NEW! Wood Fired Hot Tub Heater Blaze -Medium Stove TimberLine Stainless Steel Hot Tub or Pool Wood Fired Heater Heat your hot tub or pool with wood! No noise, no electric bills! Internal view TimberLine Wood Water Stoves are an alternate way to heat a hot tub or spa! This 100% Stainless Steel water boilers produce about 55,000 BTU of heating capacity by only using wood. You can now heat a medium-large hot tub in hours! These are ideal for off grid applications or to supplement pool and spa heating costs. The TimberLine Wood Water Stove naturally circulates the water using no electricity. Its design is based on Thermosiphon; the hot water rises and exits via the top port. At the same time cold water is drawn in to the heat exchanger via the bottom port. Forced Circulation -Optional Thermosiphon System -Standard Both the stove body of the Water Heater and the firebox are made with high quality AISI 430 grade stainless steel. The heater can be left outside without the danger of rusting or burning-out. A specially designed vented smoke outlet provides secondary combustion of unburned gases, thereby reducing smoke emissions and chimney sparks. The heater comes with a 8" of stainless steel&nb