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 to make your home cool this summer
Keep It Cool: How to Beat the Heat at Home This Summer
Duct Cleaning
How to Clean Ducts Yourself
Modern metallic floor fan in a plant-filled room
How to Keep Your House Cool Without AC
Fan in Window
How to Use Fans to Cool a Room
Cleaning Air Conditioner Coils
How to Clean Air Conditioner Coils
Air Duct Cleaning
How Much Does It Cost to Clean Air Ducts?
thermostat digital Programmable on wall
What Is EM Heat on a Thermostat?
Thermostat on wall
5 Reasons Your Thermostat Isn’t Working
Fan Coil Unit close-up of fins on air conditioner
How to Use a Fin Comb
Air vent cover for room heating/cooling and return furnace air
9 Reasons Your Furnace Isn’t 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
Heating Register on Window Sill
Common Reasons Your Furnace Might Not Be Working As Well As You’d Like
Infrared heater
All About Infrared Space Heaters
Commerce Photo Composite
The Best Time to Buy an Air Conditioner
Cleaned window air conditioner next to pink flower bouquet
How to Clean a Window Air Conditioner
HVAC Thermostat
How to Repair Your HVAC
Fan in Window
How to Set Up 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
House HVAC Floor Vent Register
Should You Have Your Air Ducts Cleaned? Here's What to Know
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
How to Replace a Furnace Thermocouple or Electronic Flame Sensor
Hot water heater and furnace in basement
Troubleshooting an Electronic Ignition Furnace That Won't Light
Fire and smoke detector on beige wall
Where to Position the Fire and Smoke Detectors in Your Home
Line-voltage thermostat wired for a baseboard heater being adjusted
How to Wire a Line-Voltage Thermostat for a Baseboard Heater
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)
Diagram of a humidifier's air duct system
How a Furnace-Mounted Home Humidifier Works
ceiling fan
10 Noisy Fan Causes and Fixes
lit gas burner on a stove
Common Signs of a Natural Gas Leak
pile of firewood
The Best Firewood for Your Wood Stove or Fireplace
Thermostat on wall
How to Adjust a Thermostat's Heat Anticipator
Fix Wall-Mounted Electric Heater
How to Repair an Electric Wall Heater
window unit air conditioner
Choosing the Right Size (Capacity) for Your Air Conditioner
Yellow dryer vent hooked up in tight space
How to Install a Dryer Vent in a Tight Space
Side by side comparison of rigid foam and fiberglass insulation
Rigid Foam vs. Fiberglass Insulation Comparison Guide
Downstairs basement of modern home with wood trim
Reasons Why You Have a Cold Basement
Brown home and tree covered with snow in winter
11 Tips for Protecting Your Home From Freezing Temperatures
Tips for Positioning a Bathroom Vent Fan
Bathroom exhaust fan in ceiling above shower curtain
How to Choose a Bathroom Exhaust Fan
Best Air Filter Subscriptions
Best Air Filter Subscriptions
Hands holding cellulose insulation
What You Should Know About Blow-In Cellulose Insulation
Mug with marshmallows and painted mountain-scape on side next to stacked books
13 Tips for Staying Warm Without Turning Up the Heat
Appliances in basement
A Visual Guide to a High-Efficiency Condensing Furnaces
Empty Vacant Apartment Real Estate
How to Install a 240-Volt Electric Baseboard Heater
Closeup of a baseboard heater thermostat
How to Install a Line Voltage Thermostat for a Baseboard Heater
Fan rotating in a room
Which Direction Should a Ceiling Fan Rotate?
thermostat on a wall
Understanding the Terminal Letters on a Thermostat
Wall-Mounted Electric Convection Heater
Electric Wall Heater: What to Know Before You Buy
Service Man Working on Furnace
5 Common Problems With High-Efficiency Furnaces
Large fan cooling room with houseplants
10 Ways to Cool Down a Room Fast
An electronic furnace
3 Common Furnace Ignition Methods
Woman adjusting digital thermostat
Choosing the Right Thermostat for Your Furnace
Replaced water heater with expansion tank
How to Replace a Water Heater
Air Conditioner
The Basics of 120/240/250-Volt Air Conditioner Circuits