{"title":"Leil Celto","description":null,"products":[{"product_id":"leil-celto-s-outdoor-sauna","title":"Leil Celto S Outdoor Sauna","description":"\u003ch3\u003eLeil Celto S - 1-2 Person Outdoor Prefab Sauna Kit\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eLeil Celto S\u003c\/strong\u003e is a 1-2 person outdoor prefab sauna kit, exclusively imported to North America by Midwest Nordic and shipped flat-packed for on-site modular assembly. Base MAP \u003cstrong\u003e$4,990\u003c\/strong\u003e. Configure your heater package, exterior finish, and optional integrated LED lighting to complete your build.\u003c\/p\u003e\n\u003ch2\u003eLeil Celto - Modern Estonian Outdoor Sauna Line\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLeil Celto\u003c\/strong\u003e is the newest series in the Leil Saunas family - a modern, architecturally-refined outdoor prefab sauna manufactured in Estonia and available exclusively through Midwest Nordic in North America. Designed for homeowners who want the authentic Nordic sauna ritual without compromising on modern design, the Celto series delivers the \u003cem\u003eLöyly\u003c\/em\u003e (steam) experience Finnish and Estonian sauna culture is built around - enveloped in a clean-lined, flat-roofed cabin that reads as contemporary garden architecture rather than a shed. Every Celto is delivered as a modular flat-pack DIY kit with pre-fabricated, pre-insulated panels, complete Nordic spruce interior cladding, tempered smoked-glass door and side panels, EPDM weather-sealed roof, and integrated ventilation - everything you need for year-round outdoor sauna use in every US climate zone, from Florida humidity to Minnesota winters.\u003c\/p\u003e\n\u003cp\u003eBuilt by Leil Saunas' Estonian manufacturing operation (Saunasell OÜ, a subsidiary of Leil Saunas OÜ), the Celto series brings the same manufacturing pedigree that has made Leil a Nordic-market leader in prefab saunas - precision-milled thermal-shield timber, refined glass integration, and hardware engineered for a 15+ year service life. Where Leil's Patio, Dice, and Round Cube lines target the premium architectural end of prefab sauna design, the \u003cstrong\u003eLeil Celto series is engineered as the accessible entry point into the Leil family\u003c\/strong\u003e: two compact footprints (S and M), sensible MAP pricing, and a curated configuration matrix that keeps the buying decision simple without sacrificing meaningful choice.\u003c\/p\u003e\n\u003ch3\u003eDesign Philosophy - Nordic Minimalism, Architectural Presence\u003c\/h3\u003e\n\u003cp\u003eThe Celto is engineered around three design principles: \u003cstrong\u003earchitectural silhouette\u003c\/strong\u003e, \u003cstrong\u003eauthentic Löyly\u003c\/strong\u003e, and \u003cstrong\u003einstallation simplicity\u003c\/strong\u003e. The flat-roofed cube form pairs with generous smoked-glass panels to give the Celto a distinctly contemporary presence in a garden, on a patio, or against a modern home façade - where a traditional barrel or A-frame sauna would read as rustic, the Celto reads as considered outdoor architecture. The interior geometry is optimized for the traditional \u003cem\u003eLöyly\u003c\/em\u003e steam ritual: bench heights placed to catch the rising humid heat, back-rest lighting that puts warmth exactly where the eye lingers, and a heater bay sized for high-mass electric heaters that hold heat and produce the deep, wet steam Estonian sauna culture is built around.\u003c\/p\u003e\n\u003ch3\u003eMake It Yours - Stain to Match Your Home\u003c\/h3\u003e\n\u003cp\u003eEvery Celto ships in its \u003cstrong\u003enatural, unstained Nordic spruce\u003c\/strong\u003e - a beautiful, honest starting point that reflects the raw material tradition of Finnish and Estonian sauna craft. As you'll see in our sample photos, the lumber takes stain \u003cem\u003eexceptionally\u003c\/em\u003e well: a soft coastal whitewash, a warm modern beige, a bold anthracite charcoal - whatever finish best complements your landscape, deck, or home exterior. Because everyone's taste and setting is different, we ship the sauna \u003cstrong\u003eready for you to personalize\u003c\/strong\u003e with any exterior wood stain from your local hardware store (Behr, Cabot, Sherwin-Williams, Sikkens, Olympic - all readily available). Two coats with a foam roller and brush cut-in on a warm afternoon and your Celto reads as bespoke, one-of-a-kind outdoor architecture that looks like it was designed for your specific home.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSample photos throughout this listing show what the Celto looks like once stained. Every Celto ships in its natural spruce state and is finished on-site by the customer to their preferred color.