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HVAC stands for Heating, Ventilation, and Air Conditioning, which refers to systems that regulate indoor temperature, air quality, and humidity.
The lifespan varies by type:
Furnaces: 15-20 years
Air Conditioners: 10-15 years
Heat Pumps: 10-15 years
Boilers: 15-30 years
Regular maintenance can extend the lifespan of the unit.
The size depends on your home’s square footage, insulation, and climate. A professional load calculation (Manual J calculation) can determine the correct size.
Basic fiberglass filters: Every 30 days
Pleated filters: Every 60-90 days
HEPA or high-efficiency filters: Every 6-12 months
Consider replacement if:
The unit is 15+ years old.
Repairs cost more than half the price of a new system.
Your energy bills have significantly increased.
It’s recommended to service your HVAC system twice a year—once in the spring for cooling systems and once in the fall for heating systems.
Change air filters regularly.
Schedule routine maintenance.
Seal air leaks in ducts and windows.
Upgrade to a programmable thermostat.
Ensure proper insulation in your home.
The thermostat may be set incorrectly. The air filter could be dirty, restricting airflow. The pilot light may be out (for gas furnaces). There may be an issue with the ignition system.
This is called short cycling and can be caused by:
A dirty air filter
A malfunctioning thermostat
An oversized furnace
A clogged heat exchanger
Heat pumps provide both heating and cooling and work best in mild climates.Furnaces generate heat by burning fuel (gas/oil) or using electricity. They are better for colder climates.
The air filter may be dirty.
Refrigerant levels might be low.
The thermostat settings may need adjustment.
The evaporator or condenser coils may be dirty.
Low refrigerant levels.
Dirty air filter blocking airflow.
Malfunctioning fan motor or blower.
Cold outdoor temperatures (below 60°F).
A clogged condensate drain line.
A dirty air filter.
Low refrigerant levels causing coil freezing.
Banging: Loose parts or duct expansion.
Hissing: Possible refrigerant leak.
Clicking: Electrical component issues.
Whistling: Blocked air filters or duct leaks
You can change air filters, clean vents, and check thermostat settings. However, professional maintenance is recommended for inspections, refrigerant checks, and deep cleaning.
Typically every 1-3 months, depending on usage and air quality.
Summer: 75-78°F (higher when away)
Winter: 68-72°F (lower when away)
For energy savings, adjust 7-10°F when not home.
Use a programmable thermostat.
Seal duct leaks and improve insulation.
Schedule annual HVAC maintenance.
Use ceiling fans to help circulate air.
Yes! Smart thermostats help optimize energy usage, learn your habits, and reduce heating/cooling costs by 10-20%.
Check the thermostat settings.
Replace or clean the air filter.
Ensure the circuit breaker hasn’t tripped.
Check if the outdoor unit is blocked.
If these steps don’t work, call a professional HVAC technician.
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