Harvia Pro 20 LS: a wood sauna stove with an 8 gallon water tank on the left
The Harvia Pro 20 LS is the cottage version of the Pro 20 wood stove, with a fixed 30 liter (about 8 gallon) water tank on its left side that heats wash water from the same fire. Rated at 24.1 kW, it suits saunas from 283 to 706 cubic feet. It stands 30 inches tall, measures 23 inches wide with the tank, and weighs 144 pounds. The steel body is graphite black with a stainless steel front, and a large glass door lets you watch the flames.
You get the stove, the manual, and the warranty. Sauna stones are sold separately, so add the 2 boxes it needs on the page. A chimney is not included, so pick the chimney kit, any extensions, and the adapter to 6 inch US pipe on the page. A floor plate and a bucket and ladle set are optional. Need the tank on the other side? Order the Harvia Pro 20 RS stove instead. The Harvia Pro 20 LS ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
FAQ
Which side is the water tank on?
On the LS model the fixed 30-liter water tank sits on the left side of the stove, heated by the fire as the sauna warms, a setup Harvia describes as perfect for cottage settings. The tank is built in rather than removable, so make sure a left-hand tank suits your bench and door layout.
How big a sauna can the Pro 20 LS heat?
This is a 24.1kW wood stove rated for sauna rooms from 283 to 706 cubic feet. The large amount of stones it holds translates into a hearty amount of steam and heat across that range. Measure your room’s volume and check it against the installation and operation manual before ordering.
How many stones does it need, and where do I get them?
A minimum of 88 lbs. On this page stones are handled through the Required Stones add-on, which supplies two boxes of split-face stones with your order, so the stove and its stones arrive together. How to stack them is covered in the installation and operation manual.
What do I need for the chimney?
The chimney is not in the box. Like Harvia’s other wood-burning sauna stoves, it vents through a flue you assemble for your building: this page’s add-ons include chimney and assembly kits for barrel or flat roofs, 500mm and 1000mm extensions, smoke pipes, and a 4.5 inch Euro to 6 inch USA adapter. Follow the manual and your local codes.
How tall does the sauna room need to be?
The specification table calls for a minimum room height of 81 inches and 52 inches of clearance between the stove and the ceiling. Distances to non-combustible materials are 12 inches at the front and 4 inches at the sides and back; for combustible structures, defer to the installation manual and local codes.
What are the stove's dimensions, and how is it installed?
It is a floor-standing steel stove measuring 30 inches high, 23 inches wide, and 20 inches deep, weighing 144 lbs, finished in graphite black with stainless steel on the front and a large glass door that shows the fire. Position it according to the spec table’s safety distances and the installation manual.
What warranty does it carry?
The stove carries a 2-year warranty. My Cozy Outdoors sells it as an authorized Harvia dealer, and the full Harvia warranty document is linked at the top of this page, so you can review the exact coverage and terms before you order.
Shipping
The weight or packaging of this product requires delivery by special appointment, and on a wooden pallet.
The driver is responsible for curbside delivery “only” and will lower the items to ground level.
Prior to shipping this product, we contact customers to share shipment details and discuss any extenuating delivery circumstances that may complicate or cause additional delivery expenses.