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eMaterials \u0026amp; Construction\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Panels:\u003c\/strong\u003e Pre-fabricated modular Nordic spruce panels, factory-insulated, ~60 mm (2.4 in) thick with integrated vapor barrier. Panels arrive numbered and pre-drilled - assembly is a follow-the-numbers process, not a carpentry project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior Cladding:\u003c\/strong\u003e Solid Nordic spruce tongue-and-groove profile boards on all walls and ceiling. Spruce is chosen over cedar for a lighter tone, cleaner grain, and lower resin release - the signature \"Nordic look\" of a proper Estonian sauna.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBenches \u0026amp; Backrests:\u003c\/strong\u003e Cool-to-touch European Aspen or Alder (both species have very low thermal conductivity - comfortable to sit on even when the sauna is at 200°F). Two-tier bench configuration on the Celto M with backrest lighting; single-tier plus removable bench box on the Celto S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor:\u003c\/strong\u003e Full-height tempered smoked\/bronze-tinted glass hinged door with matte black hardware. 8 mm safety glass. Side glass panels flank the door on both models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof:\u003c\/strong\u003e Pre-cut EPDM rubber membrane sealed over the panel roof deck - the same waterproofing used on commercial flat roofs. Rated for freeze-thaw cycling and UV exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Two positive-pressure vent ports (intake near the heater base, exhaust high on the opposite wall) sized for the room volume - this is what creates the correct airflow for authentic sauna operation and heater lifespan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Marine-grade stainless steel fasteners throughout; matte black powder-coated door hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoundation:\u003c\/strong\u003e Kit ships with adjustable base runners. Requires a level pad - concrete, paver, or reinforced deck.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included - Celto S Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set of numbered wall panels (front, rear, both sides)\u003c\/li\u003e\n\u003cli\u003ePre-cut ceiling and floor panels with insulation\u003c\/li\u003e\n\u003cli\u003eTempered smoked-glass door (8 mm) with matte black hardware\u003c\/li\u003e\n\u003cli\u003eTempered smoked-glass side panels (4 total)\u003c\/li\u003e\n\u003cli\u003eAluminum door threshold and glass slats\u003c\/li\u003e\n\u003cli\u003eNordic spruce interior cladding boards (pre-cut lengths)\u003c\/li\u003e\n\u003cli\u003eCool-touch Aspen bench, backrest, and removable bench box\u003c\/li\u003e\n\u003cli\u003eEPDM roof membrane (78.7 × 59 inches, pre-cut)\u003c\/li\u003e\n\u003cli\u003eComplete ventilation kit (intake + exhaust ports with covers)\u003c\/li\u003e\n\u003cli\u003eAll fasteners: N25 nails (100 ct) plus S40\/S50\/S80 wood screws (240 total)\u003c\/li\u003e\n\u003cli\u003eIllustrated 20-step assembly manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications - Celto S\u003c\/h3\u003e\n\u003cdiv class=\"sauna-product__table-wrapper\"\u003e\n\u003ctable class=\"sauna-product__table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eCelto S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e1-2 person\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eSingle-tier bench + removable bench box (changing seat)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eWall Construction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e60 mm (2.4 in) pre-fabricated insulated spruce panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eInterior\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eNordic spruce cladding · Aspen bench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eGlass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e8 mm tempered smoked\/bronze; door + 4 side panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eRoof\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eEPDM weather-sealed membrane (78.7 × 59 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eHeater Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e\n\u003cp\u003e\u003cstrong\u003eHeater Package\u003c\/strong\u003e - Select \"Bring Your Own Heater\" if you're sourcing separately, or choose a complete factory package that includes Heater + Sauna Stones + Control unit. We stock complete bundles from three of the top sauna-heater manufacturers in the world: \u003cstrong\u003eHarvia\u003c\/strong\u003e (Finland), \u003cstrong\u003eHomecraft\u003c\/strong\u003e (Estonia), and \u003cstrong\u003eHUUM\u003c\/strong\u003e (Estonia). Bundle-pricing your heater at checkout saves 5-10% versus buying the same components separately.