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Harvia Spirit 8KW Sauna Heater (250-425CF)

Sale price $1,777.00 Regular price $1,972.47
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Package: Spirit Just Heater

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Finance Your Next Sauna with Bread Pay®

We have teamed up with Bread Pay® to offer easy financing - without a catch. There are no origination fees or prepayment penalties. Provide some basic information and get a real time decision to split your purchase into 12, 24, or 36 monthly payments* or even break up your purchase between a credit card and financing. Apply for Bread Pay® financing online today!

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*Minimum purchase of $50.00 is required. Availability of terms may vary based on purchase price, product, and state of residence. Down payment may be required. Subject to approval of credit application. Rates range from 0% to 34.99% APR, resulting in, for example 24 monthly payments of $51.87 at 21.99% APR, per $1,000.00 borrowed. APRs will vary depending on credit qualifications, loan amount, and term. Bread Pay® loans are made by Comenity Capital Bank, a Bread Financial® company.

HSA / FSA Funds

 

HSA/FSA Funds

Exciting news - we’ve partnered with TrueMed to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA) at Nordica This means you can buy our products with pre-tax dollars, resulting in net savings of 30-40%. 

TrueMed is on a mission to make healthy options more affordable. You can learn more about them here.

Since saunas, ice bath tubs, and other wellness products are now considered to be very beneficial tools for one's mental and physical health, FSA and HSA cards are now being accepted as health and medical expenses. 

HSAs and FSAs were created for you to spend tax-advantaged dollars on products and services that can treat or prevent medical conditions and TrueMed is making it easy to do just that.

 

Description

The Harvia Spirit 8 kW Electric Sauna Heater (HSPE80UM) is the 8-kilowatt variant of Harvia's most popular U.S. residential wall-mounted sauna heater. The W-suffix Spirit body pairs with the external Harvia Xenio CX45 Smart Control power unit (bundled in Tier 2 and Tier 3) for full digital scheduling, WiFi/MyHarvia control, and remote start. Sized for large residential / family-size sauna cabins (4–5 person bench) from 250 to 425 cubic feet of interior volume.

Key Features

  • Capable of heating sauna rooms from 250 to 425 cubic feet.
  • Compact unit dimensions of 14"D x 16.5"W x 22"H for installs where wall space is at a premium.
  • Powerful 8 Kilowatts and 33 Amps performance on a 240V 1-Phase circuit.
  • Requires 8 Gauge Copper for installation.
  • Bundled with the Harvia Xenio CX45 Smart Control (Tier 2+), WiFi-enabled, MyHarvia app compatible.
  • Signature rounded stone bed, requires 4 boxes of Harvia R-991 rounded sauna stones (5–10 cm olivine diabase, 15 kg per box). Bundled in Tier 2+.
  • Optional Fenix touchscreen display add-on (FX004XW) at Tier 3.
  • UL Listed, assuring compliance with U.S. residential safety and quality standards.

Technical Specifications

Specification Detail
Room Volume 250 to 425 cubic feet
Dimensions 14"D x 16.5"W x 22"H
Power 8 kW, 33 Amps
Voltage 240V 1-Phase, 60 Hz
Wire Size 8 Gauge Copper
Mounting Wall Mounted (external Xenio CX control)
Control Harvia Xenio CX45 (Tier 2+), optional Fenix FX004XW touchscreen upgrade (Tier 3)
Sauna Rocks 4 × Harvia R-991 Rounded (5–10 cm, 15 kg / 33 lb per box), included with Tier 2+
Certification UL Listed
Harvia Model Code HSPE80UM (HSPE80U1M)

Why the 8 kW Size

The Spirit 8 kW is rated for sauna cabins between 250 and 425 cubic feet, best for large residential / family-size sauna cabins (4–5 person bench). Calculate your cabin volume as interior length × width × height. If the cabin includes a glass door or window, add roughly 25% to the calculated cubic footage to compensate for radiant heat loss. For smaller cabins under 250 cu ft pick the Spirit 6 kW; for the largest residential cabins step up to the Spirit 9 kW.

What's Included

Each kW size is offered in three package tiers. Pick the size from the selector above, then pick the package tier on the product page.

