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Cedarbrook
Sauna + Steam

1.800.426.3929

Harvia Spirit 8kW Electric Sauna Heater

Harvia Spirt 6 / Harvia Spirt 8 Series with Xenio Digital
Harvia Spirt Series Heater Installed
Harvia Spirt 8 Series Heater OEM Guard Rail
Harvia Spirt 6 Series Heater Logo
Harvia Spirt 8 Series Heater Dimensions
Harvia Spirit 6 Sauna Heater Top View / Harvia Spirt 8
harvia spirit section diagram heater

Heater Details

Brand
Harvia‌
Model‌
Spirit 8‌
Power
electric‌
Place
wall mount‌
Output
8 kW‌
Load
33.3 amps‌
Breaker
40 amps‌
Wire
8 gauge‌
Min
200 cu. ft.‌
Max
431 cu. ft.‌
Rocks
110 lbs.‌
Unit
30 lbs.‌
Heater Unit Dimensions
Width
15″‌
Depth
13.1″‌
Height
29.5″‌
Compare More 8kW+ Heaters

Harvia Spirit 8kW Electric Sauna Heater

Harvia Spirit 8kW | Feel the Spirit of Löyly
The heater is at the heart of every traditional sauna experience

Made in Finland, this premium Harvia sauna heater has a large stone capacity to provide efficient, reliable heating, while the rounded stones provide soft and long-lasting steam

Harvia Spirit 8kW Electric Sauna Heater Features

  • Large stone capacity and innovative air ventilation channel provides efficient and consistent heat
  • Automatic shut-off timer will turn off heater after 60 minutes
  • Two safety sensors monitor the heater and sauna’s temperature to prevent from overheating; it will also prevent the heater from starting if anything is placed on top of it
  • Can be used to create wet or dry sauna experience depending on your preferences
  • Sauna stones included with purchase

Digital or WiFi-enabled controls are REQUIRED to operate this sauna heater. The control panel can be installed in the sauna room or nearby. The WiFi upgrade can control all aspects of your sauna from your smart device.  NOTE: IF you select the Harvia Xenio WiFi-enabled Panel, you get the Xenio Digital Panel too

For safety, this heater is designed with a 60-minute automatic shut-off feature and will NOT heat if items are placed on top of it. Compare 8kW sauna heaters with WiFi-enabled remote. HSPE80U1M. Minimum Room Height: approx. 75 inches

$1,595

  • Volts / Phase

    Omit Control

    This Heater Requires Controls
    We only offer this option IF you've already been shipped controls OR you are just replacing the heater. Please confirm above that you're omitting the control

    Control Options

    Click the control below to read the highlights

    $935

    $1240

    $770

    $846

    $923

    $795

    $795

    $413

    $375

    $308

    F-2 Control requires additional items: Contactor Box (depends on electrical phase) + 24 Hr Timer (Analog or Digital) as per below

    ❯ Control Highlights

    • Harvia Fenix FX30 Sauna Heater Control

      $935
        Harvia Fenix FX30 Sauna Heater Control
        • Operation: Wi-Fi-enabled and digital control panel
        • Installation: Install INSIDE or OUTSIDE the sauna
        • Capacity: Controls heaters up to 7 kW (at 240V) or up to 10.5 kW (at 208V)
        • Glass Touchscreen: Features a premium, high-gloss 4.3" responsive digital display
        • Heat Resistant: Resists intense heat and high moisture levels (up to approx. 36")
        • Easy to Read: Clearly displays active temperatures, targets and remaining session time
        Temperature Range: Operates within 104–194°F (40–90°C) Specifications: Dimensions are roughly 3.4″W x 1″D x 4.4″H Warranty: Limited 1-year warranty for both residential and commercial use

      • * LIFETIME LICENSE IS ONLY $99 *

        Note to Customer: Activating the MyHarvia app on your phone requires a $99 lifetime license fee (covers the whole household). Charged when you connect.

