High-efficiency condensing furnaces (90% AFUE and above) are a bit more complex than conventional furnaces. The main differences between a conventional and condensing furnace are the heat exchanger technology used to extract heat from the combustion process and the method used to exhaust the combustion gases. In these ways, the furnaces are very different. The condensing furnace does not have a significantly more efficient combustion process than does a conventional furnace; both use gas burners with electronic ignition. The difference lies in that the condensing furnace has a more efficient heat extraction process after combustion.

You can keep your air conditioner running efficiently with some preventative care measures. Shut off the power to your AC before cleaning it or performing any of these tasks:  clean your filter at least twice a year; remove leaves and twigs from cages; clean the fins with a garden hose or special spray, then use a butter knife to straighten any that are crooked; keep your yard clean so the fins won't get blocked; cover the unit up for winter; and make sure it's level or you run the risk of damaging the inner workings of the unit.


It isn’t unusual for a heat pump to ice-up in really cold weather, but it’s defrost cycle should kick on periodically to melt the ice. If the condenser unit of the heat pump is frozen up and the defrost cycle doesn’t melt the ice, turn it off. Make sure none of the return-air registers are blocked, and check the filter to make sure it isn’t clogged. If there doesn’t seem to be a problem with air flow to the unit, see more information at Heat Pump Cold Weather Problems or call an HVAC service professional.

Ductwork pinging or popping. If you hear a pinging or popping sound coming from metal ductwork, this may be caused by thermal expansion or by air blowing past a loose flap of metal. Track along the duct runs, listening for the sound. If you find it, make a small dent in the sheet metal to provide a more rigid surface that’s less likely to move as it heats and cools.
Geothermal Heating and Cooling systems are unmatched in every way. This green alternative to temperature control is three times more efficient than conventional systems. Recognized by the US Environmental Protection Agency as the most environmentally-friendly option available today, installation of a geothermal HVAC system translates into a 50% reduction in heating costs, 30% reduction in cooling costs, and a 65% potential savings on hot water costs.  Sky Heating & Air Conditioning is now the largest WaterFurnace geothermal contractor west of Iowa. Our team of experienced professionals offer conscientious and skilled start-to-finish installation and service.  We specialize in outstanding geothermal HVAC systems, adding value and enjoyment to your home through sustainable solutions to year round temperature control. Contact Sky Heating & Air Conditioning for geothermal heat pump installation in Portland.

The store scheduling was great - confirmed for an open date within minutes. My technician was thorough and patient in explaining and working through the resolve needed for my furnace problem. He was courteous and good-natured, which helped to calm my frazzled state over a unexpected HVAC repair. The tech took care in my home not to create or leave a mess. Finally, & more importantly, I felt that rate was fair and I didn't feel cheated at the end of it all. I was also pleased that I could put the expense on my Home Depot card. I'd rather not need it, but if I run into another problem, I would gladly use them again.

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