If you’re like most people, you probably don’t think too much about your home’s HVAC system. However, if you’re having problems with your heating or cooling, it can be a big deal! Before you call an HVAC technician in Provo or wherever you are, though, there are a few things you should know. Here are 9 common HVAC myths, busted:

• MYTH: It’s better to leave your heating or cooling system on all the time.

BUSTED: Actually, it’s much better for your HVAC system to cycle on and off as needed. This prevents wear and tear on the system, and can save you money on your energy bill.

• MYTH: Closing vents in unused rooms will save energy.

BUSTED: This is a myth that can actually end up costing you more money in the long run. Closing vents puts extra strain on your HVAC system, and can eventually lead to a breakdown. This is especially true if you have an older system.

• MYTH: Changing your air filter regularly isn’t necessary.

BUSTED: This is one of the most important things you can do to maintain your HVAC system. A clean air filter allows your system to run more efficiently and prevents particles from being circulated through your home.

• MYTH: Bigger is always better when it comes to HVAC systems.

BUSTED: Actually, a system that’s too big for your home can be just as bad as one that’s too small. A system that’s too big will cycles on and off more frequently, which can shorten its lifespan. Additionally, a system that’s too big will not remove humidity from the air properly, resulting in a stuffy, uncomfortable home.

• MYTH: It’s okay to place your HVAC unit in the shade.

BUSTED: Believe it or not, placing your unit in the shade can actually cause it to work harder. The unit will have to work to cool the air that’s passing through it, which can lead to a shorter lifespan for your system.

• MYTH: HVAC systems don’t need maintenance.

BUSTED: Just like any other mechanical system, your HVAC system needs regular maintenance in order to function properly. A simple tune-up can often prevent major problems down the road.

• MYTH: My home’s HVAC system is too old to be repaired.

BUSTED: This is simply not true. Many parts for older HVAC systems are still available, and a qualified technician should be able to repair your system.

• MYTH: I don’t need to worry about my HVAC system until it breaks down.

BUSTED: By the time your system breaks down, the damage has already been done. It’s much better to have regular maintenance performed so that any potential problems can be caught early.

• MYTH: I can save money by performing HVAC maintenance myself.

BUSTED: Unless you’re a qualified technician, it’s best to leave HVAC maintenance to the professionals. Attempting to perform maintenance yourself could void your warranty, and could even cause further damage to your system.

Now that you know the truth about these common HVAC myths, you can be sure that your home’s heating and cooling system is in good hands. Be sure to have regular maintenance performed, and don’t hesitate to call a technician if you have any concerns.