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About Units

The APECS Compact and Nightstor boilers work by storing heat from low-cost, off-peak Electricity. When the user requires heat, an integral fan passes air over a dry core, then over an air-to-water heat exchanger in a closed loop. This produces hot water which is circulated around the heating system by an integral pump. When, as may happen in the coldest weather, the energy is depleted from the core, boost can be provided by energising the element within the storage core. All easily controllable at the touch of a button.. The boilers can integrate with any form of low pressure hot water (LPHW) central heating system.

The internals of a standard boiler.

The Compact and Nightstor boilers are at the heart of your central heating system. Storing heat, converting it to hot water and pumping it around the radiators.
See Below:

The boiler as part of your central heating system