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eLighting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e\n\u003cp\u003eChoose \"No Lighting\" for a fully unlit kit, or add \u003cstrong\u003eBackrest and Under Bench Lighting\u003c\/strong\u003e - LED-strip lighting for under the bench and behind the backrest, controlled by a dimmer switch. Kit includes LED strip, cable, transformer, dimmer switch, and installation box. Sized specifically for each Celto model.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eWant a custom stained look?\u003c\/em\u003e Every Celto ships in natural unstained spruce so you can finish it on-site with any exterior wood stain from your local hardware store - see the \u003cstrong\u003e\"Make It Yours\"\u003c\/strong\u003e section above for details.\u003c\/p\u003e\n\u003ch3\u003eFoundation \u0026amp; Electrical Requirements\u003c\/h3\u003e\n\u003ch4\u003eFoundation Requirements\u003c\/h4\u003e\n\u003cp\u003eThe Celto requires a \u003cstrong\u003elevel, non-shifting foundation\u003c\/strong\u003e. Any of the following work:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePoured concrete pad, 4 in. minimum thickness, sized ~4 in. larger than the sauna footprint on all sides\u003c\/li\u003e\n\u003cli\u003eCompacted gravel pad topped with concrete pavers\u003c\/li\u003e\n\u003cli\u003eExisting reinforced deck rated for the sauna's weight (approximately 700 lbs for the Celto S \/ 1,000 lbs for the Celto M, plus 2-4 users)\u003c\/li\u003e\n\u003cli\u003eLevel, undisturbed soil is \u003cem\u003enot\u003c\/em\u003e sufficient - the sauna needs a rigid, drainage-friendly surface underneath\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAssembly Overview\u003c\/h3\u003e\n\u003cp\u003eThe Celto is designed for follow-the-numbers modular assembly. The kit ships flat-packed with every panel, board, and fastener pre-cut and numbered to match the illustrated 20-step manual. Two adults can complete the Celto S in one long day, or the Celto M in one to two days with three people for the glass panel installation.\u003c\/p\u003e\n\u003ch4\u003eAssembly Sequence (Overview)\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSite prep - level the foundation, position the base runners\u003c\/li\u003e\n\u003cli\u003eFrame the floor panel (F1 + F2 base with structural brackets)\u003c\/li\u003e\n\u003cli\u003eErect wall panels (W60 side wall + W80 back walls with W290 rear support)\u003c\/li\u003e\n\u003cli\u003eInstall ventilation ports (intake V200 at 200 mm from panel edge, exhaust V400 at 400 mm)\u003c\/li\u003e\n\u003cli\u003eSet ceiling panels and interior cladding\u003c\/li\u003e\n\u003cli\u003eInstall door frame with S80 screws + door with matte black hardware\u003c\/li\u003e\n\u003cli\u003eSet tempered glass side panels with aluminum retaining slats\u003c\/li\u003e\n\u003cli\u003eInstall benches, backrests, and (if included) LED strip channel\u003c\/li\u003e\n\u003cli\u003eLay EPDM roof membrane\u003c\/li\u003e\n\u003cli\u003eMount and wire heater; install thermostat sensor per heater manual\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAll required nails and screws are counted and included. Only recommended tools: a cordless drill\/driver with Ø 3 mm and Ø 4 mm pilot bits, a level, and rubber-soled work gloves.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Care\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStructural Warranty:\u003c\/strong\u003e 24 months on the Celto cabin structure, hardware, and factory workmanship, honored by the Estonian manufacturer through Midwest Nordic. Damage from improper assembly (contrary to the printed manual) or unauthorized modifications voids the warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeater Warranty:\u003c\/strong\u003e Each heater in the Heater Package options carries its own manufacturer warranty - Harvia (2 years), Homecraft (2 years), HUUM (5 years on the Drop and Hive Mini heaters, 2 years on UKU controllers).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExterior Wood Care:\u003c\/strong\u003e Every Celto ships in natural unstained spruce. Left untreated, the exterior will silver over time from UV exposure - a signature \"Nordic weathered\" look many customers love. To preserve the fresh tone or achieve a specific color, apply an exterior wood stain (Behr, Cabot, Sherwin-Williams, Sikkens, Olympic - any quality hardware-store brand) within the first few weeks of assembly. Reapply per the stain manufacturer's recommended interval (typically every 2-4 years). Clean with a soft brush and mild soap; avoid close-range pressure washing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterior Wood Care:\u003c\/strong\u003e The interior spruce, aspen benches, and backrests do not need any coating (coatings would crack under sauna heat). Sweep out ash \/ stone dust after each use; wipe down benches with a damp cloth. Every 6-12 months, treat the benches with sauna-safe paraffin oil to preserve grain and moisture resistance.