Natural Gas Furnaces - Energy Efficient Features

Save up to $2,000 per year, every year.

Choosing a high-efficiency natural gas furnace is the best way to get the most out of your heating dollars. With a high-efficiency natural gas furnace, up to 97 cents of every dollar you spend in energy translates directly into heat in your home. Opting for a furnace that earns the Energy Star* rating is the easiest way to know that you have one of the most efficient furnaces on the market.

* Energy Star is a program that helps consumers easily identify their most efficient new products by category. Find out more details about Energy Star.

Energy efficiency improvements have been made to high-efficiency furnaces. These improvements include the 'two-stage furnace' and the 'variable speed blower motor'.

Understanding 'two-stage furnaces'
Homeowners report more even heating when their furnace is a two-stage model. With a 'two-stage furnace' there are two levels of heating and two levels of fan blower speeds (high and low). A 'two-stage furnace' primarily operates on a lower input. When there is a greater demand for heat, such as on the coldest days of winter, the furnace will switch to operate at a higher input. The benefit of a 2-stage furnace is that it provides more even temperatures throughout the home, since warm air is circulated for a longer period of time when operating on a lower input. An added advantage is that the furnace is usually slightly more efficient than an equivalent single stage furnace when operating on a lower input.

Understanding a 'variable speed blower motor'
Variable speed blower motors move at different speeds to control the flow of air throughout the home. Unlike a conventional blower motor, a variable speed blower motor is designed to be efficient at all speeds of operation. This is particularly important for 2-stage furnaces that operate longer times.

A variable speed blower motor can reduce electrical consumption of a furnace by as much as 60% compared to standard motor[1].

[1] Ontario Power Authority - Every Kilowatt Counts