Harvia Duo Two-Room Wood-Burning Sauna Stove And Fireplace On Black Sauna Cladding, With Verified Model Kw, Cubic-Foot Coverage, And Dimensions.
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 2
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 3
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 4
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 5
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 6
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 7
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 8
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 9
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 10
Click to enlarge
Expert help that stays with you

Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

Sauna and heater customers also receive free shipping on sauna accessories for life.

Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

Includes

What Is Included

Includes the product and configuration selected above. Hardware, controls, stones, venting, and accessories are not included unless specifically listed.

See How It Fits for required and compatible products.

Technical Specifications

Technical Specifications

Model & Application

Model & Application
Brand

Harvia
Catalog Product

Harvia Duo Fireplace and Wood Sauna Stove Combo
Heater Type

Wood-burning sauna stove
Exact Models

PRO 20 DUO: WKPR20DUOS; PRO 36 DUO: WKPR36DUOS

Sauna Sizing

Sauna Sizing
Sauna Room Volume

PRO 20 DUO: 282-706 CU. FT.; PRO 36 DUO: 494-1271 CU. FT.

Fuel & Venting

Fuel & Venting
Fuel

Wood

Dimensions & Weight

Dimensions & Weight
Heater Dimensions

PRO 20 DUO: 17" W × 20" D × 30" H; PRO 36 DUO: 20" W × 31" D × 32" H

Stone Capacity & Performance

Stone Capacity & Performance
Rated Power

PRO 20 DUO: 24.1; PRO 36 DUO: 31
Stone Capacity

PRO 20 DUO: 88 lbs; PRO 36 DUO: 132 lbs

Included & Required

Included & Required
Required, Not Included

PRO 20 DUO: 88 lbs of Split-Face Sauna Stones (Qty 2 x 44 lbs of 4 to 6 in stones); PRO 36 DUO: 132 lbs of Split-Face Sauna Stones (Qty 3 x 44 lbs of 4 to 6 in stones)

Materials & Finish

Materials & Finish
Construction

Steel with stainless-steel outer casing

Certifications

Certifications
Certifications

CE, EAC

Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

How It Fits

How This Product Fits the System

What it is used for

A wood-burning sauna heater that heats the room and stone mass for traditional löyly. Treat the stove, chimney, floor protection, clearances, combustion air, ventilation, and stones as one installation system.

What to plan

  • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
  • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
  • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
  • Follow the current installation manual and use a qualified installer.

Designed to work with

Model-specific replacements and compatible system components.

Attachments
Gallery
Harvia Duo Two-Room Wood-Burning Sauna Stove And Fireplace On Black Sauna Cladding, With Verified Model Kw, Cubic-Foot Coverage, And Dimensions.
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 2
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 3
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 4
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 5
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 6
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 7
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 8
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 9
Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 10
Click to enlarge

    Harvia Duo Fireplace and Wood Sauna Stove Combo

    The Harvia DUO line is a stunning best-of-both-worlds fireplace and sauna spanning two rooms. It’s the most elegant solution to for through-wall sauna operation.

    Build Your Quote:

    Price range: $2,871.00 through $3,415.00

    Stones
    None "More Than Enough" Stones +$60.00
    Chimney Kit
    None Harvia Black Chimney Kit for Flat Roof +$1,620.00 Harvia Stainless Steel Chimney Kit for Flat Roof +$1,433.00 Harvia Wood Pipe Adapter 4.5" Euro to 6" USA +$116.67
    Water Tank Heater
    None In Chimney Water Tank Heater (all-models) +$635.00
    Harvia Pro Floor Protector

    The Harvia protective bedding is used when a fireplace or stove is installed onto a waterproofed tile or hardwood floor. Made of aluminum-zinc coated steel, painted black.

    None Harvia Protective Bedding +$420.00

    Share your selected heater size and add-ons. Prices and availability are confirmed when the link is opened.

    We added you to this product's waitlist and we'll send you an email when the product is available.

    Leave Waitlist

    This product is currently sold out.

    No worries! Enter your email, and we'll let you know as soon as it's back in stock.

    Zero Interest Payments:

    Buy Now, Pay Later with premium financing packages only available on Sauna Marketplace.

    Pay with HSA/FSA:

    We teamed up with FLEX to make HSA/FSA payments easier than ever.

    Harvia

    What to Expect

    • Compatibility Check

    We look for any issues with your order.

    Same Day

    • ready to ship package Ready to Ship

    Warehouse schedules shipment

    1 Day

    • Freight Shipping

    Our trusted shipping partners will schedule a delivery time and delivery your package to the ground.

    4-14 Days

    • 'Whatever-It-Takes' Support

    Unlimited access to tech support from SaunaMarketplace.com, Bathing Brands, and Harvia.

    Support Details

    This order is fulfilled by Bathing Brands in Chicago.  That means you have full access to their top-knotch customer service and tech support, as well as SaunaMarketplace.com and Harvia support.  We're with you and your contractors until it's operating as it should, no matter what.

    Before your order ships, we provide contact information and reference numbers for each.

    • Warranty 2 Years
    Warranty Docs
    • Setup, Operation, and Maintenance

    Harvia Pro Stoves are built with safety in mind. These manuals and documents will help ensure a safe, great performing heater for years to come.