\u003c\/p\u003e\n\u003ch3\u003eThe Full Leil Celto Line\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeil Celto S\u003c\/strong\u003e - 1-2 person compact outdoor sauna. Base MAP $4,990. Ideal for smaller yards, condos with private outdoor space, or as a companion to a hot tub \/ cold plunge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeil Celto M\u003c\/strong\u003e - 3-4 person outdoor sauna with two-tier benches and front-room bench box. Base MAP $5,990. Our most popular Celto configuration for family and couples' use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlso from Leil Saunas\u003c\/h4\u003e\n\u003cp\u003eExplore the full Leil family: \u003cstrong\u003ePatio\u003c\/strong\u003e series (7 sizes, XXS through L Plus), \u003cstrong\u003eDice\u003c\/strong\u003e series (5 modern geometric layouts), and \u003cstrong\u003eRound Cube\u003c\/strong\u003e series (4 cylindrical premium models).\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Leil Celto series is sold exclusively through Midwest Nordic in North America - not available at any other US reseller.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eBase MAP shown reflects the sauna cabin kit only. Final invoice reflects your selected heater package, finish, and lighting add-ons. Contact Midwest Nordic for shipping quote and delivery scheduling.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"Leil® Saunas","offers":[{"title":"Bring Your Own Heater \/ No Lighting","offer_id":48476001304817,"sku":"CELTO-S+BYO+NOLED","price":4990.0,"currency_code":"USD","in_stock":true},{"title":"Bring Your Own Heater \/ Backrest and Under Bench Lighting","offer_id":48476001337585,"sku":"CELTO-S+BYO+LED","price":5380.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia KIP B (dial control) + Stones \/ No Lighting","offer_id":48476001370353,"sku":"CELTO-S+HAR-KIPB6+NOLED","price":6040.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia KIP B (dial control) + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001403121,"sku":"CELTO-S+HAR-KIPB6+LED","price":6430.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia KIP W + Xenio WiFi Smart Control + Stones \/ No Lighting","offer_id":48476001435889,"sku":"CELTO-S+HAR-KIPW6+NOLED","price":6890.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia KIP W + Xenio WiFi Smart Control + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001468657,"sku":"CELTO-S+HAR-KIPW6+LED","price":7280.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia Virta + Xenio WiFi Control + Stones \/ No Lighting","offer_id":48476001501425,"sku":"CELTO-S+HAR-VIRTA6+NOLED","price":7690.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Homecraft Revive Slim + TKE2-2 WiFi + Stones \/ No Lighting","offer_id":48476001534193,"sku":"CELTO-S+HC-REVS6+NOLED","price":7721.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Harvia Virta + Xenio WiFi Control + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001566961,"sku":"CELTO-S+HAR-VIRTA6+LED","price":8080.0,"currency_code":"USD","in_stock":true},{"title":"6 kW Homecraft Revive Slim + TKE2-2 WiFi + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001599729,"sku":"CELTO-S+HC-REVS6+LED","price":8111.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Drop 6 kW + UKU WiFi + Stones + Drip Tray + Railing \/ No Lighting","offer_id":48476001632497,"sku":"CELTO-S+HUUM-DROP6+NOLED","price":8541.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Drop 6 kW + UKU WiFi + Stones + Drip Tray + Railing \/ Backrest and Under Bench Lighting","offer_id":48476001665265,"sku":"CELTO-S+HUUM-DROP6+LED","price":8931.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Hive Mini 9 kW + UKU WiFi + Stones + Safety Railing \/ No Lighting","offer_id":48476001698033,"sku":"CELTO-S+HUUM-HIVE9+NOLED","price":9773.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Hive Mini 9 kW + UKU WiFi + Stones + Safety Railing \/ Backrest and Under Bench Lighting","offer_id":48476001730801,"sku":"CELTO-S+HUUM-HIVE9+LED","price":10163.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/6386\/3453\/files\/LeilCeltoSOutdoorSauna04.webp?v=1785872083"},{"product_id":"leil-celto-m-outdoor-sauna","title":"Leil Celto M Outdoor Sauna","description":"\u003ch3\u003eLeil Celto M - 3-4 Person Outdoor Prefab Sauna Kit\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eLeil Celto M\u003c\/strong\u003e is a 3-4 person outdoor prefab sauna kit, exclusively imported to North America by Midwest Nordic and shipped flat-packed for on-site modular assembly. Base MAP \u003cstrong\u003e$5,990\u003c\/strong\u003e. Configure your heater package, exterior finish, and optional integrated LED lighting to complete your build.