No electricity! No cables! Just lots of hot water for your wood-fired hot tub :-)


A stainless steel heater coil with welded stainless steel smoke guard and 2 x 150 cm of heat-resistant hose - great for heating your hot tub without any need for electrical plug points, extension cables etc made from extremely durable materials. Great for long-term outdoor use.  

The heater coil:
  • 6 metres of 1”(25.4mm) stainless 304 steel tube (with a 1.5mm wall)
  • inner diameter - 300mm
  • outer diameter (including the smoke guard) - approx. 362mm
  • approx. 180mm (6 coils) high - works well with both wood and charcoal
  • comes with 300mm tails (tail length is measured from the outermost edge of the coil to the end of the tail).

The fireguard:
  • made from 0.9mm stainless steel sheet, 250mm tall
  • fitted and welded around the coil
  • enhances the thermo-syphon effect of the coil, containing the heat of the fire and channeling airflow more effectively.
The hose:
  • heavy-duty, 1" heat-resistant hose - two lengths of 1.5 metres
  • can withstand up to 120 degrees centigrade
  • comes unattached to coil for ease of delivery - snug fit but a firm push will attach it to the tails. Stainless steel jubilee clips provided to secure the hose.
The brass connectors:
  • two threaded brass hose barbs, which plug into the end of the hose
  • two threaded brass bulkhead connectors (1" male & 3/4 inch female thread), which screw onto the hose barbs
  • a simple way to attach a heater coil with flexible hose to your hot tub setup, especially useful for stock tanks.



We are a small, family-run business in Ayrshire, Scotland. We also make custom heater coils for wood-fired hot tubs and other types of heat exchanger coil. Please contact us for any custom requests.