        ❯ License Agreement

        Check the box to read FULL details

        License Details & Features

        The $99 fee associated with the Harvia Fenix FX series sauna control unit is for a one-time, lifetime software upgrade license to unlock the advanced "Control" tier features in the MyHarvia 2 app. 
        • Cost: One-time $99 lifetime license fee.
        • Coverage: Covers the entire household with unlimited user invites under one license.
        • Core Tier (Free): Provides local functionality, basic status tracking, and basic control panel operations.
        • Control Tier ($99): Unlocks full remote access to start, stop, and schedule the sauna from anywhere.
        • Trial: New Fenix systems include a 3-month free trial of the Control tier features.
        • Purchase: The license is purchased directly inside the mobile app store. No extra hardware is required.

    ❯ Control Highlights

    • Harvia Fenix FX30C Sauna Heater Control

      $1,420
        Harvia Fenix FX30 Sauna Heater Control
        • Operation: Wi-Fi-enabled and digital control panel
        • Installation: Install INSIDE or OUTSIDE the sauna
        • Capacity: Controls heaters up to 7 kW (at 240V) or up to 10.5 kW (at 208V)
        • Glass Touchscreen: Features a premium, high-gloss 4.3" responsive digital display
        • Heat Resistant: Resists intense heat and high moisture levels (up to approx. 36")
        • Easy to Read: Clearly displays active temperatures, targets and remaining session time
        Temperature Range: Operates within 104–194°F (40–90°C) Specifications: Dimensions are roughly 3.4″W x 1″D x 4.4″H Warranty: Limited 1-year warranty for both residential and commercial use

    ❯ Control Highlights

    • Harvia Fenix FX45 Sauna Heater Control

      $1,240
        Harvia Fenix FX30 Sauna Heater Control

        NOTE: When connecting the MyHarvia app to the FX45 controller for the first time, you will billed $99 licensing fee to Harvia (one-time charge)

        • Operation: Wi-Fi-enabled and digital control
        • Installation: Install inside or outside the sauna
        • Capacity: Controls heaters up to 11 kW (at 240V) or up to 15 kW (at 208V)
        • Glass Touchscreen: Features a premium, high-gloss 4.3" responsive digital display
        • Heat Resistant: Resists intense heat and high moisture levels (up to 36")
        • Easy to Read: Clearly displays active temperatures, targets and remaining session time

        Temperature Range: Operates within 104–194°F (40–90°C) Specifications: Dimensions are roughly 3.4″W x 1″D x 4.4″H Warranty: Limited 1-year warranty for both residential and commercial use

      • * LIFETIME LICENSE IS ONLY $99 *

        Note to Customer: Activating the MyHarvia app on your phone requires a $99 lifetime license fee (covers the whole household). Charged when you connect.

        ❯ License Agreement

        Check the box to read FULL details

        License Details & Features

        The $99 fee associated with the Harvia Fenix FX series sauna control unit is for a one-time, lifetime software upgrade license to unlock the advanced "Control" tier features in the MyHarvia 2 app. 
        • Cost: One-time $99 lifetime license fee.
        • Coverage: Covers the entire household with unlimited user invites under one license.
        • Core Tier (Free): Provides local functionality, basic status tracking, and basic control panel operations.
        • Control Tier ($99): Unlocks full remote access to start, stop, and schedule the sauna from anywhere.
        • Trial: New Fenix systems include a 3-month free trial of the Control tier features.
        • Purchase: The license is purchased directly inside the mobile app store. No extra hardware is required.

    ❯ Control Highlights

    • Xenio CX-30 WiFi App / Digital Control + Contactor

      $770
        harvia xenio cx30 sauna control panel The Harvia Xenio CX30 is a modern, digital touchscreen sauna control unit designed to manage sauna heaters up to 10.5 kW (or up to 11 kW depending on electrical configuration). Available in both standard and Wi-Fi-enabled models, it offers real-time adjustments and can be installed inside or outside the sauna room

      • Sensor / Data Cable Options

        Control heater via wall-mounted digital control panel ONLY

        INCLUDES: Digital Controller, Power Relay Box, Sensor (12ft wire) and Data Cable (16ft cable)

        The manufacture warns that the contactor box (provided) can NOT freeze
        In some site conditions, dew can accumulate inside the box with outdoor saunas. If the dew freezes, it can prevent the contactor from working. If you're ordering an outdoor sauna kit, the standard sensor extension kit and control extension cable are perfectly fine.

