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duoBOIL 9L

Assy: AT09F

Advanced Hot Water Boiler with two heating options - coolant and electricity. Monitorable and controllable via AUTOTERM Boiler Control panel.

Capacity: 9 litres

Available power configurations: 12V 300W | 230V 500W

Dimensions: 328×270×274mm

Application: Trucks, Buses, Motorhomes, Boats/Yachts, Off-Highway

Compatible with the AUTOTERM Flow 5 & Flow 14D heaters.

For brand new installations we suggest using the Domestic water kit (Assy: AT7-0018-CB) for optimal performance. If installing the boiler in an existing system, keep in mind that the system pressure is not allowed to exceed 1.5 bar. If it does, make sure to use a Pressure reducer (Assy: AT7-0006-FF0) to avoid leaks or damage to the water system components.

More information
Technical parameters

The AUTOTERM duoBOIL 9L is capable of heating up and storing 9 liters of hot water, which is usually enough for four adults to take consecutive showers.

Provides both on-land and marine vehicles with a constant hot water flow, allowing to travel, without having to worry about the comfort of hot showers or warm domestic water.

It seamlessly integrates with AUTOTERM Liquid heater installations, making it an easy upgrade for existing AUTOTERM users. It can also heat water using hot engine coolant and function independently, powered by electricity.

Unlock all the features with Comfort Boiler Control

Displaying water temperature in real-time;
Target water temperature is adjustable from 50-75°C;
Water heating hysteresis is adjustable 5-20°C from the target temperature

Turning off the heating when the water temperature reaches 78°C;
Frost protection - When the water temperature drops to 2°C, the heater will automatically heat the water to +15°C and Air to +7°C, protecting the boiler from freezing.

Note: Autoterm Comfort Control and Autoterm Comfort Boiler Control differ in hardware and software. The standard Comfort Control cannot be updated to the boiler monitoring functions.

Recommendations for the smoothest user experience

Domestic Water Kit

A domestic water heating kit to make the duoBOIL installation as easy and efficient as possible. It includes a Pressure tank (1pce), Inlet filter (1pce), 1/2'' to 10mm connectors (3pcs), Hose T-pieces 10x10x10 (2pcs), Hose connector 10mm (1pce), Spring clamps 15,7-16.5mm (18pcs), Male brass hose adapters 1/2' to 10mm (5pcs).

Water Pump

Ensures water circulation. If you already have a pressure water pump in your vehicle, you don’t need to replace it to use with the boiler system.

Pressure Reducer

Eliminates risks of an overpressurized domestic water system, that could cause leaks.

Thermostatic mixing valve

Mixes hot and cold water to ensure optimal temperature and extend the warm water volume.

How does it work?

With FLOW heater/engine coolant systems

Water is heated from the hot coolant circulating in the boiler.

AUTOTERM Boiler Control panel
AUTOTERM Flow Series heater
Coolant Pump
Convector
Engine
AUTOTERM duoBOIL
Water tank + accumulator tank
Water Tank
Pressure Valve
Thermostatic mixing valve
Domestic water system

Powered purely on electricity

This boiler can work independently, powered by electricity.

Electrical heating core
AUTOTERM duoBOIL
Pressure valve
Water pump + accumulator tank
Water tank
Thermostatic mixing valve
Domestic water system

AUTOTERM duoBOIL 9L

Voltage/Power

12V 300W

230V 500W

Number of persons that can take consecutive showers

3

Maximum pressure

3bar

Time to heat water from 20°C to 60°C

~60 minutes

Compatible heaters

Flow 5, Flow 14D

Compatible control panels

Comfort Boiler Control

Boiler dimensions

328×270×274mm

Body

Made of 316L stainless steel