Integrating renewable energy with hot water and heating
Providing the link between solar thermal energy and heat pumps with the supply of domestic hot water and underfloor heating is Chelmer Heating’s Ecocat cylinder.
Chelmer Heating’s Ecocat high-efficiency water cylinder can accept input from a heat pump and also has another coil to accept heat from solar collectors for both heating and hot water. Ecocat provides mains-pressure hot water for baths and showers, together with buffered low-temperature hot water for underfloor heating. This fully integrated design is compatible with a range of boilers — including gas, oil, LPG and electric. The fully insulated cased unit incorporates a tank-in-tank cylinder for optimal heat transfer. A heating buffer, optimised for heat-pump connection, allows fully zoned underfloor heating with simplified controls and a marked increase in efficiency. There is a back-up immersion heater for the domestic hot water, and the design minimises wasteful cycling of the boiler and heat pump. There are three sizes of cylinders, with storage capacities of 100, 150 and 200 l.
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