Is your furnace heater ready for cold weather? The word furnace comes from the GreekFornaxfornax, which means oven. Americans and Canadians use the term furnace to refer to their household heating system. Your home furnace is considered a major appliance that is permanently installed to provide heat in your home. The most common fuel source for modern furnaces in North America and much of Europe is natural gas. Other common fuel sources are propane and in rare cases coal or wood. There are also many electric furnaces in use today.
Furnace types are: Single-Stage, a single stage furnace has one stage of operation – it is either on or off. Two-Stage, this type has two stages of operation, full speed, and half speed. depending on the demanded heat output, they can run at a lower speed most of the time. Modulating, this type of furnace can modulate the heat output and air velocity nearly continuously, depending on the demanded heat and outside temperature.
To assure that your furnace will run efficiently the first time you turn it on this Fall, call 785-341-4193 to either get it serviced by our highly trained technicians or call and ask about our annual Preventive Maintenance Plan. De Hart Plumbing Heating and Cooling, serving Manhattan Kansas, Junction City Kansas, Topeka Kansas and some surrounding areas. 