\u003c\/p\u003e\n\u003ch2\u003eLeil Celto - Modern Estonian Outdoor Sauna Line\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eLeil Celto\u003c\/strong\u003e is the newest series in the Leil Saunas family - a modern, architecturally-refined outdoor prefab sauna manufactured in Estonia and available exclusively through Midwest Nordic in North America. Designed for homeowners who want the authentic Nordic sauna ritual without compromising on modern design, the Celto series delivers the \u003cem\u003eLöyly\u003c\/em\u003e (steam) experience Finnish and Estonian sauna culture is built around - enveloped in a clean-lined, flat-roofed cabin that reads as contemporary garden architecture rather than a shed. Every Celto is delivered as a modular flat-pack DIY kit with pre-fabricated, pre-insulated panels, complete Nordic spruce interior cladding, tempered smoked-glass door and side panels, EPDM weather-sealed roof, and integrated ventilation - everything you need for year-round outdoor sauna use in every US climate zone, from Florida humidity to Minnesota winters.\u003c\/p\u003e\n\u003cp\u003eBuilt by Leil Saunas' Estonian manufacturing operation (Saunasell OÜ, a subsidiary of Leil Saunas OÜ), the Celto series brings the same manufacturing pedigree that has made Leil a Nordic-market leader in prefab saunas - precision-milled thermal-shield timber, refined glass integration, and hardware engineered for a 15+ year service life. Where Leil's Patio, Dice, and Round Cube lines target the premium architectural end of prefab sauna design, the \u003cstrong\u003eLeil Celto series is engineered as the accessible entry point into the Leil family\u003c\/strong\u003e: two compact footprints (S and M), sensible MAP pricing, and a curated configuration matrix that keeps the buying decision simple without sacrificing meaningful choice.\u003c\/p\u003e\n\u003ch3\u003eDesign Philosophy - Nordic Minimalism, Architectural Presence\u003c\/h3\u003e\n\u003cp\u003eThe Celto is engineered around three design principles: \u003cstrong\u003earchitectural silhouette\u003c\/strong\u003e, \u003cstrong\u003eauthentic Löyly\u003c\/strong\u003e, and \u003cstrong\u003einstallation simplicity\u003c\/strong\u003e. The flat-roofed cube form pairs with generous smoked-glass panels to give the Celto a distinctly contemporary presence in a garden, on a patio, or against a modern home façade - where a traditional barrel or A-frame sauna would read as rustic, the Celto reads as considered outdoor architecture. The interior geometry is optimized for the traditional \u003cem\u003eLöyly\u003c\/em\u003e steam ritual: bench heights placed to catch the rising humid heat, back-rest lighting that puts warmth exactly where the eye lingers, and a heater bay sized for high-mass electric heaters that hold heat and produce the deep, wet steam Estonian sauna culture is built around.\u003c\/p\u003e\n\u003ch3\u003eMake It Yours - Stain to Match Your Home\u003c\/h3\u003e\n\u003cp\u003eEvery Celto ships in its \u003cstrong\u003enatural, unstained Nordic spruce\u003c\/strong\u003e - a beautiful, honest starting point that reflects the raw material tradition of Finnish and Estonian sauna craft. As you'll see in our sample photos, the lumber takes stain \u003cem\u003eexceptionally\u003c\/em\u003e well: a soft coastal whitewash, a warm modern beige, a bold anthracite charcoal - whatever finish best complements your landscape, deck, or home exterior. Because everyone's taste and setting is different, we ship the sauna \u003cstrong\u003eready for you to personalize\u003c\/strong\u003e with any exterior wood stain from your local hardware store (Behr, Cabot, Sherwin-Williams, Sikkens, Olympic - all readily available). Two coats with a foam roller and brush cut-in on a warm afternoon and your Celto reads as bespoke, one-of-a-kind outdoor architecture that looks like it was designed for your specific home.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSample photos throughout this listing show what the Celto looks like once stained. Every Celto ships in its natural spruce state and is finished on-site by the customer to their preferred color.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eMaterials \u0026amp; Construction\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWall Panels:\u003c\/strong\u003e Pre-fabricated modular Nordic spruce panels, factory-insulated, ~60 mm (2.4 in) thick with integrated vapor barrier. Panels arrive numbered and pre-drilled - assembly is a follow-the-numbers process, not a carpentry project.