HVAC Frequently Asked Questions and Answers

It’s time to get personal about your HVAC.

Don’t worry, you don’t have to go crawling into any vents or break out the toolbox.

You just have to read this list of frequently asked questions to learn the nitty-gritty about your home’s heating and air conditioning system.

The more you know, the easier you can spot early signs of trouble, saving you hundreds of dollars in costly repairs.

So also unreasonably expensive utility bills and a major headache, be it from stress or allergens.


1. What does HVAC mean?

HVAC stands for “heating, ventilation and air conditioning.” That’s a bit of a mouthful, right?

Stick with HVAC so you can cut right to the chase whether you’re asking some questions at your local hardware store or trying to find a good technician near you.


2. Why won’t my air conditioner turn on?

There are a few reasons why your HVAC system isn’t kicking on by itself.

It may be too cold outside, or you may not have the thermostat set to COOL mode.

You should also check your vents; sometimes the floor vents wind up closed and obstruct cool air or get blocked by furniture.

A professional technician can show you where all your HVAC system’s switches, knobs and air handlers are in a matter of minutes so you never have to break a sweat trying to stay cool again.


3. How often do I need to clean my vents?

You should have your vents checked at least once a year.

If you live in a climate with lots of air pollution, you may want to have your system checked out twice a year: once in the fall and once in the spring.


4. Why won’t my heater stop running?

Poor ventilation can cause systems to run non-stop.

Your thermostat may not be properly adjusted, or you could have a blockage in your system that makes it hard for air to reach its destination properly.

A dirty filter could reduce air flow, which makes it impossible for your heater to reach the right temperature.

Some homes have HVAC systems that are too small to efficiently heat the property, so having yours checked by a professional is the best way to troubleshoot any immediate causes and potential hazards.


5. How can I save money on my power bill without buying a new system?

You may not be able to swing a couple thousand for an HVAC upgrade, but that doesn’t mean you’re forced to pay exorbitant energy bills for the rest of your life.

Routine maintenance, a better air filter and a programmable thermostat that’s approved by ENERGY STAR can cut back your consumption and lower your heating and cooling expenses.


How do I find a good technician?

There are some important HVAC questions to ask when you’re looking for a tech.

You should consider licensure, cost of services and installation timeframes among other things.

Doing your research before you call a company can help guide the conversation and make you feel empowered and ensure you get the highest quality of service for the best price.



Charlie Teschner started MESA Plumbing, Heating, and Cooling in 1982.

Charlie has a journeyman and master plumber’s license. He was raised with a strong work ethic and he now applies those values to tasks such as Longmont, CO heating repair.