Replacement Furnaces

A standard furnace wastes about 30 cents of every fuel dollar. By taking advantage of the latest technology and installing a new high efficiency furnace you can save energy dollars and improve comfort.

Most new high efficiency furnaces have an Annual Fuel Utilization Efficiency (AFUE) greater than 85%. The AFUE indicates the percent of fuel turned into heat. The higher the AFUE, the more efficient the unit and the more energy dollars you save. Residential and small commercial-sized furnaces are required to supply an EnergyGuide which compares annual fuel costs with those of other similarly sized units. (An example of the EnergyGuide is shown here).

Some of the latest developments in efficient furnace design are mentioned below.

Electronic Spark Ignition eliminates the need for continuously burning pilot lights which waste fuel. Automatic Vent Dampers close the flue pipe when the burners are off and reduce the amount of room air drawn up the chimney. Condensing Furnaces draw so much heat out of the combustion gases that moisture in the gas condenses. Exhaust gases from a condensing furnace are cool enough that they can be vented out through a wall with plastic piping. Pulse Furnaces burn gas in small explosive pulses, much like a car engine. Pulse combustion allows for more heat to be extracted from the burning fuel, but tends to be noisier than conventional systems. (This noise can be addressed with sound insulation).

Your heating service company can evaluate the efficiency of your present furnace and assist in your new furnace buying decision. Your local utility representative can also provide you with assistance.

Note: Any replacement furnace should be installed in accordance with the furnace manufacturer's directions.