top of page
Twin burner heater coil

Twin burner heater coil

Our newest model - the twin burner coil. This is available in both 25.4mm and 32mm stainless steel tubing. Two heater coils welded together in a figure-8 formation. Ideal if you're looking for less height, but all the heat! Please note that this model should be used with a water pump to aid the movement of warm water through the coil.


Inner diameter of each coil is approx 300mm, about 740mm across both coils. Comes with 300mm tails as shown.


Our 32mm tube coils have a 50% greater internal volume than equivalent coils made with 25.4mm tube.


Ideal for using as part of a set-up to heat larger quantities of water using responsibly-sourced firewood - no electricity required. 


You can add heat-resistant hose, brass bulkhead connectors and more to this coil. Check out the other items in our shop and just click 'add to cart'. 


Heat-resistant hose

Brass bulkhead connector options

Stands and ashpans

Safety item - downcomer tube for warm water outlet tube


    Ensure that the coil is placed a safe distance from your hot tub and is both stable and secure. Please take particular care of how and where you use your heater coil in any settings where children or animals may be present - safety should be paramount at all times. Any attachments/ connectors/high temperature hose you choose to use should be well clear of the flames.

    It is advisable to conduct a brief common sense safety check of the setup before firing the coil. The coil should be set away from any thoroughfare and flammable materials etc.  

    Please note that your cold water inlet and hot water outlet feeds must be below the water level in your hot tub at all times when your coil is in use. If the water line in your tub is below the level of your warm water outlet feed from your coil (or drops below it while you are using your tub) water will stop flowing through your coil and just sit in it, becoming extremely hot. This is called 'dry firing' the coil, which is extremely dangerous and will result in scalding hot water or steam coming out of the hot water outlet. 

    ​If you have a stocktank style hot tub, we would advise attaching it to your coil with the hot water outlet below the upper ripples in the tank. 

Product Page: Stores Product Widget
bottom of page