        ❯ Sensor Extension Kit

        Includes Sensor with Terminal Strip

        ❯ Control Extension Cable

        IMPORTANT: Data cables can NOT be spliced

    ❯ Control Highlights

    • Xenio CX-45 WiFi App + Digital Control + Contactor

      $923
        harvia xenio cx30 sauna control panel
        • Control sauna temperature, humidity, lighting and ventilation
        • Advanced functions make it easier to use the sauna daily and give you many new options, e.g., select the time when you want to go in the sauna
        • IF WiFi-enabled, you'll always see your sauna’s status on your phone!
        • Delay setting:  10 min – 12 hrs / Timer has 60 min run time then expires
        • Operating temperature range 104-194°F / Displays °F or °C

      • Sensor / Data Cable Options

        Control heater via wall-mounted digital control panel ONLY

        INCLUDES: Digital Controller, Power Relay Box, Sensor (12ft wire) and Data Cable (16ft cable)

        The manufacture warns that the contactor box (provided) can NOT freeze
        In some site conditions, dew can accumulate inside the box with outdoor saunas. If the dew freezes, it can prevent the contactor from working. If you're ordering an outdoor sauna kit, the standard sensor extension kit and control extension cable are perfectly fine.

        ❯ Sensor Extension Kit

        Includes Sensor with Terminal Strip

        ❯ Control Extension Cable

        IMPORTANT: Data cables can NOT be spliced

    ❯ Control Highlights

    • Xenio CX-30C Virta Combi Only | Digital Control + Contactor w/ WiFi App

      Original price was: $1,208.Current price is: $846.

      • Sensor / Data Cable Options

        Control heater via wall-mounted digital control panel ONLY

        INCLUDES: Digital Controller, Power Relay Box, Sensor (12ft wire) and Data Cable (16ft cable)

        The manufacture warns that the contactor box (provided) can NOT freeze
        In some site conditions, dew can accumulate inside the box with outdoor saunas. If the dew freezes, it can prevent the contactor from working. If you're ordering an outdoor sauna kit, the standard sensor extension kit and control extension cable are perfectly fine.

        ❯ Sensor Extension Kit

        Includes Sensor with Terminal Strip

        ❯ Control Extension Cable

        IMPORTANT: Data cables can NOT be spliced

    ❯ Control Highlights

    • Xenio CX-170 WiFi App+ Digital Control + Contactor

      $795

      • Sensor / Data Cable Options

        Control heater via wall-mounted digital control panel ONLY

        INCLUDES: Digital Controller, Power Relay Box, Sensor (12ft wire) and Data Cable (16ft cable)

        The manufacture warns that the contactor box (provided) can NOT freeze
        In some site conditions, dew can accumulate inside the box with outdoor saunas. If the dew freezes, it can prevent the contactor from working. If you're ordering an outdoor sauna kit, the standard sensor extension kit and control extension cable are perfectly fine.

        ❯ Sensor Extension Kit

        Includes Sensor with Terminal Strip

        ❯ Control Extension Cable

        IMPORTANT: Data cables can NOT be spliced

    ❯ Control Highlights

    ❯ Control Highlights

    • Finlandia F-1T Sauna Heater External Controls

      Original price was: $590.Current price is: $413.