Package Includes
Spirit Just Heater
  • Harvia Spirit heater body in the selected kW size (240V 1-Phase)
  • Heater only, Xenio CX control unit sold separately
Spirit Heater + Control + Stones
  • Harvia Spirit heater body in the selected kW size (240V 1-Phase)
  • Harvia Xenio Smart Control power unit (CX30 for 6 kW, CX45 for 8 / 9 kW), WiFi-enabled, MyHarvia app compatible
  • 4 × Harvia R-991 Rounded Sauna Stones, olivine diabase, 5–10 cm rounded, 15 kg (33 lb) per box
Spirit Heater + Control + Stones + Fenix Upgrade
  • Everything in the "Heater + Control + Stones" package above
  • Harvia Fenix FX004XW Touchscreen Display Add-On, modern UI overlay for the Xenio CX

Xenio CX + Fenix Upgrade, What's the Difference?

Tier 2 ("Spirit Heater + Control + Stones") bundles the Harvia Xenio CX30 or CX45 power unit (auto-matched to the heater's amperage: CX30 for 6 kW, CX45 for 8/9 kW). The Xenio CX is Harvia's long-running, field-proven digital control platform, ships with WiFi built in and connects to the MyHarvia smartphone app for remote start and scheduling.

Tier 3 ("Spirit Heater + Control + Stones + Fenix Upgrade") adds the Harvia Fenix FX004XW Touchscreen Display on top of the Xenio CX. The Fenix touchscreen is the platform Harvia is investing in going forward; pairing it with the CX power unit today means you have a familiar, current-production switching base AND a modern, future-proof touchscreen interface in the sauna.

Sauna Stones, Why Rounded

Spirit's signature visual is the bed of rounded sauna stones piled across the top of the heater. Unlike the angular split stones used in most Harvia models, Spirit uses Harvia's R-991 rounded olivine diabase, 5–10 cm river-rock-style stones in 15 kg (33 lb) boxes. The rounded shape produces a softer visual profile and slightly more uniform heat distribution across the stone bed surface.

Every "Spirit Heater + Control + Stones" tier (and the Fenix Upgrade tier) ships with 4 × R-991 boxes, the correct quantity to fill the Spirit stone bed for any of the 6, 8, or 9 kW models. If you'd rather source rounded stones locally, pick the "Spirit Just Heater" tier; R-991 boxes are sold separately.

Installation & Electrical Requirements

The Spirit 8 kW requires a dedicated 240V 1-Phase circuit (33 Amps, 8 Gauge Copper) wired by a licensed electrician. Spirit is UL Listed and must be installed per the included manual and local electrical code. Consult the PDF manual below before framing-in.

Installation Manual

Click Here to Download the Harvia Spirit Installation Manual

In the Box

  • 1 × Harvia HSPE80UM Spirit Electric Sauna Heater body
  • 1 × Harvia Xenio CX Smart Control power unit (voltage- and kW-matched)
  • 4 × Harvia R-991 Rounded Sauna Stones (15 kg / 33 lb per box)
  • Installation and Operation Manual
  • Warranty Information

About the Harvia Spirit Family

Spirit is Harvia's most popular U.S. residential electric sauna heater, a sleek wall-mounted stainless steel column that sits between the compact Vega and the larger Cilindro/Virta lines. Its signature visual is the bed of rounded sauna stones piled across the top of the heater body, giving Spirit a softer, more organic stone profile compared to the angular stone beds of other Harvia models. The rounded R-991 stones also distribute heat more evenly across the bed surface, producing the clean, even löyly Spirit is known for.

Spirit pairs with the external Harvia Xenio Smart Control power unit (CX30 for the 6 kW model, CX45 for the 8 / 9 kW models) for full digital scheduling, WiFi/MyHarvia app control, and remote start. The optional Fenix Upgrade adds the next-generation Fenix FX004XW touchscreen display on top of the Xenio CX power unit, same heater, same Xenio CX wiring, but with Harvia's modern touchscreen UI in the sauna for the longest-runway platform investment.

Why Buy From Finnish Sauna Builders

As an authorized Harvia dealer, Finnish Sauna Builders sources every heater direct from Harvia US (Lewisburg, WV) with full factory warranty and dealer technical support. Our team works with you from heater sizing through installation. Free shipping on all Harvia heaters; white-glove install coordination available nationwide.

Warranty & Support

Harvia Spirit carries Harvia's standard 2-year residential limited warranty. Finnish Sauna Builders handles all warranty claims direct, no third-party return desk.

About Harvia

Harvia 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.

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