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Welcome To Peak Flow Fitness | Chat With An Expert By Texting Or Calling 646-921-5221

Finnish Saunas

Authentic Finnish-style traditional saunas — wood-burning and electric heater systems built to deliver the real Finnish löyly experience: high heat, controlled humidity, premium wood construction.

We're an authorized dealer for Finnish Sauna Builders — the premier US source for traditional Finnish saunas, including indoor cabin systems, outdoor barrel and cabin saunas, and complete sauna heater packages from Harvia (electric and wood-burning).

Choose by installation type:

  • Indoor cabin saunas — built-to-fit interior installations (basements, dedicated wellness rooms)
  • Outdoor barrel saunas — fully assembled or kit-built, weather-resistant Western Red Cedar
  • Outdoor cabin saunas — larger group capacity (4–8 person), full traditional Finnish experience
  • Replacement heaters — Harvia electric (3.5–9 kW) or wood-burning (Cilindro, M-series)

What makes Finnish saunas different:

  • Heat profile — 180°F to 200°F+ (hotter than infrared) with löyly steam from water on heated rocks
  • Wood selection — Western Red Cedar (most common), Nordic Spruce (traditional Finnish), Hemlock (entry-tier)
  • Heater requirements — electric heaters need dedicated 240V circuit; wood-burning needs proper venting
  • Construction — solid kiln-dried wood, mortise-and-tenon joinery, no MDF or veneer

Free shipping on orders over $999, exclusions apply (saunas ship freight — most include curbside delivery; white-glove and installation services available on select models).

Planning a sauna installation? Email support@peakflowfitness.com with your space (indoor vs outdoor, capacity, electrical availability) and we'll spec the right setup.

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Finnish Sauna Builders Harvia Chimney Smoke Pipe WZ11550 115 mm Stainless Steel - Finnish Sauna Builders — exterior view Sold out
$126.00 - $126.00
$126.00
$126.00 - $126.00
$126.00

Harvia Chimney Smoke Pipe WZ11550 115 mm Stainless Steel - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

The Harvia WZ11550 Smoke Pipe is a 115 mm stainless steel smoke pipe engineered for Harvia wood-burning sauna stoves.Key features Durable stainless...

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$126.00 - $126.00
$126.00
$126.00 - $126.00
$126.00
Sold out
Finnish Sauna Builders Harvia Extension For Chimney WHP1000M Mm Black - Finnish Sauna Builders — exterior view Sold out
$633.00 - $633.00
$633.00
$633.00 - $633.00
$633.00

Harvia Extension For Chimney WHP1000M Mm Black - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Extension For Chimney WHP1000M Mm Black The Harvia WHP1000M steel chimney extension made of black powder-coated steel enables you to easily ...

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$633.00 - $633.00
$633.00
$633.00 - $633.00
$633.00
Sold out
Finnish Sauna Builders Harvia Lead-through Flange WZ020115 Stainless Steel - Finnish Sauna Builders — exterior view Sold out
$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00

Harvia Lead-through Flange WZ020115 Stainless Steel - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Why buy your Harvia Lead-through Flange WZ020115 Stainless Steel from Peak Flow Fitness Authorized Finnish Sauna Dealer — Full manufacturer w...

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$78.00 - $78.00
$78.00
$78.00 - $78.00
$78.00
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Finnish Sauna Builders Harvia Rain Cap WZ030115 Stainless Steel - Finnish Sauna Builders — exterior view Sold out
$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00

Harvia Rain Cap WZ030115 Stainless Steel - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Rain Cap WZ030115 Stainless Steel The Harvia WZ030115 rain cap is made of stainless steel. Why buy your Harvia Rain Cap WZ030115 Stainless ...

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$69.00 - $69.00
$69.00
$69.00 - $69.00
$69.00
Sold out
Finnish Sauna Builders Harvia Click Pail And Ladle Set - Finnish Sauna Builders — exterior view
Sold out
$51.60 - $51.60
$51.60
$51.60 - $51.60
$51.60

Harvia Click Pail And Ladle Set - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Click Pail And Ladle Set The set includes a pail & ladle which are designed and manufactured in Finland from recycled materials. The Har...

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$51.60 - $51.60
$51.60
$51.60 - $51.60
$51.60
Sold out
Finnish Sauna Builders Harvia Legend 240 Greenflame Wood Burning Sauna Stove - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend 240 Greenflame Wood Burning Sauna Stove - Finnish Sauna Builders — exterior view
Sold out
$2,776.00 - $2,776.00
$2,776.00
$2,776.00 - $2,776.00
$2,776.00

Harvia Legend 240 Greenflame Wood Burning Sauna Stove - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend 240 Greenflame Wood Burning Sauna Stove The Harvia Legend 240 GreenFlame (240GF) is a premium wood-burning sauna stove engineered for...

