Save 10% When You Order Any 2 Freestanding Benches
Harvia Wood Burning 20SL (Exterior Wood Feed)
Coanda Air flow in the woodburning sauna heater External feed

Harvia Wood Burning 20SL (Exterior Wood Feed)

20SL External Feed Woodburning sauna stove is a popular powerhouse for mid-sized saunas — made for saunas 282 to 706 cu ft.

This allows you to keep the messy firewood outside and can provide heat to a changing room!

  • Includes a glass door standard
  • Features our patented ‘Coanda’ air circulation system for long life and efficient heat up

(0 reviews)  

Price: $1,395.50

RRP: $1,625.50   Save 14%
Built by:

Harvia Wood Burning Sauna Heater Model 20SL with external feed for the Traditional Sauna Experience

Soft heat, soft steam and a crackling fire!

Designed to use wood in place of electricity with very effective flame circulation system. The system heats up the rocks evenly and the sauna warms up quickly. The heat is efficiently transferred to the rocks. The result is soft heat. Create a pleasant steam by sprinkling water on the rocks. These sauna heaters have an excellent efficiency ratio (more heat, less wood consumed).

Technical Help

Installation Guide

Wood burning sauna stove sauna heaters features

  • Durable steel material: High temp baked enamel and heavy duty steel interior
  • Rigid cast iron fire grate
  • Size: 17"w x 20 1/8" + 8 5/8"d collar x 30"h
  • Removable ash pan
  • 90 Lbs stone capacity * Stone included
  • Chimney outlet on top or out the back side
    (6" Stove piope opening)

Technical Specifications

Sauna volume min/max

282 / 706 cu. ft.

Min. distance to side wall

20" With no fire protection

Min. ceiling height



17"w x 20 1/8" + 8 5/8"d collar x 30"h

Heater power

14.4 KW


There have been no reviews

Only registered customers are allowed to add review. Please sign in and add your own review!
Cedarbrook Sauna + Steam

View Cart  |  Call Toll Free 1.800.426.3929