Climate control and comfort in a home depends on much more than the size, power and efficiency of the heating and cooling system. It depends on proper insulation, air sealing and, above all, it depends on the air duct’s distribution and adequate balance between return and supply ducts.
Larry Janesky, founder of Dr. Energy Saver, was recently in Central Florida helping a homeowner with a high cooling bills, and uneven temperatures around the house.
The bedrooms in his house had only supply ducts. The only return ducts were located in the common areas. Using state-of-the-art equipment, Larry demonstrates how the lack of return ducts in this home’s bedrooms was increasing the positive pressure in the rooms above acceptable levels, consistently pushing air out of the house, and causing unconditioned, hot and humid air from the outside to be sucked into the common areas of the house. The differences in pressure made the air conditioner work harder, without ever making the whole house comfortable.
When homeowners experience similar problems, they tend to mistakenly believe that they need a bigger, and more powerful heating and cooling system. This is why it is a good idea to call in an energy conservation specialist, before you commit to buying an HVAC upgrade.
In this case, for example, just by adding a return duct to each bedroom, Dr. Energy Saver experts brought the pressure levels in the rooms down to normal. The temperatures are now even around the house, comfort has improved and the old air conditioner now works more efficiently.