        F-1T sauna heater controls

        • Simple external ANALOG sauna heater controller with a 60 minute timer
        • Wall Mounted
        • Heat indicator light
        • Thermostat Heat Control
        • On/Off switch for the interior light (not dimmable)
         

        For use with FIN-30, FIN-45 and FIN-60 single phase heaters. No additional relay power is required

    ❯ Control Highlights

    • Finlandia F-2T Sauna Heater External Controls

      Original price was: $536.Current price is: $375.
        Finlandia F-2T sauna heater controls

        The Finlandia F-2T analog control is ideal for larger sauna heaters (8kW+), featuring a 60-minute timer, thermostat, light switch, and indicator light. It is specifically designed for FIN and Club heater models, requiring a separate FX contactor for operation.

        Includes a 60-minute timer, adjustable thermostat, and built-in light switch (ON/OFF only, not a dimmer). Flush-mounts on the wall outside the sauna room.

    ❯ Control Highlights

    • Finlandia F-2 Sauna Heater External Control

      Original price was: $392.Current price is: $308.
        NOTE:  The F-2 control can only be used when an attendant is on duty during hours of operation. Also requires the FX402 contactor power unit.
        F-2 Heater Controls Panels > Finlandia External Controls > FIN-F-2T

        For use with a separate 24 hour time clock in commercial settings when the Sauna is to be on for an extended time

        • Simple external control with a on/off switch for the heater (24 Hr timer required and included)
        • Thermostat
        • On/off switch for the interior light

        F-2 control does NOT include a 60 minute timer. Use the 24HTC with the F-2 wall control and proper contactor in commercial settings where the Sauna will be on all day and shut off at night.  NOTE:  An attendant must be on duty during hours of operation.

    ❯ RELAY BOX REQ w/ F-2T and 1 Phase

    • Finlandia Contactor FX402

      Original price was: $275.Current price is: $197.
        Finlandia FX402 contactor power relay box

        Contactor FX402 is a REQUIRED ITEM for use with SINGLE PHASE sauna heaters with the F-2 or F-2T Controls

        Finlandia FX402 CONTACTOR is the dedicated power-switching module that lets these higher-output sauna heaters operate safely under the control of an F-2T panel. Acting as a heavy-duty relay, the FX402 takes on the full 240V heater load so the wall control can work at low stress while still delivering reliable on/off and timed operation. Its robust contact set is engineered for frequent cycling in warm, humid equipment spaces, helping prevent arcing and premature wear that could lead to nuisance trips or failures.

        Works With:

        • Finlandia Sauna Heaters: 3kW, 4.5kW, 6kW and 8kW
        • Harvia Cilindro Sauna Heaters: 6kW, 8kW
        • Harvia Virta & Combi Sauna Heaters: 6kW, 8kW
        • Club Heaters: 10kW, 12kW, 15kW

    ❯ RELAY BOX REQ w/ F-2T and 3 Phase

    • Finlandia FX404 Contactor Power Relay Box

      Original price was: $338.Current price is: $237.
        Finlandia FX402 contactor power relay box

        REQUIRED ITEM for use with SINGLE PHASE sauna heaters 9kW and above and the F-2T Controls

        Finlandia FX404 CONTACTOR is engineered to handle the substantial load of 9kW and larger CLUB, HPC, and HL models, this contactor isolates heavy current from the wall control, reducing wear on switches and electronics while providing clean, reliable on/off operation. Its robust construction is designed for the elevated temperatures and humidity typical of sauna equipment spaces, helping prevent arcing, overheating, and premature failure

    ❯ RELAY BOX REQUIRED w/ F-2T or F-2 Controls and 3 Phase

    • Finlandia FX303 Relay Contactor Box

      Original price was: $275.Current price is: $197.
        FX404 Cover / Contactor Relay Box

        Contactor for FIN Series 3-phase heaters with F-2 or F-2T Controls

        The Finlandia FX303 Contactor is designed for use with FIN Heaters at 208V/3PH with F-2T and F-2 Controls.

