
Save costs at the same time lower CO2 emissions compared to gas-fired systems by combining unit heaters with heat pumps to heat large spaces, industrial sheds and retail spaces.
Heat pumps supply the unit heaters with low-temperature low pressure hot water LPHW for maximum efficiency. The system also produces pleasant temperatures and a comfortable indoor environment without the risk of draughts in the occupied zone.
What does low water temperature mean?
Low water temperature systems are designed to operate with low supply water temperatures.
Example:
Supply temperature 40 °C*
Return temperature 35 °C
Room air temperature 18 °C
Heat can thus be provided more economically.
*Other temperatures are possible depending on the project.
You can become more independent and save costs in the long term with a low water temperature solution – whether in addition to your existing heating system or as a complete system in a new building.

A bivalent supply is possible in existing buildings. Heat output and energy are saved by adding heat pumps to an existing system. The number of unit heaters installed and the heat pump output can be individually varied as required. This enables customers to heat cost-effectively and in an environmentally-friendly manner up to the bivalent point without gas. What is more: the higher the proportion supplied by the heat pump to the existing system, the lower the gas consumption.

We recommend a monovalent supply for new buildings. 100 % of the heat load of a building is met by heat pumps, with no need at all for a gas supply.
Designing the heating of an industrial shed with heat pumps differs significantly from conventional calculation approaches with high operating temperatures.
Building services designers and installation contractors now need to work with low system temperatures, installing multiple small units rather than a few powerful units. This change to the conventional approach will be worth your while. We’d be glad to advise you.
Pleasant temperatures even with a low supply temperature
Kampmann unit heaters are mounted on the ceiling. The right number and size of unit heaters produce systems that create minimal temperature stratification in industrial sheds. Pleasant temperatures are generated in the occupied zone and there are virtually no energy-intensive cushions of air under the roof of the industrial shed. This produces a comfortable environment for the people who work there, and generates efficiencies for the operator and the environment.
Comfort without the risk of draughts
The building services principle that dictates that the air discharge temperature should never be lower than the body temperature no longer applies. A low water temperature system with unit heaters consists of multiple smaller units, with the result that no large volume flows need to be moved in one place. Low outlet temperatures do not pose a problem if the air velocity is minimal in the occupied zone!
See for yourself the effectiveness of the system in our simulation. You can see that even with an outside temperature of -12 °C, there is a temperature of over 18 °C in the occupied zone supplied draught-free. Find out more about this here.
Can I also cool my low water temperature operated industrial shed?
Absolutely. Particularly if you have an industrial shed with a high heat load. We will select the right units for your application and choose the correct system temperatures.
Make use of Kampmann KaClima chillers and heat pumps for the centralised supply of the units installed in your industrial shed with environmentally-friendly water-based heating and cooling energy. Design a future-proof and energy-efficient indoor solution together with our end-to-end range of unit heaters.






USEFUL TIP: Save up to 60 % energy with air curtains
Much of the heat in industrial sheds and other large spaces escapes through open doorways.
Useful components, such as ProtecTor air curtains, help to provide powerful screening of cold air. This kind of screening can quickly save up to 60 % of the heating costs.