HVAC Basics, Guides & How Tos

HVAC

The heating, ventilation, and cooling systems in your home are vital to your comfort and safety. Learn all about HVAC systems, maintenance, and equipment.
how long does a furnace last
Don't Wait to Replace Your Furnace This Winter—9 Signs You Need a New One
Repair Furnace
How Much Does Furnace Repair Cost? What to Know to Be Prepared This Fall
Furnace
What Size Furnace Do You Need? 9 Things You Should Consider Before You Buy
replacing a furnace filter
9 Signs That You Should Replace Your Old Furnace Now, According to an HVAC Pro
Woman emptying the water container of a dehumidifier
Does a Dehumidifier Actually Cool a Room? Plus 7 Tips to Cool Your Home Fast
Keeping your bedroom cool in the summer
Is Your Second Floor Always Hot? 10 Easy Fixes That Work, According to HVAC Pros
Person changing an air filter
Are You Changing Your Air Filter Enough? Why Pros Recommend Doing It ASAP
air conditioner tips
7 Things You Should Always Do to Keep Your Air Conditioner Running Smoothly
window air conditioner
Why Is Your Window AC Not Blowing Cold Air? 5 Reasons Why and How to Fix It
Air Conditioner
8 Reasons Your AC Unit Is Leaking Water (and How to Fix It)
Outside AC unit in summer
Why Isn't My Outside AC Unit Turning On? 6 Causes and How to Fix Them Fast
Air conditioner condensor
Why Is My AC Fan Not Spinning? 7 Causes and How to Fix It
cleaning an AC filter in a wall air conditioning unit
How to Clean an Air Conditioner Filter for Better Efficiency and Air Flow
Person turning on a dehumidifier in a living room
21 Tips to Lower Humidity in Your House That Are Actually Effective
Air conditioner unit with tools
How Much Does an AC Compressor Actually Cost?
Person setting the thermostat
This Is the Right Temperature for Your Air Conditioner in Summer, According to Pros
Person installing a new air conditioner in a home
How Much Does an Air Conditioner Really Cost to Install? What to Know
Humidifier in a home reading 35%
This Is the Ideal Humidity Level for a Comfortable Home, According to Pros
Home heat pump during winter
Heat Pump vs. Furnace: What's the Difference, Really?
Thermostat
Experts Agree: This Is the Best Thermostat Setting for Winter
Wood Stove
How to Install a Wood Stove for Inexpensive Heating This Winter
removing a furnace filter
Here's How Often You Should Really Change Your Furnace Filter
air conditioner leaking
Why Is Your Window Air Conditioner Leaking Water and How to Fix It
Removing the top and side condenser covers
What to Know About HVAC Maintenance Costs (Plus How to Help Your System Last Longer)
swamp cooler
How to Build a DIY Swamp Cooler and Beat the Heat
How to choose the right size humidifier
What Size Dehumidifier Do I Need?
Central Air Conditioner (AC)
How Much Does It Cost to Install Central Air?
How to install a smart thermostat
How to Install a Smart Thermostat
Closeup of cleaning a furnace flame sensor with sandpaper
How to Clean a Furnace Flame Sensor
Gas vs electric fireplaces
Gas vs. Electric Fireplace Comparison Guide
How to bleed a radiator
How to Bleed a Radiator
Cozy house with snow during winter
Don't Wait to Protect Your Home From Winter Weather —15 Tasks You Should Tackle Now
Bedroom with vaulted ceilings and settee at end of bed.
7 Smart Tricks You Should Try to Keep Your Upstairs Cool, According to Experts
How to make your home cool this summer
Keep It Cool: How to Beat the Heat at Home This Summer
Finished basement
Pros Say This Is the Best Humidity Level for a Comfortable Basement
Duct Cleaning
How to Clean Ducts Yourself
bathroom ventilation
Bathroom Ventilation: Everything You Should Know
Fan in Window
How to Use Fans to Cool a Room
patio privacy ideas
What Happens if Your House Is Too Hot? 10 Problems and Solutions
How to clean HVAC conditioner coils
How to Clean Air Conditioner Coils
Air Duct Cleaning
How Much Does Air Duct Cleaning Cost?
thermostat digital Programmable on wall
What Is EM Heat on a Thermostat?
Thermostat on wall
7 Common Reasons Your Thermostat Isn't Working
Air vent cover for room heating/cooling and return furnace air
11 Reasons for a Furnace Not Blowing Hot Air
Gas Furnace
What It Means When Your Furnace Is Short-Cycling
Control valve on gas water heater tank being checked with bottom panel removed
6 Common Reasons Your Gas Water Heater May Not Be Working
Infrared heater
All About Infrared Space Heaters
Cleaned window air conditioner next to pink flower bouquet
How to Clean a Window Air Conditioner
HVAC Thermostat
How to Repair a Home Air Conditioner
Fan in Window
How to Make a DIY Air Conditioner
Ceiling fan with fixed chain to turn on and off
How to Fix or Replace the Ceiling Fan Chain Quickly
person changing fan speed on an air conditioner
Adjust Your Air-Conditioner Settings
Gas furnace
How to Light the Standing Pilot Light on a Gas Furnace
Gas Furnace and Water Heater
How to Test a Furnace Pressure Switch
Fire and smoke detector on beige wall
Where to Put Fire and Smoke Detectors in Your Home
Steam vs Hot Water Radiators
Steam vs. Hot Water Radiator Comparison Guide
Ventless gas fireplace decorated with surrounding bricks, houseplants and couch
How to Pick Out a Ventless Gas Fireplace
Baseboard heater
Convection vs. Hydronic Electric Baseboard Heater
Fire burning in wood stove
Wood Heat vs. Pellet Stove Comparison Guide
AC unit in a living room
Window Air Conditioning Chart (BTUs for Room Size)