A heat exchanger isn’t necessary in an electric furnace, which doesn’t burn anything. But every gas- and oil-burning furnace must have one. John Gabrielli, owner of Air Temp Solutions ...

What Types of Fuel Can Be Used by a Furnace’s Heat Exchanger? There are several types of fuels that a heat exchanger can use to create heat. Natural gas is most common however, liquid propane ...

All high-efficiency condensing gas furnaces have the unique feature of two heat exchangers — a primary and secondary — whereas the mid-efficiency furnace only has one. The primary heat exchanger is ...

Water or steam is heated in the central boiler by running it through the boiler heat exchanger ... whether you own a propane boiler, natural gas boiler or electric boiler. The water or steam ...

A gas furnace made in the early 1970s typically ... However, if a key component, such as the heat exchanger or control module, fails, you’re probably better off replacing the furnace, especially ...

This compares to a gas boiler, which Checkatrade says costs an average of ... They absorb "heat energy from outside air blown across a heat exchanger using fans. Although the air is cool in the winter ...

With increasing concerns over global warming and the drive toward net zero building operations it may sound counterproductive ...