How do I know when to repair or replace?
“An air conditioner should last about 15
years. If a unit that’s more than a decade old begins to falter, consider total replacement of inside and outside units
rather than a major repair. Usually only one of the system’s major components (coil or compressor) fails, but it’s
usually more cost-effective to replace the whole system at once. Unmatched major components can compromise efficiency and
lead to added repairs.”
--1999 Consumer Reports Buying Guide, Central Cooling Systems, page 143
When is it time to replace?
Certain telltale signs indicate it's time to consider replacing
heating and cooling equipment, or improving the performance of your overall system. It may be time to call a professional
contractor to help you make a change if:
Your heat pump or air conditioner is more than 10 years old.
Consider replacing it with a unit that has earned the ENERGY STAR label. Installed correctly, these high-efficiency
units can save up to 20 percent on heating and cooling costs.
Your furnace or boiler is more than 15 years
Consider replacing with an ENERGY STAR qualified furnace, which is 15% more efficient than a conventional
furnace. If you have a boiler, consider replacing with an ENERGY STAR qualified boiler that is 5% more efficient than a new,
Your equipment needs frequent repairs and your energy bills are going up.
cooling or heating equipment may have become less efficient.
Some rooms in your home are too hot or too cold.
Improper equipment operation, duct problems or inadequate insulation could be the cause.
No one is
home for long periods of the day and you do not have a programmable thermostat.
Install an ENERGY STAR qualified
programmable thermostat or have a good contractor install one and instruct you on its use — to start saving energy and
money while they're away or sleeping.
Your home has humidity problems.
Poor equipment operation,
inadequate equipment, and leaky ductwork can cause the air to be too dry in the winter or too humid in the summer.
Your home has excessive dust.
Leaky ducts can pull particles and air from attics, crawl spaces and
basements and distribute them throughout your house. Sealing your ducts may be a solution.
heating or cooling system is noisy.
You could have an undersized duct system or a problem with the indoor
coil of your cooling equipment.
Your score on the Home Energy Yardstick is below five.
That means your energy use at home is above average and you're probably paying more than you
need to on energy bills.