AQUA-HOT 100D Heizsystem
The Aqua-Hot 100D heating system is a water-based combination heating system for the motorhome by means of water heating and heating of domestic water.
The system uses diesel as fuel and can also be operated with 230V.
The system consists of two parts. The diesel burner unit can be mounted outside the vehicle. The indoor unit is mounted in the vehicle and contains the storage tank, the plate heat exchanger and the controls.
Thanks to this split installation, the system is extremely compact in the interior and the burner can be mounted in an optimal location. This also significantly reduces noise emissions in the interior.
It is operated via a clear color touch display. Up to three separate heating circuits and hot water can be controlled centrally.


Instead of a hot water boiler, the system uses a plate heat exchanger to generate hot water. The domestic water outlet temperature is also limited by an internal thermostat.
The advantages of this system:
-Nonstop hot water in unlimited quantities
-No germs or calcification of the boiler
-Less weight because there is no water supply (usually about 10 liters)
-Quick availability of hot water
energy saving
-No risk of scalding due to water that is too hot

The water heating system is operated with a water-glycol mixture and allows the heat to be directed exactly where it is needed.
In the basic system, the heat is then released through air heat exchangers. These can be installed anywhere in the vehicle.
In this way, any temperature zone can be created.

upgrade of existing systems
I have developed a system upgrade which also allows the Aqua-Hot 100D to be used as a replacement for an existing passive hot water heating system, e.g. Alde.
Here the main unit is simply replaced by the 100D system and the heating system can continue to be used as usual.
This upgrade is available exclusively from me.
Image source: Airxcel, modification: Becatec; copying without permission is not permitted.