{"product_id":"harvia-virta-pro-sauna-heater-xenio-smart-control","title":"Harvia Virta Pro Sauna Heater (Xenio Smart Control)","description":"\u003cp\u003eThe \u003cstrong\u003eHarvia Virta Pro Sauna Heater\u003c\/strong\u003e is Harvia's commercial-grade electric sauna heater, the same iconic brushed stainless steel housing and top-loaded vertical stone bed as the residential Virta, scaled up for boutique fitness studios, hotel spas, club lounges, and large multi-bench cabins. Available in \u003cstrong\u003e16 kW (240V 1-Phase)\u003c\/strong\u003e or \u003cstrong\u003e20 kW (208V 3-Phase)\u003c\/strong\u003e. Every Virta Pro pairs the Harvia \u003cstrong\u003eXenio CX45 Smart Control\u003c\/strong\u003e with the matching \u003cstrong\u003eLTY45 Power Extension Unit\u003c\/strong\u003e for full WiFi\/app control on a commercial-current chassis. Optional Fenix touchscreen upgrade adds Harvia's next-generation control UI.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePick the Right kW for Your Cabin\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eVirta Pro is sized for cabins from roughly 600 cu ft up to 1,400 cu ft, volumes far beyond the residential Virta line. Calculate your cabin volume as interior length × width × height. For commercial installs, also factor in the additional radiant heat loss from glass partitions, doors, and high-traffic ventilation (add 25–35% to the calculated volume).\u003c\/p\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f4f1ee;\"\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eBest For\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eCabin Volume\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eVoltage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eAmperage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eControls\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eStones\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVirta Pro 16 kW\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLight-commercial sauna installations, gyms, spa lounges, and large multi-bench residential cabins\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e600–1060 cu ft\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e240V 1-Phase\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e66.7 Amps\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCX45 + LTY45\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e5 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eVirta Pro 20 kW\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCommercial sauna installations, boutique fitness studios, hotels, club spas, and large multi-bench cabins\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e750–1400 cu ft\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e208V 3-Phase\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e55.5 Amps per leg\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eCX45 + LTY45\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7 boxes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial-grade electric sauna heater, brushed stainless steel housing with vertical stone bed across the front; top-loaded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo outputs\u003c\/strong\u003e: 16 kW @ 240V 1-Phase (HL16U1) for light-commercial installs; 20 kW @ 208V 3-Phase (HL20U3) for full-commercial 3-phase service.\u003c\/li\u003e\n\u003cli\u003ePairs with the external \u003cstrong\u003eHarvia Xenio CX45 Smart Control\u003c\/strong\u003e + \u003cstrong\u003eLTY45 Power Extension Unit\u003c\/strong\u003e (both required), WiFi-enabled, MyHarvia app compatible.\u003c\/li\u003e\n\u003cli\u003eOptional \u003cstrong\u003eFenix Upgrade\u003c\/strong\u003e (Tier 3) adds Harvia's next-generation FX004XW touchscreen display on top of the Xenio CX45.\u003c\/li\u003e\n\u003cli\u003eShips with \u003cstrong\u003e5 boxes (16 kW)\u003c\/strong\u003e or \u003cstrong\u003e7 boxes (20 kW)\u003c\/strong\u003e of AC3020 olivine diabase stones in Tier 2+, sized for the Virta Pro's commercial-scale stone bed.\u003c\/li\u003e\n\u003cli\u003eCabin volume range: 16 kW = 600–1,060 cu ft; 20 kW = 750–1,400 cu ft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL Listed\u003c\/strong\u003e for commercial sauna installations; backed by Harvia's commercial warranty.