Q: How often should I change my furnace filter?

A: An important thing that needs to be done to keep your system clean and operating efficiently, is to change your furnace filter. If you have a standard furnace filter, we recommend replacing it monthly, even if the old one still looks clean. High-efficiency filtering systems, air cleaners, and ERV may require different schedules. Pets, the environment, and the number of household members can all affect how often to replace it.

Q: How often should I have my furnace and central air conditioning serviced?

A: Routine service is very important for the energy efficiency and longevity of your equipment. Equipment that is not regularly serviced tends to need more repairs. We recommend having your system professionally cleaned and serviced a minimum of once per year.

Q: What do I do if my thermostat has problems?

A: Check and make sure that the batteries are good if your thermostat requires them. An adult should try turning the thermostat to the off position and back on to reset the system. If there are still problems, call your heating and air contractor.

Q: What are SEER ratings of air conditioning systems?

A: SEER is the acronym for Seasonal Energy Efficiency Ratio. The SEER rating is shown as a number, for example, 13. The higher the number is, the more efficient the air conditioner. For many homeowners, a 13 SEER (as of January 23, 2006, the minimum standard allowed by the U.S. Department of Energy) air conditioner or heat pump will represent money saved on each month’s electric bill. Exactly how much you can save will depend on the efficiency of your current system. Here is a comparison: 13 SEER efficiency –
*Delivers about 23% energy savings compared to 10 SEER models.
*Delivers about 8% energy savings compared to 12 SEER models. Actual savings will depend on the age, efficiency, and condition of the unit being replaced.

Q: Is Freon now obsolete in air conditioning units?

A: The most commonly used refrigerant in today’s air conditioners and heat pumps is R22. By 2010, all new air conditioners and heat pumps will be required to use environmentally sound refrigerants, such as R410A. This phase-out has been mandated in an effort to help protect the earth’s ozone layer. The phase-out of R22 refrigerant will likely cause a significant increase in the cost of R22. York’s R410A refrigerant meets the 2010 standards for ozone-depleting refrigerants.

Q: What does the AFUE of my furnace have to do with energy efficiency?

A: AFUE is the acronym for Annual Fuel Utilization Efficiency.
AFUE is shown as a percentage of 92% or 93%. The higher the percentage is the more efficient the furnace.

Q: What should I do when my carbon monoxide (CO) detector alarms?

A: Verify that it is the carbon monoxide warning and not a low battery warning. Turn off all gas appliances, if possible. Open a window or door for ventilation and call your heating and air contractor.