Mini boiler - water heater/heat exchange

Benjineering Mini boiler - Water Heater - Heat exchange
Plug and Play ready to go!

This little wood-fired unit packs a punch — delivering up to 1.5kW of water heating power, with an estimated 3 to 4kW fire heat output.

Perfect for off-grid use, camping, or tiny homes. Say you’re out camping and need a hot shower — this unit can heat a bucket of water from around 22°C to 44°C in just 30 minutes. Job done.

To run this for just over 2.5 hours I only burnt up two boards off a pellet, super efficient, you could heat your water daily and only use around 1 pellet a week in fuel if you pre cut each piece to size 🔥😎

Made from Corten steel with a stainless steel boiler, fitted with ½” (20mm) male threaded ports on each side for easy plug-and-play use. Weighs only 8kg and stands at 155mm wide, 205mm deep, 305mm high (+90mm for flue). 395mm hight in total.

Heats:
20 litres from 22 to 46 degrees C in 30minutes
40 litres from 22 to 46 degrees C in 1 hour
80 litres from 22 to 46 degrees C in 2 hours

Tested in the evening, not sealed, no insulation just thermosiphoning into a metal tub.

Built tough. Runs hot. Ready when you are. 

These fires are classed as un tested appliances and therefore are made for places that don't require a permit they are not un tested or un safe, just untested by the official labs (emissions testing) they may still be able to get permitted depending on your councils rules, they are classed as multi fuel heaters so are excluded from the emissions act, but also can be classed as just a wood burner, but as a multi fuel heater they only need to meet building code for permitted installations as per code, but check with your council for there rules as they can differ, but since they are classed as a un tested appliance, they are sold strictly for outdoor use or anywhere a permit isn’t required.

By purchasing from me at Benjineering you agree to the terms and conditions which can be found at the bottom of the website!