
We have no relationship with advertisers, products, or services discussed at this website. Visit our HEATING AND AIR CONDITIONING page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.InspectAPedia tolerates no conflicts of interest. Will closing doors reduce my heating and cooling costs?.Can the return air be in the same room as the gas furnace?.What are the most common problems with wall/window air conditioners?.Why is my air conditioner not cooling enough?.Why does it take so long to cool a house when an air conditioner has been off for a while?.Why has the thermostat screen gone blank?.What is wrong with an air conditioner when the air flow out of the vents is low?.Is a furnace allowed in a bedroom, bathroom, or an adjoining closet?.How did homes stay cool in Florida before air conditioning?.Does an old air conditioner use more electricity as it ages?.What is the minimum slope of a flue connector for a gas furnace or water heater?.Where is the air filter for my central air conditioner and furnace? I can’t find it?.What color should the flame be in a natural gas furnace?.Is the energy efficiency of the furnace part of the SEER rating of a central air conditioning system?.To learn more about heating and air conditioning systems, see these other blog posts: How can I find out the size of my air conditioner?.How can I tell whether the condenser (outdoor unit) is an air conditioner or heat pump?.How can I find out the SEER of my air conditioner?.How do I determine the age of my air conditioner?.To determine other key specs of your HVAC system, see one of these other blog posts: The second two numbers of the serial number are the year of manufacture, so the data plate for the Lennox furnace shown below indicates it was produced in 2013.
