System Maintenance

System Maintenance

Air filter

Filters & Vents

A dirty filter slows down air flow due to the dust and dirt that builds up, and makes the system work harder – wasting energy. It can also lead to system failure and expensive maintenance. Be sure to check, clean or replace filters on furnaces and air conditioners at least once a month. Similarly, it’s important to keep air vents, warm-air registers, baseboard heaters, and radiators clean and unobstructed, as well as the area around outdoor air conditioners and heat pumps.

Air duct being being cleaned with a brush


Ducts are used to distribute conditioned air from your furnace and central air unit throughout your house, and when properly installed can make your home more comfortable and energy-efficient. However, in a typical house, about 20% of air traveling through ducts is lost due to leaks, holes, and poor connections. This can add hundreds of dollars a year to your energy bills and make rooms stuffy and difficult to heat and cool.Ducts are often concealed in walls, ceilings, attics, and basements which can make repairing them a challenge. It is a good idea to work with a professional when making duct system improvements. If you choose to take the project on yourself, start by sealing air leaks using mastic sealant, metal tape or other heat-approved tapes (not duct tape). Insulate all the ducts that you can access and make sure that the connections at vents and registers are well-sealed where they meet the floors, walls, and ceiling.

Person cleaning a ductless heat pump


To ensure optimal performance and prolong the life of your heating and cooling equipment, it’s a good idea to schedule annual checkups with a professional technician. They are trained to do a thorough inspection for proper function and make necessary adjustments or tune-ups.

Four heat pumps outside of a home


If your equipment is old, needs frequent repairs or just doesn’t keep your house comfortable despite your maintenance efforts, you may be ready for an upgrade. If you’re in the market for a new heating and/or cooling system consider equipment that is ENERGY STAR® qualified. When purchasing an air conditioner, look for a high Seasonal Energy Efficiency Ratio (SEER). The current minimum is 13 SEER. The most efficient system for your home will also depend on other factors related to where you live such as the climate and your need for heating and cooling, the size of the space you are conditioning and the effectiveness of the insulation inside your house.