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Harvia 25 L Chimney Water Heater for Wood-Burning Sauna Stoves

by Harvia
SKU: S104107
$1,795.00
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HARVIARetailerFamily ownedChristchurch, NZ
New

Harvia 25 L Chimney Water Heater for Wood-Burning Sauna Stoves

by Harvia
SKU: S104107
$1,795.00

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Premium Cedar

Regarded as the best wood in the world for saunas — we never compromise on quality.

INCLUDED WITH YOUR PURCHASE

10-Year Limited Warranty

10
YEAR Limited Warranty

What's covered

  • Structural Warranty (Indoor Saunas) — 10 years
  • Internal Structural Warranty (Outdoor Saunas) — 7 years
  • Exterior Structural Warranty (Outdoor Saunas) — 5 years
  • Heater & Electrical Componentry Warranty — 2 years

Warranty applies to manufacturing defects under normal residential use. Commercial warranty terms vary — see the Warranty Section.

Warranty claim or question? Contact our team
Product ManualGuides and manuals for this product
3 PDFs
PDF Man-harvia-wp250ld-legend-water-heater PDF · opens in a new tab PDF Man-harvia-wp250ld-dimensions PDF · opens in a new tab PDF Man-harvia-thermio-wp250th-water-heater PDF · opens in a new tab
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Description

Harvia 25 L Chimney Water Heater for Wood-Burning Sauna Stoves

Hot water in the sauna without plumbing. These Harvia tanks sit on the stove's flue, with the smoke pipe running straight through the water, so 25 litres heats up while the fire burns. Use it for washing down, rinsing or a warm bucket for löyly. The tap mounts separately on a wall, bench or shelf, away from the hot tank, so it's safe to use.

Choose your model

Legend 25 L (WP250LD) Made for Harvia Legend stoves. The front is stacked with stones to match the Legend look, and you can throw water on them for extra steam
Thermio 25 L (WP250TH) A compact stainless tank for other Harvia stoves with a Ø115 mm flue, such as the M3, M3 SL and Pro 20

Good to know

  • Fits between the stove and the Harvia WHP1500 chimney (Ø115 mm)
  • Always fill with water before lighting the stove
  • Follow Harvia's safety & installation manual 
Specifications
Legend 25 L Thermio 25 L
Harvia code WP250LD WP250TH
Capacity 25 L 25 L
Dimensions 360L*360D*910H mm 360L*280D*450H mm
Weight 10 kg (without stones) 7 kg
Flue diameter Ø115 mm Ø115 mm
Suits Harvia Legend stoves Harvia M3 / M3 SL and other Ø115 mm Harvia stoves
Availability

Availability Overview:

  • In Stock = Located in New Zealand for immediate dispatch
  • Out of Stock = Currently unavailable due to supplier shortages
  • Backordered = 4–6 weeks Delivery
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Guides & research

Learn more

View all guides
BlogSauna Stones: Why Quality Matters and When to Replace ThemSaunaHow to Know What Size and Style Heater to Use in Your SaunaFull Spectrum SaunaRed Cedar vs Canadian Hemlock: Which Wood Is Best for Your Sauna?
Description

Harvia 25 L Chimney Water Heater for Wood-Burning Sauna Stoves

Hot water in the sauna without plumbing. These Harvia tanks sit on the stove's flue, with the smoke pipe running straight through the water, so 25 litres heats up while the fire burns. Use it for washing down, rinsing or a warm bucket for löyly. The tap mounts separately on a wall, bench or shelf, away from the hot tank, so it's safe to use.

Choose your model

Legend 25 L (WP250LD) Made for Harvia Legend stoves. The front is stacked with stones to match the Legend look, and you can throw water on them for extra steam
Thermio 25 L (WP250TH) A compact stainless tank for other Harvia stoves with a Ø115 mm flue, such as the M3, M3 SL and Pro 20

Good to know

  • Fits between the stove and the Harvia WHP1500 chimney (Ø115 mm)
  • Always fill with water before lighting the stove
  • Follow Harvia's safety & installation manual 
Specifications
Legend 25 L Thermio 25 L
Harvia code WP250LD WP250TH
Capacity 25 L 25 L
Dimensions 360L*360D*910H mm 360L*280D*450H mm
Weight 10 kg (without stones) 7 kg
Flue diameter Ø115 mm Ø115 mm
Suits Harvia Legend stoves Harvia M3 / M3 SL and other Ø115 mm Harvia stoves
Availability

Availability Overview:

  • In Stock = Located in New Zealand for immediate dispatch
  • Out of Stock = Currently unavailable due to supplier shortages
  • Backordered = 4–6 weeks Delivery