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior Cladding:\u003c\/strong\u003e Solid Nordic spruce tongue-and-groove profile boards on all walls and ceiling. Spruce is chosen over cedar for a lighter tone, cleaner grain, and lower resin release - the signature \"Nordic look\" of a proper Estonian sauna.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBenches \u0026amp; Backrests:\u003c\/strong\u003e Cool-to-touch European Aspen or Alder (both species have very low thermal conductivity - comfortable to sit on even when the sauna is at 200°F). Two-tier bench configuration on the Celto M with backrest lighting; single-tier plus removable bench box on the Celto S.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoor:\u003c\/strong\u003e Full-height tempered smoked\/bronze-tinted glass hinged door with matte black hardware. 8 mm safety glass. Side glass panels flank the door on both models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoof:\u003c\/strong\u003e Pre-cut EPDM rubber membrane sealed over the panel roof deck - the same waterproofing used on commercial flat roofs. Rated for freeze-thaw cycling and UV exposure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Two positive-pressure vent ports (intake near the heater base, exhaust high on the opposite wall) sized for the room volume - this is what creates the correct airflow for authentic sauna operation and heater lifespan.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Marine-grade stainless steel fasteners throughout; matte black powder-coated door hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoundation:\u003c\/strong\u003e Kit ships with adjustable base runners. Requires a level pad - concrete, paver, or reinforced deck.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat's Included - Celto M Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eComplete set of numbered wall panels sized for the larger Celto M footprint\u003c\/li\u003e\n\u003cli\u003ePre-cut ceiling and floor panels with integrated insulation\u003c\/li\u003e\n\u003cli\u003eTempered smoked-glass door (8 mm) with matte black hardware\u003c\/li\u003e\n\u003cli\u003eTempered smoked-glass side and front panels\u003c\/li\u003e\n\u003cli\u003eAluminum door threshold and glass retaining slats\u003c\/li\u003e\n\u003cli\u003eNordic spruce interior cladding boards (pre-cut lengths)\u003c\/li\u003e\n\u003cli\u003eTwo-tier Aspen bench system with cool-touch backrest and removable front-room bench box\u003c\/li\u003e\n\u003cli\u003ePre-cut backrest with integrated LED strip channel (accepts optional Backrest and Under Bench Lighting)\u003c\/li\u003e\n\u003cli\u003eEPDM roof membrane, pre-cut to size\u003c\/li\u003e\n\u003cli\u003eComplete ventilation kit - positive-pressure intake near heater plus high exhaust vent with covers\u003c\/li\u003e\n\u003cli\u003eAll fasteners: N25 nails, S40\/S50\/S80 wood screws, and dedicated bench screw set\u003c\/li\u003e\n\u003cli\u003eIllustrated assembly manual with parts diagram\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications - Celto M\u003c\/h3\u003e\n\u003cdiv class=\"sauna-product__table-wrapper\"\u003e\n\u003ctable class=\"sauna-product__table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eCelto M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e3-4 person\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eTwo-tier bench system + front-room bench box, with backrest lighting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eWall Construction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e60 mm (2.4 in) pre-fabricated insulated spruce panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eInterior\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eNordic spruce cladding · two-tier Aspen bench system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eGlass\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e8 mm tempered smoked\/bronze; door + side and front panels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eRoof\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003eEPDM weather-sealed membrane, pre-cut to size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"sauna-product__table-row--alt\"\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eHeater Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e\n\u003cp\u003e\u003cstrong\u003eHeater Package\u003c\/strong\u003e - Select \"Bring Your Own Heater\" if you're sourcing separately, or choose a complete factory package that includes Heater + Sauna Stones + Control unit. We stock complete bundles from three of the top sauna-heater manufacturers in the world: \u003cstrong\u003eHarvia\u003c\/strong\u003e (Finland), \u003cstrong\u003eHomecraft\u003c\/strong\u003e (Estonia), and \u003cstrong\u003eHUUM\u003c\/strong\u003e (Estonia). Bundle-pricing your heater at checkout saves 5-10% versus buying the same components separately.