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$2,776.00 - $2,776.00
$2,776.00
$2,776.00 - $2,776.00
$2,776.00
Sold out
Finnish Sauna Builders Harvia Spirit SP80E 8KW Sauna Heater - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Spirit SP80E 8KW Sauna Heater - Finnish Sauna Builders — exterior view
Sold out
$1,725.00 - $1,725.00
$1,725.00
$1,725.00 - $1,725.00
$1,725.00

Harvia Spirit SP80E 8KW Sauna Heater - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Spirit SP80E 8KW Sauna Heater The Harvia Spirit electric sauna heater, elevates your sauna sessions by combining the efficiency and design H...

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$1,725.00 - $1,725.00
$1,725.00
$1,725.00 - $1,725.00
$1,725.00
Sold out
Finnish Sauna Builders Harvia Reducing Pipe WZ115120 Stainless Steel - Finnish Sauna Builders — exterior view
Sold out
$75.00 - $75.00
$75.00
$75.00 - $75.00
$75.00

Harvia Reducing Pipe WZ115120 Stainless Steel - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Reducing Pipe WZ115120 Stainless Steel The Harvia WZ115120 adapter pipe is made of stainless steel. Why buy your Harvia Reducing Pipe WZ115...

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$75.00 - $75.00
$75.00
$75.00 - $75.00
$75.00
Sold out
Finnish Sauna Builders Harvia Legend Bucket SASPO100 - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend Bucket SASPO100 - Finnish Sauna Builders — exterior view
Sold out
$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00

Harvia Legend Bucket SASPO100 - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend Bucket  The story of Harvia can be seen in the new Harvia Legend family of sauna accessories. The accessories are an elegant combinat...

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$335.00 - $335.00
$335.00
$335.00 - $335.00
$335.00
Sold out
Finnish Sauna Builders Harvia Legend Clothes Hanger SASPO103 - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend Clothes Hanger SASPO103 - Finnish Sauna Builders — exterior view
Sold out
$198.00 - $198.00
$198.00
$198.00 - $198.00
$198.00

Harvia Legend Clothes Hanger SASPO103 - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend Clothes Hanger The story of Harvia can be seen in the new Harvia Legend family of sauna accessories. The accessories are an elegant c...

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$198.00 - $198.00
$198.00
$198.00 - $198.00
$198.00
Sold out
Finnish Sauna Builders Harvia Spirit Safety Railing - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Spirit Safety Railing - Finnish Sauna Builders — exterior view
Sold out
$259.00 - $259.00
$259.00
$259.00 - $259.00
$259.00

Harvia Spirit Safety Railing - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Spirit Safety Railing The Harvia Spirit Safety Railing, model HSP3M, is an essential accessory for your Harvia Spirit electric stove. Crafte...

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$259.00 - $259.00
$259.00
$259.00 - $259.00
$259.00
Sold out
Finnish Sauna Builders Harvia WL700 26 Pro Protective Sheath (side) - Finnish Sauna Builders — exterior view
Sold out
$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00

Harvia WL700 26 Pro Protective Sheath (side) - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia WL700 26 Pro Protective Sheath (side) The Harvia WL700 protective sheath is designed and approved for wood-heated Harvia wood burning heater...

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$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00
Sold out
Finnish Sauna Builders Harvia Legend Smoke Pipe Cover - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend Smoke Pipe Cover - Finnish Sauna Builders — exterior view
Sold out
$372.00 - $372.00
$372.00
$372.00 - $372.00
$372.00

Harvia Legend Smoke Pipe Cover - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend Smoke Pipe Cover The Harvia WL300 smoke pipe guard is designed for a wood-heated Legend stove, which should be equipped with a stone-...

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$372.00 - $372.00
$372.00
$372.00 - $372.00
$372.00
Sold out
Finnish Sauna Builders Harvia Steel Accessories Set SA007 - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Steel Accessories Set SA007 - Finnish Sauna Builders — exterior view
Sold out
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00

Harvia Steel Accessories Set SA007 - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Steel Accessories Set The Harvia Black Sauna Accessories Set includes a black stainless steel bucket, ladle, and an easy-to-read Thermo/hygr...

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$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
Sold out
Finnish Sauna Builders Harvia Sandglass Lux Timer - Finnish Sauna Builders — exterior view
Sold out
$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00

Harvia Sandglass Lux Timer - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

The Harvia Sandglass Lux Timer brings a dash of luxury to your sauna — a stylish, decorative sand timer with real character.Key features Sand flows...

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$59.00 - $59.00
$59.00
$59.00 - $59.00
$59.00
Sold out
Finnish Sauna Builders Harvia Legend Ladel SASPO101 - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend Ladel SASPO101 - Finnish Sauna Builders — exterior view
Sold out
$134.00 - $134.00
$134.00
$134.00 - $134.00
$134.00

Harvia Legend Ladel SASPO101 - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend Ladel The story of Harvia can be seen in the new Harvia Legend family of sauna accessories. The accessories are an elegant combinatio...