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f4f1ee;\"\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003ePackage\u003c\/th\u003e\n\u003cth style=\"padding: 8px; text-align: left; border: 1px solid #ddd;\"\u003eIncludes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eVirta Pro Just Heater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eHarvia Virta Pro heater body in the selected kW size and voltage\u003c\/li\u003e\n\u003cli\u003eHeater only, CX45 + LTY45 control bundle sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eVirta Pro Heater + Control + Stones\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eHarvia Virta Pro heater body in the selected kW size and voltage\u003c\/li\u003e\n\u003cli\u003eHarvia Xenio CX45 Smart Control power unit (WiFi-enabled, MyHarvia app)\u003c\/li\u003e\n\u003cli\u003eHarvia LTY45 Power Extension Unit (required contactor box on every Virta Pro)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 boxes (16 kW) or 7 boxes (20 kW) of Harvia AC3020 Sauna Stones\u003c\/strong\u003e, olivine diabase, 10–15 cm, 20 kg per box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\u003cstrong\u003eVirta Pro Heater + Control + Stones + Fenix Upgrade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd; vertical-align: top;\"\u003e\n\u003cul style=\"margin: 0; padding-left: 18px;\"\u003e\n\u003cli\u003eEverything in the \"Heater + Control + Stones\" package above\u003c\/li\u003e\n\u003cli\u003eHarvia Fenix FX004XW Touchscreen Display Add-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eXenio CX + Fenix Upgrade, What's the Difference?\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTier 2 (\"Virta Pro Heater + Control + Stones\") bundles the \u003cstrong\u003eHarvia Xenio CX45 Smart Control\u003c\/strong\u003e power unit and the matching \u003cstrong\u003eLTY45 Power Extension Unit\u003c\/strong\u003e, required as a pair on every Virta Pro because of the heater's commercial-grade current draw. The Xenio CX45 ships with WiFi built in and connects to the MyHarvia smartphone app for remote start and scheduling.\u003c\/p\u003e\n\u003cp\u003eTier 3 (\"Virta Pro Heater + Control + Stones + Fenix Upgrade\") adds the \u003cstrong\u003eHarvia Fenix FX004XW Touchscreen Display\u003c\/strong\u003e on top of the Xenio CX45, Harvia's next-generation control UI, for the longest-runway platform investment as Harvia eventually transitions from the Xenio control panel to the Fenix touchscreen across the line.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSauna Stones\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eVirta Pro's tall vertical stone bed and commercial-scale kW output require a substantial volume of sauna stones to hold and release heat evenly across long, multi-session commercial usage. Every \"Heater + Control + Stones\" package (and the Fenix Upgrade tier) ships with the correct quantity of \u003cstrong\u003eHarvia AC3020 sauna stones\u003c\/strong\u003e, olivine diabase, 10–15 cm size grade, 20 kg (44 lb) per box. The larger 10–15 cm grade is preferred for Virta Pro because the bigger stones pack more efficiently into the heater's vertical stone bed and they hold heat longer through repeated water throws. Stone quantity by kW: \u003cstrong\u003e5 boxes (16 kW), 7 boxes (20 kW)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation \u0026amp; Electrical Requirements\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eVirta Pro is commercial-grade and requires a dedicated heavy-duty circuit wired by a licensed electrician familiar with commercial sauna installations: the 16 kW HL16U1 runs on \u003cstrong\u003e240V 1-Phase at 66.7 A\u003c\/strong\u003e (4 AWG copper minimum); the 20 kW HL20U3 runs on \u003cstrong\u003e208V 3-Phase at ~55.5 A per leg\u003c\/strong\u003e (6 AWG copper minimum). Always defer to the included Harvia installation manual and your local AHJ for final wire-size and overcurrent-protection requirements. Virta Pro is UL Listed.