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"sauna-product__table-cell sauna-product__label-cell\"\u003e\u003cstrong\u003eLighting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd class=\"sauna-product__table-cell\"\u003e\n\u003cp\u003eChoose \"No Lighting\" for a fully unlit kit, or add \u003cstrong\u003eBackrest and Under Bench Lighting\u003c\/strong\u003e - LED-strip lighting for under the bench and behind the backrest, controlled by a dimmer switch. Kit includes LED strip, cable, transformer, dimmer switch, and installation box. Sized specifically for each Celto model.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cem\u003eWant a custom stained look?\u003c\/em\u003e Every Celto ships in natural unstained spruce so you can finish it on-site with any exterior wood stain from your local hardware store - see the \u003cstrong\u003e\"Make It Yours\"\u003c\/strong\u003e section above for details.\u003c\/p\u003e\n\u003ch3\u003eFoundation \u0026amp; Electrical Requirements\u003c\/h3\u003e\n\u003ch4\u003eFoundation Requirements\u003c\/h4\u003e\n\u003cp\u003eThe Celto requires a \u003cstrong\u003elevel, non-shifting foundation\u003c\/strong\u003e. Any of the following work:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePoured concrete pad, 4 in. minimum thickness, sized ~4 in. larger than the sauna footprint on all sides\u003c\/li\u003e\n\u003cli\u003eCompacted gravel pad topped with concrete pavers\u003c\/li\u003e\n\u003cli\u003eExisting reinforced deck rated for the sauna's weight (approximately 700 lbs for the Celto S \/ 1,000 lbs for the Celto M, plus 2-4 users)\u003c\/li\u003e\n\u003cli\u003eLevel, undisturbed soil is \u003cem\u003enot\u003c\/em\u003e sufficient - the sauna needs a rigid, drainage-friendly surface underneath\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAssembly Overview\u003c\/h3\u003e\n\u003cp\u003eThe Celto is designed for follow-the-numbers modular assembly. The kit ships flat-packed with every panel, board, and fastener pre-cut and numbered to match the illustrated 20-step manual. Two adults can complete the Celto S in one long day, or the Celto M in one to two days with three people for the glass panel installation.\u003c\/p\u003e\n\u003ch4\u003eAssembly Sequence (Overview)\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eSite prep - level the foundation, position the base runners\u003c\/li\u003e\n\u003cli\u003eFrame the floor panel (F1 + F2 base with structural brackets)\u003c\/li\u003e\n\u003cli\u003eErect wall panels (W60 side wall + W80 back walls with W290 rear support)\u003c\/li\u003e\n\u003cli\u003eInstall ventilation ports (intake V200 at 200 mm from panel edge, exhaust V400 at 400 mm)\u003c\/li\u003e\n\u003cli\u003eSet ceiling panels and interior cladding\u003c\/li\u003e\n\u003cli\u003eInstall door frame with S80 screws + door with matte black hardware\u003c\/li\u003e\n\u003cli\u003eSet tempered glass side panels with aluminum retaining slats\u003c\/li\u003e\n\u003cli\u003eInstall benches, backrests, and (if included) LED strip channel\u003c\/li\u003e\n\u003cli\u003eLay EPDM roof membrane\u003c\/li\u003e\n\u003cli\u003eMount and wire heater; install thermostat sensor per heater manual\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eAll required nails and screws are counted and included. Only recommended tools: a cordless drill\/driver with Ø 3 mm and Ø 4 mm pilot bits, a level, and rubber-soled work gloves.\u003c\/p\u003e\n\u003ch3\u003eWarranty \u0026amp; Care\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStructural Warranty:\u003c\/strong\u003e 24 months on the Celto cabin structure, hardware, and factory workmanship, honored by the Estonian manufacturer through Midwest Nordic. Damage from improper assembly (contrary to the printed manual) or unauthorized modifications voids the warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeater Warranty:\u003c\/strong\u003e Each heater in the Heater Package options carries its own manufacturer warranty - Harvia (2 years), Homecraft (2 years), HUUM (5 years on the Drop and Hive Mini heaters, 2 years on UKU controllers).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExterior Wood Care:\u003c\/strong\u003e Every Celto ships in natural unstained spruce. Left untreated, the exterior will silver over time from UV exposure - a signature \"Nordic weathered\" look many customers love. To preserve the fresh tone or achieve a specific color, apply an exterior wood stain (Behr, Cabot, Sherwin-Williams, Sikkens, Olympic - any quality hardware-store brand) within the first few weeks of assembly. Reapply per the stain manufacturer's recommended interval (typically every 2-4 years). Clean with a soft brush and mild soap; avoid close-range pressure washing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInterior Wood Care:\u003c\/strong\u003e The interior spruce, aspen benches, and backrests do not need any coating (coatings would crack under sauna heat). Sweep out ash \/ stone dust after each use; wipe down benches with a damp cloth. Every 6-12 months, treat the benches with sauna-safe paraffin oil to preserve grain and moisture resistance.