        Model: FX303 / SKU: FX303 For use with all Finlandia FIN 3kW, 4.5kW, 6kW (208V / 3-phase) Heater. Models: FIN-45-3, FIN-60-3, FIN-80-3 heaters and F-2T Control NOTE: A 3-phase site requires this FX303 Relay Contactor Box

    ❯ RELAY BOX REQ w/ F-2T and 3 Phase

    • Finlandia FX503 Relay Contactor Box

      Original price was: $250.Current price is: $195.
        FX404 Cover / Contactor Relay Box
        • The Finlandia FX503 Relay Contactor Box is an essential external power unit engineered to manage high electrical loads explicitly for 208V, 3-phase electrical setups, over 8kW (Club 10, 12, 15 models)
        • The FX503 contactor box must be paired with compatible Finlandia/Harvia components to operate correctly. Required when operating the above heaters with traditional analog F-2T (with a 60-minute timer) or F-2 (simple on/off) wall-mounted control panels.
        • Measuring 6" W x 8" H x 4" D. It can be mounted anywhere outside the sauna room, using either surface or flush mounting.

    Choose Your Type

    ❯ Timer

    • 24 Hour Sauna Timer Analog 24HTC-T101

      $190

        Finlandia 24HTC-T101 is a 24-Hour time clock for use with FIN model heaters using the F-2 control and appropriate FX contactor

        Analog 24 Hour Time Clock

        • The Finlandia 24HTC-T101 is a versatile 24-hour analog time clock programmed for DAILY ON/OFF Times ONLY. See the 24 Hour Sauna Timer Digital 24H7D options IF you need 7 day programming.
        • Allows you to program your sauna to heat up automatically, ensuring it’s ready whenever you are, any day of the week.
        • For use with all CLUB series sauna heaters

    ❯ 24H Timer

    • 24 Hour Sauna Timer Analog 24HTC-T104

      $190
        Analog 24 Hour Time Clock

        Finlandia 24HTC-T104 is a 24-Hour time clock for use with FIN model heaters using the F-2 control and appropriate FX contactor

        • The Finlandia 24HTC-T104 is a versatile 24-hour analog time clock programmed for DAILY ON/OFF Times ONLY. See the 24 Hour Sauna Timer Digital 24H7D options IF you need 7 day programming.
        • Allows you to program your sauna to heat up automatically, ensuring it’s ready whenever you are, any day of the week.
        • For use with all FIN series sauna heaters

    ❯ 24H Timer

    • 24 Hour Sauna Timer Digital 24H7D-1705

      $391

        24 Hour Sauna Timer

        Finlandia 24HTC-T101 is a 24-Hour time clock for use with CLUB model heaters using the F-2 control and appropriate FX contactor

        • The Finlandia 24HTC-T101 is a versatile 24-hour, 7-day digital time clock designed to give you complete control over your sauna schedule.
        • Allows you to program your sauna to heat up automatically, ensuring it’s ready whenever you are, any day of the week.
        • For use with all CLUB series sauna heaters

    ❯ 24H Timer

    • 24 Hour Sauna Timer Digital 24H7D-1725

      $435

        24 Hour Sauna Timer

        Finlandia 24HTC-T101 is a 24-Hour time clock for use with CLUB model heaters using the F-2 control and appropriate FX contactor

        • The Finlandia 24HTC-T101 is a versatile 24-hour, 7-day digital time clock designed to give you complete control over your sauna schedule.
        • Allows you to program your sauna to heat up automatically, ensuring it’s ready whenever you are, any day of the week.
        • For use with all CLUB series sauna heaters

  • Rocks Included

    • lbs

    ❯ Stones

    4 boxes required for the 110 lbs rock capacity
    Best to NOT packs rocks too tight. Loose is best to promote good air flow!

