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ECM motor, DC motor, variable speed motor – all of them use different names for the same type of the furnace motor. Best Answer: With a two stage variable speed furnace, your can have two fans but at least one of them is also variable speed. As a result of this data, the blower adjusts its speed to accommodate the required temperature. The fan in a furnace propels the heated air through the main air duct and into the ductwork of the building. Expect to pay about 15% more for a double stage furnace than a single stage model. And its variable-speed blower makes this furnace even more efficient. The SL280V delivers the ultimate in quiet, consistent heating. Free article about 'Build this fan-speed control for your furnace.' at AccessMyLibrary.com. Search information that libraries trust! Best Answer: I would go with the variable blower. It's much more comfortable, quiet and economical. Does changing the fan speed on a high effecient, variable speed gas furnace decrease it's efficiency? The chart below shows the average annual electric operating costs in Wisconsin for a standard fan (like your old furnace) and a variable-speed fan (like your new furnace).
New Furnace (Fixed fan speed vs. variable? – Yahoo! Answers.
Set your thermostat fan switch to "ON", and the motor ramps down to half I've sold 2 stage and 2 stage variable speed furnaces for years to happy customers. There are many reasons for choosing a variable speed furnace, but the main reason is comfort. your heating questions, including heater and furnace questions on variable speed factor to consider when looking at a new furnace. Furnaces that feature variable speed blowers can perform at a larger range of RPM than regular gas (90db). Natural Resources Canada's Heating With Gas guide. BC Hydro's brochure explaining the advantages of variable speed fan motors. If the humidity seems high in summer, turn the fan back to auto. Just as a standard 24vac thermostat connects to and operates a variable speed furnace, so does a zone control panel. Both simply output a demand for the fan to operate. devices are only active when the furnace blower is on. So the best way to utilize these accessories is to have a variable speed blower. Efficient performance . The XV95 is rated with up to 96.7% AFUE and is Energy Star qualified.
Confused about multi stage or variable speed furnace with non.
Further, in the above case, the speed of the blower is not variable (i.e., you don't have a choice of fan speed, while heating. My gas forced air furnace has a single speed fan. It cycles on and off quite a bit. It is noisy. Products like the Armstrong Air 80 Highboy oil furnace with variable-speed fan have given this HVAC manufacturer a good reputation for quality and value. quot;This furnace used to be the top dog until Multi-Stage furnaces came along. However, that doesn't mean that it is without value. Variable Speed Fan vs. Single Speed Fan. Many people do not realize that there are options in the types of Furnace fans that are available. Comfortable, even heating . Variable-speed fan motor adjusts speed to provide a consistent flow of warm, comfortable air with quiet operation. There are many reasons for choosing a variable speed furnace, but the main reason is comfort. It is a common practice to run the furnace fan continuously at low speed to improve the comfort of residents.