Hot water on demand, wherever you're parked — the AUTOTERM combiBOIL gives your build a proper hot water system without compromising on space or power.

The combiBOIL connects directly to any AUTOTERM Air diesel heater and uses the warm air from your heater to heat the water tank — no extra fuel, no extra power draw. Hook it up to mains at a campsite and the integrated 230V element takes over, giving you fast hot water from the hookup.

Key Features

Dual-source heating: warm air from your AUTOTERM diesel heater, or 230V mains electric element
Choice of tank size: 4L, 7L, 9L, or 12L stainless steel tank
Built-in thermostat with adjustable temperature (50–80°C)
Closed-cell polyurethane insulation to hold heat longer and reduce energy use
Rotatable stainless steel outer shell for flexible installation in tight spaces
Standard G1/2" threaded water connections
Integrated pressure relief valve and drain valve for winterising
Frost protection: activates automatically at 2°C, warms water to 15°C and air to 7°C
Overheat protection: cuts off at 85°C
Manufactured in Western Europe from premium materials


What's Included
Each combiBOIL ships with a complete domestic water installation kit:

1 x Pressure tank
1 x Water inlet filter
3 x 1/2" to 10mm connectors
2 x 10mm hose T-pieces
1 x 10mm hose connector
18 x Spring clamps (15.7–16.5mm)
5 x 1/2" to 10mm male brass hose adapters


Optional Controller
The AUTOTERM Comfort Boiler Controller gives you a clear digital display of water temperature, adjustable hysteresis settings, and simple one-touch control — worth having if you want precise management of your hot water system.

Specifications

Tank material: Stainless steel
Water connections: G1/2" threaded
Heating methods: Warm air heat exchanger and 230V electric element
Compatible with: All AUTOTERM Air diesel heaters
Suitable for: Campervans, motorhomes, caravans, boats, and leisure vehicles