    • Harvia Spirit Round Sauna Heater Stones

      1-2″ Round Sauna Heater Stones

      $65

  • Click on the image to select the guard rail

    The F-2 Controls is a combination of: Control, a Contactor box and a 24Hr Timer (as per below)

    • Sauna Control Junction Box | Rough Out

      $100

      Sauna Control Junction Box for wall-mounted sauna heater controls

      Ready-to-install junction box for external sauna heater controls.  Sometimes called Rough Out / Rough In Box

      Makes sauna heater control installation easier

      Required for our Modular DIY Sauna Kits! IF you chose one of the controllers below

      Sauna Control Junction Box INCLUDES

      • Cedar housing box / A perfect fit for F-1T, F-2, F-2T and SC-9 series control units
        Rough out box fits controllers sized: 3¾" W x 9¼" H (sometimes called a Rough-in Box)
      • Pre-drilled holes
      • 10 feet of conduit / Deselect conduit if NOT needed

      Your electrician will install power and sensor wires

      • CONDUIT

        If you don't need conduit, deselect

    Spirit Guard Rail

    Guard Rail

    Select the button to read more about the Access Cover

    • Harvia Spirit Safety Rail Guard SP60/90 black

      $267

        Harvia Spirit Safety Rail

        • Provides a protective barrier around the heater without occupying valuable floor space
        • Mount guard rail at your preferred height
        • Defines the hot zone around the heater
        • Stylish Birch surface delivers a comfortable touch
        • Multiple railings are possible

    Control Cover

    • Access Control Rain Cover

      $78

        access control rain cover dims

        access control rain cover examplesPlastic Rainproof Transparent Shield Weatherproof Shell

        • Durable PC Material: Made of high-quality PC plastic material, this product has excellent durability and impact resistance, effectively protecting your sauna control panel
        • Easy access to your control panel from underneath
        • Waterproof Design: Specifically designed to be rainproof, this cover can effectively prevent rainwater hitting your sauna control panel
        • Easy to install, use a screwdriver to attach the rain cover to the wall with screws

        Product Dimensions ‎7.1 x 5.9 x 4.7 inches

      • * PARTS RETURN POLICY *

        All parts purchased have a 30 day warranty and return window.
        Additionally, there will be a 20% restocking fee on all returns.

        ❯ Policy Agreement

  • Application

    Rough-in Cedar Control Box & Conduit

    ✱ External heater controls are best installed in a pre-made box — makes wiring & installation easy for an electrician

    Our typical Modular DIY Sauna Kit uses 3 or 4 conduits:

    1. Sauna heater
    2. Interior wall light
    3. Light switch ✱
    4. External heater controls, wall-mounted (outside the sauna)

    ✱ The external wall control (F-1T, F-2T, SC series) can operate one light, so you do NOT necessarily need a separate conduit for a light switch, too. IF you kept the default 3 conduit options in the Modular DIY Sauna Kit, then you may want to edit your sauna kit's options via the CART Page.

    However to dim the lights, then you MUST control them with a separate dimmer switch. External controllers can NOT dim the lights, only ON/OFF.

    • Modular Application | Heavy Wall-Mounted Heater

      $300

      Modular Application | Heavy Wall-Mounted Heater with WiFi-enabled controls

      Hanging a HUUM Drop or a Harvia Spirit into a Cedarbrook PreFAB Modular Kit requires some extra work

      • Reinforce the walls
      • Rework the venting
      • Set the sensor
      • Conduit for control panel
SKU HSPE80U1M Categories , Tags , , , , Brand:

pdf document icon

Here are some sample screens of the MyHarvia app for Xenio WiFi-enabled Harvia sauna heaters:

MyHarvia Sauna App
MyHarvia Sauna App temperature
MyHarvia Sauna App Login
MyHarvia Sauna App Login
MyHarvia Sauna App Device Settings
MyHarvia Sauna App Device Settings
MyHarvia Sauna App New Program
MyHarvia Sauna App New Program
MyHarvia Sauna App Date Time Set
MyHarvia Sauna App Date Time Set

Harvia Spirit 6, 8 & 9kW Sauna Heater Installation Manual

Mounting Instructions

  • Wall studs should be placed 4 9/16″ apart (on center) per image below
Harvia Spirit Mounting Diagram
Harvia Spirit Mounting Diagram

Additional information

Weight 30 lbs
Dimensions 31 × 17 × 15 in

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