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The Dachs mini-CHP unit can be installed on its own or with accessories such as the 750 litre buffer vessel or the condenser.

Selecting a Dachs

The key to a successful CHP installation is to make sure that the engine runs for as long as possible to generate valuable, low cost electricity.

Therefore, it is essential to know that the heat produced by the engine can be used in the building at all times. If the building's heat, or hot water, demand falls below the minimum heat output of the CHP, it will switch off until the heat demand is re-established. This will mean loss of electricity generation.

It is important to calculate the minimum, or base, heat demand of the building and select the number of Dachs modules to meet this requirement. If there is a fairly constant base de-mand, eg. for domestic hot water generation or for a swimming pool, the CHP(s) will operate for long periods. If sufficient additional heat demand exists, it might be considered suitable to increase the number of modules above the base demand requirements, but make sure that there is sufficient demand for most of the electricity generated.