Heating and Cooling Systems

Our experts explain how to repair the most common causes of central air conditioning service failures.

You and your family can breathe easier with the best air purifier for a basement. Filter smoke, pet dander and...

Family Handyman's Sales Editor searched high and low to find the best electric fireplace deals. Luckily for you, she found...

The Corsi-Rosenthal Box can reduce the amount of virus-laden aerosol particles in your home as well as any fancy filter...

Prevent moisture damage and keep mildew growth under control with the best dehumidifiers for basements.

If you have a drafty home, are always cold or just want to add some supplemental heat, there's an energy-efficient...

Air duct cleaning isn't that expensive, but it's too much if you don't really need it. Find out here when...

If you're in the market for a portable electric space heater, remember to consider the operating costs. Here's what you...

Modern thermostats offer more functions than older ones. You can often swap a new one for an old one, but...

Your old Honeywell thermostat is a workhorse with some nifty features, especially if it's programmable. Here's some help figuring out...

This time of year, space heater use goes way up—and so do fires. Know what you're buying and stay safe...

Is your furnace blowing cold air? Here are some troubleshooting tips and simple DIY repairs for the most common causes...

Have a gas furnace that won't light? Carbon deposits on the ignitor could be why. Learn how to clean a...

Our team tested a gaggle of smart thermostats--and we found our four favorites on the market.

If you suspect furnace problems, try these eight furnace fixes you can do yourself before calling a pro.

These infrared space heaters are well-suited for indoor and outdoor use. They also start to work right away—no warm-up time...

A heat pump doesn't generate heat; it transfers it from one place to another. It's an appliance with a bright...

New energy incentives make this a great time to install or upgrade a heat pump.

Federal incentives and state regulations weigh heavily in favor of heat pumps these days, but a heat pump may not...

Is an infrared space heater right for your space? We've talked to some experts to summarize what they are, how...

Natural gas, electricity, propane, heating oil. Whatever fuel you use, heating bills are going up this winter. Here's what the...

Geothermal heat pumps are one of the most efficient ways to heat and cool your home. Is it the right...

How to finesse your home's energy efficiency by using the new rebates and tax incentives for HVAC, solar and more.

A recent study has the answer, and it's more complicated that a simple "yes" or "no." It depends on several...

A moss air conditioner? Is this a prank? Nope, just a good-looking AC that's better for the environment than most.

Choosing a heating method is one of the first steps to building a sauna. Here we look at four...

Summer temps are heating up. We tested this TikTok swamp cooler hack that claims to cool you down. Did it...

We spent a week testing this portable AC unit at a normally hot and sticky cabin. Here's what we found.

Installing a window air conditioner is an easy way to keep your cool.