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Harvia

Harvia Cauldron 50 L Wood-Burning Water Heater

Harvia Cauldron 50 L Wood-Burning Water Heater

A wood-fired 50 liter water heater for washing up in a traditional sauna, with a stainless cauldron that lifts out to clean.

Regular price $2,099.97 USD
Regular price Sale price $2,099.97 USD
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Shipping calculated at checkout.
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Usually ships within 1 to 3 business days and arrives in about 5 to 10 business days.

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Pay over time with Shop Pay Installments at checkout, subject to approval. How financing works · Using HSA/FSA funds

Questions before you buy?Fit, power, delivery or which model. We help before and after your order. Contact us
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Questions on fit, power or delivery? Call or email us. We stay your first contact after delivery, warranty included.

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30-day returns

Request a return within 30 days of delivery. Approved change-of-mind returns carry a 25% restocking fee. Damage is made right. Return policy

Pay over time

Split the cost into monthly payments with Shop Pay Installments, subject to approval. Financing · HSA/FSA

Description

The Harvia Cauldron is a wood-burning water heater that heats 50 liters of water for washing in and around the sauna. It suits a traditional cottage-style sauna, including cabins without electricity.

Build

The inner cauldron is stainless steel and lifts out for cleaning. The fire chamber is lined with vermiculite and is replaceable, and it directs the flames under the cauldron so the water heats quickly and evenly.

Specifications

  • Model: WP500
  • Capacity: 50 liters
  • Fuel: wood
  • Inner cauldron: stainless steel, lifts out for cleaning
  • Fire chamber: vermiculite, replaceable
  • Heating: flames directed under the cauldron

Related

Browse sauna accessories or sauna heaters.

Specifications
ModelWP500
Capacity50 liters
Fuelwood
Inner cauldronstainless steel, lifts out for cleaning
Fire chambervermiculite, replaceable
Heatingflames directed under the cauldron

Specifications from the manufacturer. Dimensions are approximate.

Shipping

We ship to the 48 contiguous U.S. states and Washington, DC. Your shipping cost is calculated at checkout and shown before you pay.

You will get an order confirmation right away and tracking by email when your order ships. Questions about timing for a specific item? Call (945) 280-3243 or email support@restoresuite.com before you order.

Full shipping policy

Delivery

Large items such as saunas, hot tubs and cold plunge tubs usually ship by freight. The carrier contacts you to schedule delivery. Please check the packaging and note any damage on the delivery receipt before you sign, then tell us within 48 hours so we can resolve it for you.

Before delivery day, measure doorways and hallways along the path to the install spot, and confirm the electrical requirement on the Specifications tab.

Warranty

30-day limited warranty against manufacturing defects

If this item has a manufacturing defect within 30 days of purchase, contact us with your order number and a photo or video of the issue and we will make it right.

How warranty support works · Returns policy

What delivery looks like

A cardboard parcel box delivered on a front porch
Arrives by parcel carrier, usually left at your door with tracking emailed when it ships. Example photo of a typical delivery. Your packaging may look different.

Manuals and documents

Official Harvia documents for this model. Opens as a PDF.

Harvia Cauldron stainless water heater with lid and lit wood firebox door

Why this one

A wood-fired 50 liter water heater for washing up in a traditional sauna, with a stainless cauldron that lifts out to clean.

  • Heats 50 liters of water over a wood fire.
  • Stainless steel inner cauldron lifts out.
  • Replaceable vermiculite fire chamber.
  • No electricity needed.
Close-up detail of the Harvia Cauldron 50 L Wood-Burning Water Heater

Key specs at a glance

The numbers to check before you order. Full details are on the Specifications tab.

Capacity
50 liters
Heating
flames directed under the cauldron

Before you buy: what to know

Based on the manufacturer's specs, manuals and our research.

  • The Cauldron heats 50 liters of water with wood, no electricity, for washing in and around the sauna. It suits a cottage-style or off-grid cabin sauna.
  • The stainless inner cauldron lifts out for cleaning, and the vermiculite fire chamber is replaceable, so the parts that see the most heat can be renewed.
  • It is a separate wood-burning appliance, so plan its own flue and clearances from the installation manual alongside your stove.
  • Returns are accepted within 30 days with a 25% restocking fee on unused, unopened items. Work out your room volume first, so the output you order is the right one.

Not sure this is the right fit? Ask us or call (945) 280-3243.

Common questions

How much water does it hold?
50 liters.
Does it need electricity?
No. It is wood-burning.
How do I clean it?
The stainless steel inner cauldron lifts out for cleaning.
Can the fire chamber be replaced?
Yes. The vermiculite fire chamber is replaceable.

Choosing the right setup can be tricky. We are here to help.

Tell us your space, power and how you plan to use it, and we will help you compare models honestly, including whether this one is the right fit.

Why buy from Restore Suite

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We handle your questions, delivery issues and warranty claims with the manufacturer for you.

Honest guidance

Free guides and calculators for sizing, running costs and safety, so you can decide with real numbers. See the research