HWM 40

The hot water module HWM 40 is a mobile and compact instantaneous water heater used for hot water supply of shower systems, other sanitary facilities as well as in kitchen and laundry systems.

Order number: 1.346-120.0

In one hour, the diesel-driven HWM 40 can heat up to 1200 litres of water to drinking water quality to a temperature of 70 °C maximum. As temperature fluctuations are extremely minimal, supplying several shower heads with hot water is no problem. Just a small amount of electricity is needed to start and ventilate the unit. An optionally available mixing valve makes the unit ideally suited, for example, to supply a quickly deployable two-man shower tent with warm water. With its integrated castors and compact design, carrying and transporting the unit on vehicles, by air or by sea is not a problem. High-quality components and an innovative design mean that all parts that come into contact with water can be disinfected without the use of chemical cleaning agents, as required by German drinking water regulations TrinkwV 2001.

Features and benefits

Reliable operation
  • Minimal temperature fluctuations
Easy operation
  • Fully automated operation
  • Intuitive operating concept
Simple logistics
  • Approximately the dimensions of half a standard Euro pallet
  • Integrated wheels and transport handles
Ready for use fast
  • Quick to set up
High energy efficiency
  • Highly efficient due to the use of primary energy
Satisfies the highest standards
  • All surfaces that are in direct contact with drinking water conform to internationally known and accepted regulations (e.g. DVGW (German Technical & Scientific Association for Gas and Water), NSF)
  • Integrated thermal disinfection function


Technical data

Voltage (V) 240
Water flow (l/h) min. 600 / max. 1200
Water temperature (°C) 10
Dimensions (L × W × H) (mm) 1000 x 850 x 918
Total weight (kg) 106