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$134.00 - $134.00
$134.00
$134.00 - $134.00
$134.00
Sold out
Finnish Sauna Builders Harvia WL750 26 Pro Protective Sheath (side & Rear) - Finnish Sauna Builders — exterior view
Sold out
$531.00 - $531.00
$531.00
$531.00 - $531.00
$531.00

Harvia WL750 26 Pro Protective Sheath (side & Rear) - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia WL750 26 Pro Protective Sheath (side & Rear) The Harvia WL750 protective sheath is designed and approved for wood-heated Harvia wood bur...

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$531.00 - $531.00
$531.00
$531.00 - $531.00
$531.00
Sold out
Finnish Sauna Builders Harvia Water Heater For Harvia Legend - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Water Heater For Harvia Legend - Finnish Sauna Builders — exterior view
Sold out
$960.00 - $960.00
$960.00
$960.00 - $960.00
$960.00

Harvia Water Heater For Harvia Legend - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

The Harvia Water Heater for Legend stoves quickly heats bathwater directly from your wood-burning Legend stove — the finishing touch that crowns a ...

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$960.00 - $960.00
$960.00
$960.00 - $960.00
$960.00
Sold out
Finnish Sauna Builders Harvia WL800 36/duo Protective Sheath (side) - Finnish Sauna Builders — exterior view
Sold out
$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00

Harvia WL800 36/duo Protective Sheath (side) - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia WL800 36/duo Protective Sheath (side) The Harvia WL800 protective sheath is designed and approved for wood-heated Harvia wood burning heater...

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$234.00 - $234.00
$234.00
$234.00 - $234.00
$234.00
Sold out
Finnish Sauna Builders Harvia Wall Sauna Heater 6KW with Built-In Controls - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Wall Sauna Heater 6KW with Built-In Controls - Finnish Sauna Builders — exterior view
Sold out
$1,620.00 - $1,620.00
$1,620.00
$1,620.00 - $1,620.00
$1,620.00

Harvia Wall Sauna Heater 6KW with Built-In Controls - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Wall Sauna Heater 6KW with Built-In Controls The Harvia Wall 6kW 240V Electric Sauna Heater with built-in controls is a premium solution for...

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$1,620.00 - $1,620.00
$1,620.00
$1,620.00 - $1,620.00
$1,620.00
Sold out
Finnish Sauna Builders Harvia 20 Pro/sl/duo/boiler/sl Boiler Protective Sheath (side & Rear) - Finnish Saun... — exterior view
Sold out
$498.00 - $498.00
$498.00
$498.00 - $498.00
$498.00

Harvia 20 Pro/sl/duo/boiler/sl Boiler Protective Sheath (side & Rear) - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia 20 Pro/sl/duo/boiler/sl Boiler Protective Sheath (side & Rear) Harvia wood heater protective shields, for side and rear. Use for Harvia ...

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$498.00 - $498.00
$498.00
$498.00 - $498.00
$498.00
Sold out
Finnish Sauna Builders Harvia Floor Board Pvc (beige), Width 90 Cm X 15 M / Roll - Finnish Sauna Builders — exterior view
Sold out
$1,800.00 - $1,800.00
$1,800.00
$1,800.00 - $1,800.00
$1,800.00

Harvia Floor Board Pvc (beige), Width 90 Cm X 15 M / Roll - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Why buy your Harvia Floor Board Pvc (beige), Width 90 Cm X 15 M / Roll from Peak Flow Fitness Authorized Finnish Sauna Dealer — Full manufact...

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$1,800.00 - $1,800.00
$1,800.00
$1,800.00 - $1,800.00
$1,800.00
Sold out
Finnish Sauna Builders Harvia WL590 20 Rs Pro/ls Pro Protective Sheath (side & Rear) - Finnish Saun... — interior bench layout
Finnish Sauna Builders Harvia WL590 20 Rs Pro/ls Pro Protective Sheath (side & Rear) - Finnish Sauna Builders — exterior view
Sold out
$539.00 - $539.00
$539.00
$539.00 - $539.00
$539.00

Harvia WL590 20 Rs Pro/ls Pro Protective Sheath (side & Rear) - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia WL590 20 Rs Pro/ls Pro Protective Sheath (side & Rear) The Harvia WL590 protective sheath is designed and approved for wood-heated Harvi...

View full details
$539.00 - $539.00
$539.00
$539.00 - $539.00
$539.00
Sold out
Finnish Sauna Builders Harvia Legend Firewood Basket SASPO102 - Finnish Sauna Builders — interior bench layout
Finnish Sauna Builders Harvia Legend Firewood Basket SASPO102 - Finnish Sauna Builders — exterior view
Sold out
$252.00 - $252.00
$252.00
$252.00 - $252.00
$252.00

Harvia Legend Firewood Basket SASPO102 - Finnish Sauna Builders

Finnish Sauna Builders
Out of stock

Harvia Legend Firewood Basket The story of Harvia can be seen in the new Harvia Legend family of sauna accessories. The accessories are an elegant ...

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$252.00 - $252.00
$252.00
$252.00 - $252.00
$252.00
Sold out