We produce hot tub inside heaters from:
Stainless steel AISI 304;
Acid proof stainless steel AISI 316.
Complete heater package includes:
* 2-meter stove pipe with a rain cap
* stainless steel attachment bolts.
The heater has 6-meter long hot water coil pipe inside the heater firebox, that is how the heating time is more effective and faster. For bigger hot tubs diam. 222-242cm we produce a bit more bigger and powerful XL heaters with 6-meter long coil pipe in the firebox. The heater has a cover with a wooden handhold and metal air inlet. Inside heaters can be also without any tubes in the firebox or without stovepipes, if needed.
Aluminum leads heat better than stainless steel but both are good. The temperature for bathing in the barrel is at its best at 36-37 degrees centigrade. Heating times varies depending on the weather, dryness on firewood and the beginning temperature of water.
Check the accessories page if you need extra stovepipe, stainless steel protection net, stainless steel ash-shovel, spark arrestor, water thermometer etc.