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Description
The Harvia Pro 20 ES is a 24.1 kW wood-burning sauna stove with a 20 liter water tank at the front. It heats sauna rooms from 283 to 706 cubic feet and comes with sauna stones.
Water tank
The 20 liter front tank is heated by the stove itself, giving you hot water for washing or for ladling onto the stones.
Build
It has a graphite black steel casing with a stainless steel front, and a cast-iron framed glass door so you can see the fire. Adjustable legs help level it on an uneven floor.
Pro 20 ES or Pro 20 LS/RS
The Pro 20 LS/RS has a larger 30 liter tank on the left or right side instead of the front.
Specifications
- Model: WKPR20ESM (WK200ES)
- Output: 24.1 kW
- Room volume: 283 to 706 cubic feet
- Water tank: 20 liters, front mounted
- Casing: graphite black steel with stainless steel front
- Door: cast-iron framed glass
- Legs: adjustable
- Sauna stones included
Related
Browse sauna heaters, or use our sauna size calculator to work out your room volume before choosing an output.
Specifications
| Model | WKPR20ESM (WK200ES) |
|---|---|
| Output | 24.1 kW |
| Room volume | 283 to 706 cubic feet |
| Water tank | 20 liters, front mounted |
| Casing | graphite black steel with stainless steel front |
| Door | cast-iron framed glass |
| Legs | adjustable |
| Details | Sauna stones included |
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.
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.
Reviews
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Manuals and documents
Official Harvia documents for this model. Opens as a PDF.

Why this heater
A 24.1 kW Harvia wood sauna stove with a 20 liter front water tank, for saunas of 283 to 706 cubic feet, with stones.
- 24.1 kW for 283 to 706 cubic feet.
- 20 liter front water tank.
- Glass door shows the fire.
- Adjustable legs and sauna stones included.

Key specs at a glance
The numbers to check before you order. Full details are on the Specifications tab.
Before you buy: what to know
Based on the manufacturer's specs, manuals and our research.
- The Pro 20 ES is 24.1 kW for rooms from 283 to 706 cu ft, with a 20 liter water tank at the front heated by the stove. Stones are included.
- The Pro 20 LS/RS has a larger 30 liter tank on the left or right side instead. Pick based on where you want to reach the water from your bench.
- Clearances to walls, ceiling and benches come from the installation manual, and a wood stove also needs a proper chimney run. Check local code and your insurer before you build around it.
- It usually ships within 1 to 3 business days and arrives in about 5 to 10 business days, so it can be on site before your build is finished.
- 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.
Compare Harvia models
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Harvia Pro 20 SL 24.1kW Through-Wall Wood Sauna Stove
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|---|
Common questions
What size sauna does it heat?
How is it different from the Pro 20 LS/RS?
Are stones included?
Will it sit level on an uneven floor?
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




