Harvia WP500 13.2 Gallon Stainless Steel Sauna Water Heater
Harvia
- Description
- What's Included
- Required to Operate
- Product Specifications
- Installation & Use Notes
- FAQs
- Downloads
The Harvia WP500 is a 50 liter (13.2 gallon) stainless steel water heater cauldron with a cover and a removable inner vessel, heated by the flue of a Harvia wood-burning sauna stove.
The WP500 is a 50 liter stainless steel cauldron with a cover that sits in the flue path of a Harvia wood-burning sauna stove and heats wash water off the same fire that is heating the room. In a sauna with no plumbed hot water it is the difference between a proper wash-down and a cold bucket.
- Inner cauldron easily removed for cleaning
- 50 liter (13.2 US gal) capacity
- Stainless steel with a fitted cover
- Heats from the existing wood stove flue — no separate fuel or power
Cauldron Water Stove
These are not included. You need them before the sauna will run.
StoveA Harvia wood-burning sauna stove and the chimney connection components for it.
| Harvia Part Number | WP500 |
| Color / Finish | Stainless Steel |
| Material | Steel |
| Dimensions (W × D × H) | 17.1" (434mm) × 19.7" (500mm) × 30.3" (770mm) |
| Weight (Empty) | 79.4 lbs (36 kg) |
| Installation | Floor Mount |
| Certification | CE, EAC |
| Warranty | 2 years (consumer use); 1 year (commercial use) |
| Ships | LTL freight, curbside |
| Made In | Finland |
Harvia lists this model with CE, EAC marks. These are the European and Eurasian conformity marks, not a UL or ETL listing for North America — confirm requirements with your building department and insurer.
- The cauldron is heated by the flue of a Harvia wood-burning stove. Never fire the stove with the vessel empty.
- This is an LTL freight item. It arrives curbside on a pallet and the carrier calls to book a window — have two people and a pallet jack or dolly ready, and note any damage on the delivery receipt before you sign.
How is the Harvia WP500 heated?
By the flue of a Harvia wood-burning sauna stove. It has no element and no electrical supply — the same fire that heats the room heats the water.
Can the WP500 be fired empty?
No. Never light the stove with the vessel empty. The inner cauldron lifts out for cleaning and the fire chamber is replaceable.
Is the Harvia WP500 UL or ETL listed?
No. Harvia lists it with CE, EAC marks only — the European and Eurasian conformity marks, not a North American listing. Check with your building department and insurer before you install it.
Choose options
- Description
- What's Included
- Required to Operate
- Product Specifications
- Installation & Use Notes
- FAQs
- Downloads
The Harvia WP500 is a 50 liter (13.2 gallon) stainless steel water heater cauldron with a cover and a removable inner vessel, heated by the flue of a Harvia wood-burning sauna stove.
The WP500 is a 50 liter stainless steel cauldron with a cover that sits in the flue path of a Harvia wood-burning sauna stove and heats wash water off the same fire that is heating the room. In a sauna with no plumbed hot water it is the difference between a proper wash-down and a cold bucket.
- Inner cauldron easily removed for cleaning
- 50 liter (13.2 US gal) capacity
- Stainless steel with a fitted cover
- Heats from the existing wood stove flue — no separate fuel or power
Cauldron Water Stove
These are not included. You need them before the sauna will run.
StoveA Harvia wood-burning sauna stove and the chimney connection components for it.
| Harvia Part Number | WP500 |
| Color / Finish | Stainless Steel |
| Material | Steel |
| Dimensions (W × D × H) | 17.1" (434mm) × 19.7" (500mm) × 30.3" (770mm) |
| Weight (Empty) | 79.4 lbs (36 kg) |
| Installation | Floor Mount |
| Certification | CE, EAC |
| Warranty | 2 years (consumer use); 1 year (commercial use) |
| Ships | LTL freight, curbside |
| Made In | Finland |
Harvia lists this model with CE, EAC marks. These are the European and Eurasian conformity marks, not a UL or ETL listing for North America — confirm requirements with your building department and insurer.
- The cauldron is heated by the flue of a Harvia wood-burning stove. Never fire the stove with the vessel empty.
- This is an LTL freight item. It arrives curbside on a pallet and the carrier calls to book a window — have two people and a pallet jack or dolly ready, and note any damage on the delivery receipt before you sign.
How is the Harvia WP500 heated?
By the flue of a Harvia wood-burning sauna stove. It has no element and no electrical supply — the same fire that heats the room heats the water.
Can the WP500 be fired empty?
No. Never light the stove with the vessel empty. The inner cauldron lifts out for cleaning and the fire chamber is replaceable.
Is the Harvia WP500 UL or ETL listed?
No. Harvia lists it with CE, EAC marks only — the European and Eurasian conformity marks, not a North American listing. Check with your building department and insurer before you install it.
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FAQ
Ordering & Payment
Are you an authorized dealer?
Yes. We're an authorized dealer for every brand we carry, so your purchase includes the full manufacturer warranty.
Do you offer financing?
Yes. You can pay over time with Shop Pay Installments at checkout on orders up to $30,000. Available plans and rates depend on your order total and approval, and you'll see your options before you pay.
Shipping & Delivery
Where do you ship?
We currently ship within the continental United States only. We don't ship to Alaska, Hawaii or Canada at this time.
How long will my order take?
Orders are processed within 1-2 business days, and orders placed before 2 PM EST start processing the same day. Orders don't process or ship on weekends or holidays, so anything placed after 2 PM on Friday or over the weekend starts processing the next business day. In-stock items usually arrive within 3-9 business days.
Some products are made to order and take longer. When that's the case, the lead time is listed on the product page.
How does freight delivery work?
Larger items ship by freight. Here's what to expect:
- The carrier will call to schedule a delivery window, Monday to Friday
- Someone 18 or older needs to be there to receive and sign for it
- Delivery is curbside, lowered by liftgate to your driveway or nearest accessible spot
- Please double check your phone number at checkout so you don't miss the carrier's call
Installation
Does it come assembled?
It depends on the product. Some items arrive ready to use, while others need assembly. Check the product page for what's included, and download the manual for full setup instructions.
Do I need a professional to install it?
Many products can be set up yourself. For anything involving a natural gas line, hardwired electrical or built-in installation, we recommend a licensed professional and checking your local codes.