2 February 2021
Gas furnaces are renowned for their efficiency, and while they are more expensive to purchase and install than electric or oil-fired furnaces, they can pay for themselves with their comparatively low running costs. However, cheaper, single-stage gas furnaces may not provide the kind of energy savings you are looking for. Modulating gas furnaces, also known as multi-stage gas furnaces, are a relatively recent addition to the world of residential heating. They are more expensive than single or two-stage furnaces, but investing in a modulating furnace can be well worth the money.