heating & air conditioning

Buying a new air conditioning system is a big decision. Donnelly Heating & Air Conditioning can help you make the right choice, save energy and money.

Determine if you need a new system
Air conditioning energy costs can account for more than 50 percent of your electric bill during peak heating and cooling months. So before you spend money to repair your air-conditioning system or invest in a new one, consider these questions to help evaluate the condition of your existing system:

  • Does your system undergo frequent repairs?
  • Has your system experienced a major component failure?
  • Are you continually receiving high electric bills?
  • Is your air conditioner working harder to keep your home cool?

If your system is more than 10 years old and you answered yes to any of these questions, you may benefit from replacing your system and taking advantage of lower long-term costs.

Energy Efficiency Rating
Look for an air conditioner that has a Seasonal Energy Efficiency Rating (SEER) of 13 or higher and has the ENERGY STAR® label. ENERGY STAR-qualified air conditioners are 25 percent more efficient than conventional units.

HVAC Size
Buying the correct size unit and installing it properly is critical to efficiency and comfort. Donnelly Heating & Air Conditioning will make sure the unit is the correct size and properly installed.

Variable Speed
Consider purchasing an air conditioner with a variable speed motor, providing a more efficient system along with increased comfort and less noise.

Remember, even though these products can be more expensive to purchase up front, the cost difference will be paid back over time through lower energy bills. Also consider regular maintenance of your heating and cooling system to prevent future problems and unwanted costs.

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We proudly provide heating, cooling & HVAC service to the following communities in Chester County, PA:

Ardmore, Aston, Berwyn, Boothwyn, Broomall, Bryn Mawr, Chadds Ford, Chester Springs, Coatesville, Devon, Downingtown, Exton, Glen Mills, Glenmoore, Havertown, Kennett Square, Malvern, Newtown Square, Paoli, Thorndale, Thornton, Villanova, Wayne and West Chester
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