It turns out the oil-burning colossus in the basement of my childhood home wasn't a furnace, as I thought until recently. My memories are full of instances of cozy gatherings around the cast-iron ...

The hot water passes through the radiators in the buildings. Apart from the absence of a boiler in each dwelling, there is no noticeable difference between a building using district heating and one ...

The pump works when the desired temperature difference is achieved between the collector and the ... the pump is connected is switched on and the heated water from the solar collector goes to the ...