Is a DCD Heating Controller suitable for use with a Combi Boiler ?
It is sometimes thought that the benefits of a DCD Heating Controller cannot be obtained with a Combi boiler. This is not correct. A special controller mode of operation is provided and all the central heating benefits apply when combi boilers and combi condensing boilers are used. Although water temperature control is not needed when a combi boiler is installed, the added advantages to be gained by installing a DCD Controller should not be overlooked. The programmed control of central heating and tight temperature smoothing control, which is discussed below, applies equally to systems based on combi boilers as to standard central heating systems. Combi heating systems, with their powerful boilers that quickly heat up water on demand, are normally oversized for central heating purposes; indeed, with small flats, the boiler can often be as much as three times more powerful than one that would be capable of keeping the flat adequately warm in the coldest weather. In central heating syste
