HVAC Frequently Asked Questions

It is usually found inside the blower compartment where the return air duct meets the furnace.

We recommend changing standard 1-inch filters every 1 to 3 months.

Turn off the furnace, open the filter door, and slide out the old filter. Insert the new one, ensuring the arrow on the frame points toward the furnace.

Short cycling puts massive stress on your system. Common causes include a clogged air filter, a dirty flame sensor, or an oversized furnace. If you have changed your filter and the problem persists, you likely need professional heating repair to prevent permanent damage to the heat exchanger.

First, check your thermostat. If the fan is set to "ON" instead of "AUTO," the fan will blow air even when the burners are off. If the setting is correct, your pilot light may be out, or a safety limit switch may have tripped due to overheating.

We generally follow the "50% Rule." This means if the cost of the repair is 50% or more than the cost of a new system, it’s generally smarter to invest in heating installation.

Carbon monoxide (CO) is odorless and invisible, which is why CO detectors are mandatory. However, visual signs include a yellow flickering burner flame, soot streaks, or excessive condensation on windows. Symptoms include headaches, dizziness, or nausea. If you suspect a leak, leave the house immediately.

Most modern furnaces use electronic ignition. If you have an older unit: Turn the gas valve to "OFF" and wait 5 minutes. Turn it to "PILOT," hold down the reset button, and light the pilot. Continue holding the button for one minute, then turn the valve to "ON."

Bigger is not always better. An oversized furnace will short-cycle and waste energy. The correct size depends on your home’s square footage, insulation quality, and window layout. We perform a "Manual J" load calculation to ensure the perfect fit.

Manufacturers require annual maintenance to keep your warranty valid. We recommend scheduling heating service every autumn to ensure your system is safe and efficient before the winter freeze hits.

This is the most common summer issue. It is often caused by a dirty air filter restricting airflow, a refrigerant leak, or a frozen evaporator coil. If replacing the filter doesn't help, you likely need air conditioning repair.

Water around your indoor unit usually means the condensate drain line is clogged, causing the drip pan to overflow. It can also indicate a frozen evaporator coil that is melting. This requires immediate attention to prevent water damage.

On extremely hot days (95°F+), it is normal for your AC to run continuously to maintain the temperature. However, if it runs constantly on mild days, you may have an undersized unit, dirty coils, or a refrigerant issue.

Cleaning your coils

You can gently rinse the outdoor AC coils with a garden hose (low pressure) to remove pollen and dirt. Do not use a pressure washer.

Cleaning your drain line

Pour a cup of distilled white vinegar down the access point near your indoor unit to kill algae and prevent clogs.

Ideally, AC maintenance should be performed once per year.

Homeowners generally cannot "recharge" their own AC. It is a closed system; if it is low on refrigerant, it means you have a leak. Simply adding more fluid without fixing the leak is a waste of money.

The average lifespan of a central air conditioner is 10 to 15 years. Regular maintenance can push this closer to 20 years, while neglect can cut it down to 8 or less.

BTU stands for British Thermal Unit. In AC terms, 12,000 BTUs equal 1 "ton" of cooling capacity.

You need the right amount of BTUs to cool your square footage. If the unit is too small, it won't cool; if it's too big, it won't dehumidify. We help you find the correct size for air conditioning installation.

A ductless HVAC system cools your home without ductwork. It consists of an outdoor compressor and wall-mounted indoor units. They are incredibly efficient and perfect for room additions or historic homes.

The Department of Energy recommends 78°F when you are home for maximum efficiency. However, comfort is personal. Every degree you raise the temperature can save you roughly 3% on cooling costs.

It is a system that heats and cools your home by moving heat rather than creating it.

Turn on your heat. If the outdoor unit starts running (spinning fan), you have a heat pump.

It extracts thermal energy from the outside air, even in freezing temperatures, and moves it inside.

Yes! Modern heat pumps are capable of handling Illinois winters. However, many homeowners choose a "dual fuel" system. This means they use a heat pump for mild days and a gas furnace backup for extreme cold.

They are more energy-efficient, but furnaces deliver "hotter" feeling air. The choice depends on your utility costs and comfort preferences.

The size heat pump you need will be calculated by HVAC professionals. This calculation is based on your home's insulation to handle 90% of your heating needs while still dehumidifying effectively in summer.

Because they run year-round, they typically last 12 to 15 years.

HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the entire system responsible for moving air between indoor and outdoor areas and heating/cooling your home.

Yes. The utility savings over 15 years often pay for the upfront difference.

SEER measures efficiency. 14-16 SEER is standard and reliable. 18+ SEER offers the best humidity control and the lowest monthly bills.

Look for three things:

1. Local Roots: A company rooted in the community (like a family-owned business).
2. Reputation: Recent 5-star reviews and responsiveness.
3. Transparency: Avoid phone quotes; always ask for an in-home assessment and upfront pricing.