\u003c\/p\u003e\n\u003ch3\u003eThe Full Leil Celto Line\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeil Celto S\u003c\/strong\u003e - 1-2 person compact outdoor sauna. Base MAP $4,990. Ideal for smaller yards, condos with private outdoor space, or as a companion to a hot tub \/ cold plunge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeil Celto M\u003c\/strong\u003e - 3-4 person outdoor sauna with two-tier benches and front-room bench box. Base MAP $5,990. Our most popular Celto configuration for family and couples' use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAlso from Leil Saunas\u003c\/h4\u003e\n\u003cp\u003eExplore the full Leil family: \u003cstrong\u003ePatio\u003c\/strong\u003e series (7 sizes, XXS through L Plus), \u003cstrong\u003eDice\u003c\/strong\u003e series (5 modern geometric layouts), and \u003cstrong\u003eRound Cube\u003c\/strong\u003e series (4 cylindrical premium models).\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe Leil Celto series is sold exclusively through Midwest Nordic in North America - not available at any other US reseller.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eBase MAP shown reflects the sauna cabin kit only. Final invoice reflects your selected heater package, finish, and lighting add-ons. Contact Midwest Nordic for shipping quote and delivery scheduling.\u003c\/em\u003e\u003c\/p\u003e","brand":"Leil® Saunas","offers":[{"title":"Bring Your Own Heater \/ No Lighting","offer_id":48476001829105,"sku":"CELTO-M+BYO+NOLED","price":5990.0,"currency_code":"USD","in_stock":true},{"title":"Bring Your Own Heater \/ Backrest and Under Bench Lighting","offer_id":48476001861873,"sku":"CELTO-M+BYO+LED","price":6440.0,"currency_code":"USD","in_stock":true},{"title":"8 kW Harvia KIP B (dial control) + Stones \/ No Lighting","offer_id":48476001894641,"sku":"CELTO-M+HAR-KIPB8+NOLED","price":7190.0,"currency_code":"USD","in_stock":true},{"title":"8 kW Harvia KIP B (dial control) + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001927409,"sku":"CELTO-M+HAR-KIPB8+LED","price":7640.0,"currency_code":"USD","in_stock":true},{"title":"8 kW Harvia KIP W + Xenio WiFi Smart Control + Stones \/ No Lighting","offer_id":48476001960177,"sku":"CELTO-M+HAR-KIPW8+NOLED","price":8090.0,"currency_code":"USD","in_stock":true},{"title":"8 kW Harvia KIP W + Xenio WiFi Smart Control + Stones \/ Backrest and Under Bench Lighting","offer_id":48476001992945,"sku":"CELTO-M+HAR-KIPW8+LED","price":8540.0,"currency_code":"USD","in_stock":true},{"title":"9 kW Homecraft Revive + TKE2-2 WiFi + Stones \/ No Lighting","offer_id":48476002025713,"sku":"CELTO-M+HC-REV9+NOLED","price":8956.0,"currency_code":"USD","in_stock":true},{"title":"9 kW Harvia Virta + Xenio WiFi Control + Stones \/ No Lighting","offer_id":48476002058481,"sku":"CELTO-M+HAR-VIRTA9+NOLED","price":9190.0,"currency_code":"USD","in_stock":true},{"title":"9 kW Homecraft Revive + TKE2-2 WiFi + Stones \/ Backrest and Under Bench Lighting","offer_id":48476002091249,"sku":"CELTO-M+HC-REV9+LED","price":9406.0,"currency_code":"USD","in_stock":true},{"title":"9 kW Harvia Virta + Xenio WiFi Control + Stones \/ Backrest and Under Bench Lighting","offer_id":48476002124017,"sku":"CELTO-M+HAR-VIRTA9+LED","price":9640.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Drop 9 kW + UKU WiFi + Stones + Drip Tray + Railing \/ No Lighting","offer_id":48476002156785,"sku":"CELTO-M+HUUM-DROP9+NOLED","price":9962.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Drop 9 kW + UKU WiFi + Stones + Drip Tray + Railing \/ Backrest and Under Bench Lighting","offer_id":48476002189553,"sku":"CELTO-M+HUUM-DROP9+LED","price":10412.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Hive Mini 9 kW + UKU WiFi + Stones + Safety Railing \/ No Lighting","offer_id":48476002222321,"sku":"CELTO-M+HUUM-HIVE9+NOLED","price":10773.0,"currency_code":"USD","in_stock":true},{"title":"HUUM Hive Mini 9 kW + UKU WiFi + Stones + Safety Railing \/ Backrest and Under Bench Lighting","offer_id":48476002255089,"sku":"CELTO-M+HUUM-HIVE9+LED","price":11223.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/6386\/3453\/files\/LeilCeltoMOutdoorSauna08.webp?v=1785875390"}],"url":"https:\/\/finnishsaunabuilders.com\/collections\/leil-celto.oembed","provider":"Finnish Sauna Builders","version":"1.0","type":"link"}