Some people refer to the heating and air conditioning systems as the "comfort systems." If you've ever had to be without one in the dead of winter or the heat of summer, lack of comfort may be an understatement. Simple maintenance with a HVAC checklist is something that every homeowner can perform.

Periodically

• Change your filter every 90 days; every 30 days if you have shedding pets.
• Maintain at least two feet of clearance around outdoor air conditioning units and heat pumps.
• Don't allow leaves, grass clippings, lint or other things to block circulation of coils.
• Inspect insulation on refrigerant lines leading into house monthly and replace if missing or damaged.

Annual, in spring

• Confirm that outdoor air conditioning units and heat pumps are on level pads.
• Pour bleach in the air conditioner's condensation drain to clear mold and algae which can cause a clog.
• Avoid closing more than 20% of a home's registers to keep from overworking the system.
• Replace the battery in the home's carbon monoxide detector.

Even with the attention that perfoming this list will provide, it is recommended that you have your units serviced annually by a licensed contractor. Furnaces can be inspected for carbon monoxide leaks and preventative maintenance may help avoid costly repairs. Click Here if you'd like a recommendation.