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Manual\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Harvia Virta Pro Installation Manual\" href=\"https:\/\/drive.google.com\/file\/d\/18xmwdY7s99qgu0Gc3hcrQ8Du6snDAfrK\/view?usp=sharing\" target=\"_blank\"\u003eClick Here to Download the Harvia Virta Pro Installation Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout the Harvia Virta Pro Family\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHarvia Virta Pro is the commercial-grade big brother of the residential Virta, same brushed stainless steel housing and top-loaded vertical stone bed, scaled up for the demands of light- and full-commercial sauna installations. Available in 16 kW (240V 1-Phase, HL16U1) and 20 kW (208V 3-Phase, HL20U3) outputs, the Virta Pro is rated for sauna cabins from roughly 600 cu ft up to 1,400 cu ft, the volumes typical of boutique fitness studios, hotel spas, club lounges, and multi-bench residential builds.\u003c\/p\u003e\n\u003cp\u003eBecause the Virta Pro draws far more current than the standard Xenio CX45 can switch on its own, every Virta Pro install pairs the \u003cstrong\u003eCX45 Smart Control\u003c\/strong\u003e with the matching \u003cstrong\u003eLTY45 Power Extension Unit\u003c\/strong\u003e (a contactor box that hands off the high-current load while leaving the CX45 in charge of scheduling, WiFi\/MyHarvia app control, and temperature regulation). The optional \u003cstrong\u003eFenix Upgrade\u003c\/strong\u003e adds Harvia's next-generation FX004XW touchscreen display on top of the Xenio CX.\u003c\/p\u003e\n\u003cp\u003eFor smaller residential cabins (up to 10.5 kW), see the Harvia Virta sibling line.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhy Buy From Finnish Sauna Builders\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAs an authorized Harvia dealer, Finnish Sauna Builders sources every heater direct from Harvia US (Lewisburg, WV) with full factory warranty and dealer technical support. Free shipping on all Harvia heaters; white-glove install coordination available nationwide for commercial Virta Pro installations.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWarranty \u0026amp; Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHarvia Virta Pro carries Harvia's commercial limited warranty terms. Finnish Sauna Builders handles all warranty claims direct, no third-party return desk. Contact us for a commercial spec sheet, written quote, or site survey support.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout Harvia\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eHarvia has been building world-class sauna heaters in Finland since 1950. Every Harvia product carries forward more than 70 years of Finnish craftsmanship, materials science, and a relentless focus on the perfect löyly, the heated, humid burst of steam released when water meets hot sauna stones.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eVideos\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/PGK7Xg7k59Y\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/p5S22TPCd_I\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Harvia","offers":[{"title":"16 kW (240V 1-Phase, 600–1060 cu ft) \/ Virta Pro Just Heater","offer_id":48346936443121,"sku":"14-HL16U1","price":3736.0,"currency_code":"USD","in_stock":true},{"title":"16 kW (240V 1-Phase, 600–1060 cu ft) \/ Virta Pro Heater + Control + Stones","offer_id":48346936475889,"sku":"14-HL16U1+CX+LTY+STONES","price":5938.0,"currency_code":"USD","in_stock":true},{"title":"16 kW (240V 1-Phase, 600–1060 cu ft) \/ Virta Pro Heater + Control + Stones + Fenix Upgrade","offer_id":48346936508657,"sku":"14-HL16U1+CX+LTY+STONES+FX004","price":6604.0,"currency_code":"USD","in_stock":true},{"title":"20 kW (208V 3-Phase, 750–1400 cu ft) \/ Virta Pro Just Heater","offer_id":48346936541425,"sku":"14-HL20U3","price":4943.0,"currency_code":"USD","in_stock":true},{"title":"20 kW (208V 3-Phase, 750–1400 cu ft) \/ Virta Pro Heater + Control + Stones","offer_id":48346936574193,"sku":"14-HL20U3+CX+LTY+STONES","price":7269.0,"currency_code":"USD","in_stock":true},{"title":"20 kW (208V 3-Phase, 750–1400 cu ft) \/ Virta Pro Heater + Control + Stones + Fenix Upgrade","offer_id":48346936606961,"sku":"14-HL20U3+CX+LTY+STONES+FX004","price":7935.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0582\/6386\/3453\/files\/Harvia_Virta_Pro_HL160_16kw_Sauna_Heater_-_Finnish_Sauna_Builders.webp?v=1782322446","url":"https:\/\/finnishsaunabuilders.com\/products\/harvia-virta-pro-sauna-heater-xenio-smart-control","provider":"Finnish Sauna Builders","version":"1.0","type":"link"}