Located in a metal enclosure on the furnace's exterior, to the top or side, the evaporator coil works similarly to an automobile radiator to produce cool air, which is then circulated through the ductwork.ĥ. The evaporator coil has an opposite role to the heat exchanger it acts to cool the air when your thermostat is set to lower temperatures in summer. The heat exchanger pulls in cool air, heats it, and circulates the resulting heated air via your ducts and out through the vents.Ĥ.
This component switches on when the furnace is activated by thermostat to produce warmer temperatures in winter. The heat exchanger is found inside your furnace unit's housing. This heating process is accomplished using one of four possible heat sources - combustion (burning natural gas, oil, coal, or propane), electric resistance, heat pump, or solar energy collected on site.ģ. Its function is to heat a supply of air which is to be distributed to various rooms of your home via the HVAC. It's also the largest, requiring substantial space - typically in the cellar, your finished basement, the attic, or a special closet designed for that purpose. The furnace is the key component of your HVAC system. When the ambient temperature becomes too cold or too hot, the thermostat will trigger the heat exchanger or the evaporator coil-condensing unit combo to begin circulating warmed or cooled air as needed.Ģ. Set on a prominent, easily accessible wall, it may be either programmed in advance or set manually to keep the home at a desired temperature. The thermostat is usually the most visible part of your HVAC system. That way, when something stops working you can either look into fixing it yourself, or let a HVAC company near you know exactly what the issue is so you can get your HVAC system back in working shape quickly.ġ. Learn the facts about essential components of your HVAC system and find out the role each plays in keeping your household - and its members - warm in winter and cool in summer.
An efficient HVAC system is important to the comfort of your family throughout the seasons of the year, because this climate control device is responsible for Heating, Ventilating, and Air Conditioning your home.
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