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Submersible Wood Fired Hot Tub Heater - Aluminum 100,000 BTU


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Item Description


Wood Fired Hot Tub Heater

TimberLine Aluminum Volcano
Hot Tub or Pool Wood Fired Heater
Heat your hot tub or pool with wood! No noise, no electric bills!


 Aluminum wood fired pool heaters 



  internal wood fired stove  




  aluminum wood burning pool heater    



TimberLine Wood Water Stoves are an alternate way to heat a hot tub or spa! This 100% Aluminum Water Stover produce about 100,000 BTU (30Kw) 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 Volcano Wood Water Stove naturally circulates the water using no electricity. Its design is based on Thermosiphon; the hot water rises to the top of the pool,  At the same time cold water is drawn to the heater to replace the rising hot water and gets heated forming a continuous cycle.



wood pool heater layout  


wood pool heater layout


Both the stove body of the Water Heater and the firebox are made with high quality aluminum, making this wood burning pool/hot tub heater easy to move. 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 stove pipe and includes a top rain rap as well as an adjustable flue damper for fine control.

The Wood Water Heater utilizes a sophisticated heat exchange design for efficient water heating. The Aluminum stove body surrounding the firebox also contains 3 port channels.   Additional heat transfer takes place in a these channels tubes that runs horizontally through the firebox. An internal baffle deflects the path of the fire, so it gives up more heat into the heater before going up the chimney.

Heat is easily controlled by adjusting the air draft control for heating the water and maintaining the water temperature.

The dimensions of the TimberLine Volcano Stoves are 38" wide x 27 " long x11.5" high with at total weight of 66 lbs. The fire box can accommodates 32" logs.

The heating time varies by the amount of water capacity of the tub and the starting temperature of the tub. Generally the TimberLine Volcano Hot Tub Heater will raise 100 gallons by about 120 degrees F per hour.  Included is a 2 year warranty against Manufacture defects. The TiberLine Wood Water Stove is perfect for cabins or anyone who wants to enjoy a hot tub without any pump noises. Great for the do-it-yourself who wants to build their own hot tub.        


What is included:

  • Stainless Steel  TimberLine - Volcano Water Heater approx 1000,000 BTU
  • 2  x 5" stainless steel chimney with rain cap


Please call us any time for more information 1 800 759 8990!




Payment Details

We accept PayPal and Credit card (Visa or Mastercard).  If you are ordering multiple units and part, please call us to see if we can save you shipping cost for multiple item orders.


 No taxes to US residence!


Shiping and Handling

Please allow 4-6 days for shipping via UPS Ground to USA or Canada.  You will be emailed a tracking number to the email address you provide us.  Expedited Shipping services are available!

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  • Model: C-629
  • Shipping Weight: 300lbs
  • 2 Units in Stock
  • Manufactured by: TimberLine