Combined central heating boiler.

Combined central heating boiler.The basic two types of gas boilers for central heating are single and double function boilers. In the latter, standing or hanging water is heated to the appropriate temperature (low temperature boilers). One part goes to the central heating circuit and supplies modern steel panel radiators, the second, the so-called. domestic hot water is fed into the hot water network supplying individual water batteries installed on the sinks, weaker, bidets and in showers.