Skip to content
Harvia Pro 20 Duo Steel

Harvia Pro 20 Duo Steel

$3,516.95 - $3,516.95
$3,516.95
$3,516.95 - $3,516.95
$3,516.95
Availability:
20 in stock, ready to be shipped

Free returns on all eligible orders

You have 30 days to request a return. All sale items are final sale.

Description

The Pro 20 Duo Steel combines a through-the-wall sauna heater with a fireplace in the adjacent room, letting you enjoy the fire's warmth on both sides. Its stainless steel exterior and large glass hatch load wood and remove ash from outside the sauna, keeping the bathing space clean, while freeing up interior bench space that would otherwise be taken by the firebox.

Adjustable feet ensure stable installation and precise chimney alignment, and a 115mm top pipe connection supports efficient chimney integration. Requires 40kg (2 × 20kg boxes) of sauna stones and a Harvia North American Chimney Adapter (4" to 6"), both sold separately.

Product Information

  • Through-wall design doubles as a fireplace in the adjoining room
  • Stainless steel exterior with large glass hatch
  • Frees up interior sauna bench space by relocating the firebox
  • 115mm top pipe connection for efficient chimney integration
  • Adjustable feet for stable, precise installation
  • Compatible with a separate chimney-mounted water tank

Technical Information

Model WKPR20DUOS
Heater output 24.1 kW
Sauna room min. 283 cu ft (8 m³)
Sauna room max. 706 cu ft (20 m³)
Stone capacity max. 88 lbs (40 kg)
Dimensions (W x H x D) 17 x 30 x (20+11) in (430 x 760 x (510+280) mm)
Weight 176 lbs (80 kg)
Safety distance, sides/back (masonry) 2 in (50 mm)
Safety distance, sides/back (combustible) 11 7/8 in (300 mm)
Safety distance, front 11 7/8 in (300 mm)
Safety distance, ceiling min. 51 1/8 in (1300 mm)
Smoke outlet diameter 4 1/2 in (115 mm)

Specifications

Weight 188 lbs
Dimensions 32 x 24.5 x 34 in
100% Secure & Flexible Checkout

Secure & Flexible Checkout

Shop with confidence. Every payment is encrypted and protected from start to finish.

Security You Can Trust

Every transaction is encrypted at checkout. We do not store your full card details.

Payment Methods

  • Credit/Debit Cards: Visa, Mastercard, American Express, Discover
  • Express Checkout: Apple Pay, Google Pay
  • Other Options: PayPal, Shopify Payments

Enjoy full protection and flexibility. Your data stays safe, and your shopping stays smooth.

Returns & warranty

Check our Return & Refund Policy

Related categories

Free Shipping

When you spend $50 or more

Here to Help

Get in touch with us 7 days a week

Store Pickup

Pick up your order yourself, for free

Easy Exchanges

Return or exchange within 60 days

FAQ

Orders and Shipping

What is the shipping time?

All shipping times are estimates and are not guaranteed. We work with our vendors to get every order shipped as quickly as possible.

Most orders ship within 5 to 7 business days. Once shipped, delivery typically takes an additional 3 to 10 business days. Shipping times may vary depending on the product and whether it is made to order.

How can I track my order?

Once your order is dispatched, you'll receive a tracking number by email. You can use this to follow your delivery progress online.

How do l change or modify my order?

We can help you modify your order any time before shipment - change an item or your shipping address. Please email us ASAP.

How do l cancel my order?

To cancel a paid order, you will need to email us before the order is shipped. Please note that generally we're not able to stop its transit after it is shipped out. Shipping fees are not refunded after the parcels are shipped out, and returns are based on preference.

Returns and Refunds

How do I request a return or refund?

Simply contact our customer service team with your order number and reason for return. We’ll guide you through the process.

Do l need to pay for return shipping?

The outdoor lifestyle default is that customers will be responsible for all return shipping charges or reconsignment fees caused by customer error, unless otherwise stated on the product page. 

Nearly all of our products have guaranteed warranty policies—meaning that you will 100% get a fully functional, operating product that you paid for without any extra expenses incurred on your end; please see individual product pages for details. 

When will I receive my refund?

Once we receive and inspect the returned item, we’ll process your refund within 3–5 business days. Refunds are issued to your original payment method.

Can I exchange my product instead of a refund?

Yes! If you’d prefer an exchange for a different product or variant, just let us know — we’ll be happy to help.