HVAC

HVAC stands for heating, ventilation, and air conditioning, and it's essentially what keeps your home comfortable year-round. Whether you're troubleshooting a furnace that won't kick on, upgrading to a more efficient system, or scheduling routine maintenance, understanding your options makes all the difference. Angi helps you connect with local pros and provides the resources you need to make informed decisions about your home's climate control.
HVAC Articles and Advice
Electrician checking AC unit
If you’re asking yourself, "Who do I call to check my HVAC?" The answer is simple: an HVAC technician. Read more to find out why.
Outdoor HVAC units on a concrete slab
The location of your HVAC unit matters more than you might think. Here’s where to put an HVAC unit for optimal performance and longevity.
Mother showing son how to adjust smart thermostat at home
From chilly winters to balmy summers, your home’s HVAC helps keep you comfortable. Use this HVAC inspection checklist to ensure it’s doing its job every season.
Woman relaxed in living room
Maintaining your HVAC will help you avoid downtime on hot and cold days. Complete this HVAC maintenance checklist and keep things running smoothly.
A couple with mobile phone relaxing on sofa
Saving energy on an HVAC system is an absolute must if you want to slash energy costs. Check out these 11 tips to make your HVAC system more energy-efficient.
Woman setting up thermostat in the room
Discover the factors affecting HVAC zoning system cost, energy savings, DIY options, and expert insights. Get informed about your home’s heating and cooling.
The front door of an exposed brick house
A blower door test can identify air leaks in your home and help boost energy efficiency. Use this blower door test cost guide to see what your test will total.
New air conditioner units on a concrete slab
Average costs of HVAC inspections vary based on house size, location, and type of HVAC system. Follow our easy guide to gauge your home’s HVAC inspection cost.
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Common HVAC Questions

Winterization or activation typically takes 1-2 hours, depending on the number of zones and system complexity.

On average, professionally applied residential window tinting can last anywhere from five to 25 years. The quality of the film material and installation help to determine if film will stay. In addition, gently cleaning windows with film can increase their longevity. Harsh and abrasive cleaners, alcohol-based and ammonia-based cleaners, and sharp scraping tools and scrubbers can all prematurely destroy the film's surface. Use a microfiber towel and gentle cleaning solutions to get rid of dirt and residue to prolong a tint's lifespan.

The best way to tell is if there’s a label, but there are other methods. Gas heaters will have gas lines leading to the unit, with a pilot light near the bottom of the tank (this is sometimes behind a small panel). Electric units often have lights to signal if they’re heating or not and may have electric panels to control the unit. If there is a vent pipe leading from your heater, it’s almost certainly gas-powered.

Yes, open floor plans can be more expensive to build than non-open floor plans. The primary reason is the need for additional structural support to ensure stability, which can increase construction costs. Additionally, open floor plans need powerful HVAC systems to maintain temperature in a wider space. Finally, open floor plans need more flooring to cover a large area. If you are buying a home with an open floor plan, you won’t see dramatic price differences compared to a home with more rooms.

BTUs, or British Thermal Units, measure the amount of heat needed to increase a pound of water’s temperature by 1 degree Fahrenheit. In HVAC, tonnage refers to a system’s ability to cool a space by removing heat, and it is dependent on how many BTUs your unit absorbs and removes per hour.