| 摘要 |
The central heating system comprises one or more radiators connected in series with a boiler, and an insulated water storage tank in fluid connection with the boiler and the one or more radiators. In a first mode of operation the boiler provides heated water to the one or more radiators and additionally to the tank. In a second mode of operation the boiler is deactivated and the tank selectively provides stored heated water received from the boiler to the one or more radiators, thereby providing background heat while the boiler is turned off. The supply of water from the boiler and tank may be regulated by pumps operated by electrical timing programmes. During periods of no demand, no water is dispensed by the boiler or the tank and the water stored in the tank retains much of its heat because the tank is insulated.
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