    Pro 20 Documents

    Manual

    Catalog

    20 Pro Data Sheet

    Harvia 20 Pro Declaration of Performance

    Harvia Pro Safety Sheet

    Pro 36 Documents

    Manual

    Catalog

    Hariva-PRO36-Accessories Hariva-PRO36-datasheet Hariva-PRO36-DOP Hariva-PRO36-Safety Hariva-PRO36-Spare-Parts

    Legend Duo Documents

    Legend Manual

    Declaration of Performance

    Safety Distances

    Datasheet

    Catalog

    Harvia Duo Series: A Fusion of Warmth & Experience

    Introducing the Harvia Legend 2-in-1 Stove & Fireplace Heaters: Crafted for those who seek an unparalleled sauna experience, Harvia’s Legend and Pro wood-burning heaters redefine sauna luxury. With its imposing black steel frame, the heater houses a significant volume of stones, ensuring that even at milder temperatures, there’s an abundance of steam. Remarkably, your steam potential lasts long after the fire dims. The unique design places the Harvia Duo fire chamber outside the sauna room, seamlessly installing the heater through the wall. Embodying modernity, the fire chamber is innovatively structured to distribute combustion air efficiently. This not only optimizes burning but also enhances the heater’s lifespan. The innovative design also allows for a more flexible arrangement of the sauna boards due to the protective distances from the burning wood.
    • Setup, Operation, and Maintenance

    Harvia Pro Stoves are built with safety in mind. These manuals and documents will help ensure a safe, great performing heater for years to come.

    Expert help that stays with you

    Whether you’re choosing one component or planning the whole room, small details can become expensive problems once installation begins. We know the products we sell and the questions to ask early, helping catch mismatched components, overlooked requirements, and installation issues while they are still easy to fix.

    Our job does not end when your order ships. We stay available through installation and beyond. If something needs attention, we stay involved, work the problem, and help see it through.

    We want you to feel good about choosing Sauna Marketplace long after your first session, and confident recommending us to a friend. That standard guides the advice we give, the products we sell, and the way we take care of our customers.

    Sauna and heater customers also receive free shipping on sauna accessories for life.

    Planning a sauna, or need help with one you purchased from us? Our founders have assembled many of the saunas we sell, visited the manufacturers, and use these products every day. New customers and existing Sauna Marketplace sauna and heater owners can Book a Ben consultation.

    Includes

    What Is Included

    Includes the product and configuration selected above. Hardware, controls, stones, venting, and accessories are not included unless specifically listed.

    See How It Fits for required and compatible products.

    Technical Specifications

    Technical Specifications

    Model & Application

    Model & Application
    Brand

    Harvia
    Catalog Product

    Harvia Duo Fireplace and Wood Sauna Stove Combo
    Heater Type

    Wood-burning sauna stove
    Exact Models

    PRO 20 DUO: WKPR20DUOS; PRO 36 DUO: WKPR36DUOS

    Sauna Sizing

    Sauna Sizing
    Sauna Room Volume

    PRO 20 DUO: 282-706 CU. FT.; PRO 36 DUO: 494-1271 CU. FT.

    Fuel & Venting

    Fuel & Venting
    Fuel

    Wood

    Dimensions & Weight

    Dimensions & Weight
    Heater Dimensions

    PRO 20 DUO: 17" W × 20" D × 30" H; PRO 36 DUO: 20" W × 31" D × 32" H

    Stone Capacity & Performance

    Stone Capacity & Performance
    Rated Power

    PRO 20 DUO: 24.1; PRO 36 DUO: 31
    Stone Capacity

    PRO 20 DUO: 88 lbs; PRO 36 DUO: 132 lbs

    Included & Required

    Included & Required
    Required, Not Included

    PRO 20 DUO: 88 lbs of Split-Face Sauna Stones (Qty 2 x 44 lbs of 4 to 6 in stones); PRO 36 DUO: 132 lbs of Split-Face Sauna Stones (Qty 3 x 44 lbs of 4 to 6 in stones)

    Materials & Finish

    Materials & Finish
    Construction

    Steel with stainless-steel outer casing

    Certifications

    Certifications
    Certifications

    CE, EAC

    Use the attached current manual and a qualified installer for final sizing, wiring, clearances, venting, and local-code compliance.

    How It Fits

    How This Product Fits the System

    What it is used for

    A wood-burning sauna heater that heats the room and stone mass for traditional löyly. Treat the stove, chimney, floor protection, clearances, combustion air, ventilation, and stones as one installation system.

    What to plan

    • Size from adjusted sauna volume, including the effect of glass, masonry, and other uninsulated surfaces; do not size from floor area alone.
    • Match the selected model's power or fuel, voltage, phase, circuit, wire, control, stone, and venting requirements before ordering.
    • Treat clearances, ceiling reference planes, ventilation, guarding, floor protection, and service access as one room-layout decision.
    • Follow the current installation manual and use a qualified installer.

    Designed to work with

    Model-specific replacements and compatible system components.

    Attachments
    Gallery
    Harvia Duo Two-Room Wood-Burning Sauna Stove And Fireplace On Black Sauna Cladding, With Verified Model Kw, Cubic-Foot Coverage, And Dimensions.
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 2
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 3
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 4
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 5
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 6
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 7
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 8
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 9
    Harvia Duo Fireplace And Wood Sauna Stove Combo - Image 10
    Click to enlarge

      PLAN THE WHOLE SAUNA

      The room and heater still have to work as one system.

      Start with the room dimensions, then account for glass, masonry, insulation, ceiling height, required clearances, and available electrical service. That is how we move from a product that looks right to a sauna that heats evenly and comfortably.

      Compare sauna heaters

      See electric sauna heaters by output, stone mass, control style, and installation type. Size from adjusted room volume, not floor dimensions alone.

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      Shop complete saunas

      Explore indoor and outdoor saunas when you are planning beyond one component. Starting with the room makes heater size, controls, and accessories easier to get right.

      Explore complete saunas