Changing a furnace filter

For those of you that live in the Pittsburgh area and surrounding communities like Allegheny County, Armstrong County, Beaver County, Butler County, Washington County and Westmoreland County, you know how important it is to have a well maintenance furnace that provides safe and reliable heat to you and your family.  Here are some tidbits about home heating and furnaces that you may not know.


The definition of furnace is a structure or apparatus in which heat may be generated, as for heating houses, smelting ores, or producing steam.  Source –

First Home Furnace

As outlined in the Britannica, the history of home heating is the following:  “The earliest method of providing interior home heating was an open fire. Central heating appears to have been invented in ancient Greece, but it was the Romans who became the supreme heating engineers of the ancient world with their hypocaust system. Central heating was adopted for use again in the early 19th century when the Industrial Revolution caused an increase in the size of buildings for industry, residential use, and services.” – Britannica

Who invented the radiator?

The radiator was invented by American, William Baldwin. His process of making radiators of cast iron brought central heating into the homes of most Americans by the start of the 20th century.

Who invented the furnace?

David Lennox helped to develop what has been described as the first riveted-steel furnace in 1895. His contributions to furnace design have been described as significant steps forward in durability and efficiency from the cast iron furnaces commonly in use near the end of the 19th century.

Without electricity and fans to move air, these early furnaces transported heat by natural convection (warm heated air rising) through ducts from the basement furnace to the rooms above. These two methods would dominate home central heating until 1935, when the introduction of the first forced air furnace using coal as a heat source used the power of an electric fan to distribute the heated air through ductwork within the home.

Gillece Services

Gillece Services is Pittsburgh  area’s one-stop shop for home repair and improvement.  Our trusted services include all of your Plumbing, Heating, Cooling, Electrical, Indoor Air Quality, and Water Conditioning needs – emergency, maintenance and replacement.  We’re “There The Same Day or You Don’t Pay!”* and “Always Here to Take Your Call!”