Heating & Cooling
How To Install a Forced-Air Bypass Damper in Your Home
Are your vents whistling? It could be due to increased pressure. Learn how to install a forced-air bypass damper with this guide and video.
How To Quiet a Banging Steam Radiator
This Old House plumbing and heating contractor Richard Trethewey demonstrates how to silence a rattling radiator.
How to Upgrade Your Baseboard Heater with Slip-On Covers
This Old House plumbing and heating contractor Richard Trethewey reveals a quick, easy way to replace a damaged baseboard heater.
17 Fireplace Upgrades
We rounded up 17 ideas to help you update and modernize your fireplace whether you have a tile fireplace or a brick fireplace.
All About Gas Fireplaces: Types, Costs, and Installation
We break down the different types of gas fireplaces for your home, questions to consider, key fireplace features, and costs.
10 Ways to Beat the Heat
Staying cool this summer doesn't necessarily mean you have to pay a fortune to keep the air conditioning running day and night
How to Convert Radiators into Multi-Zone Heating
Upgrade an old radiator heating system with This Old House plumbing and heating expert Richard Trethewey.
How to Install Radiant Heat Under a Solid Wood Floor
This Old House general contractor Tom Silva shows how to run radiant heat tubing under a new hardwood floor
How to Retrofit Radiant Heat From Above
This Old House plumbing and heating expert Richard Trethewey shares tips for installing new radiant-heat tubing on top of an old subfloor when there's no access from below
Preparing a Home for a Blower-Door Test
When doing an energy audit in preparation for weatherizing a home, you have to seal cracks and openings in the building before you turn on the fan
The Crawl Space Vent Question
To vent or not to vent—finally someone has done the right tests and come up with an answer.
Installing a Whole House Fan
This Old House general contractor Tom Silva installs a whole house fan to keep a homeowner's house cool without central air conditioning.
What You Need to Know About Electric Radiant Heating
In this video and guide, This Old House plumbing and heating contractor Richard Trethewey explains the basics of electric radiant heat.
How To Retrofit Air Conditioning Using Mini Ducts
In this video and guide, we explain how a mini-duct system works and the benefits of this flexible cooling system.
The Best Fireplace Inserts of 2024
Adding a fireplace insert to a living room or other area of your home can help keep you warm, and cut down on expensive heating bills, without the hassle of maintaining a traditional wood fireplace. Here are out top fireplace insert recommendations.
How To Install an Energy-Saving Programmable Thermostat
Save on your energy bill with a programmable thermostat. Learn how to install an energy-saving thermostat in our guide.
What You Need to Know to Install a Whole House Fan
This Old House general contractor Tom Silva shows a quick and clever way to keep a home cool by installing a whole house fan.
A Comprehensive Guide for How To Quiet Noisy Heating Pipes
This Old House plumbing and heating expert, Richard Trethewey, demonstrates how to silence noisy heating pipes and quiet your house down.
How To Install Thermostatic Radiator Valves
This Old House expert Richard Tretheway shows you how to install a thermostatic radiator valve step by step in this video.
The Best Space Heaters
We’ve rounded up 4 space heaters so you can select the right type to warm up your home.
9 Air Conditioner Maintenance and Care Tips
Regularly servicing your air conditioner helps keep costs down and your AC in excellent condition. Read on for more tips on keeping up with your AC’s maintenance.
Installing Radiant Floor Heating in Existing Homes
Retrofitting radiant heating into your home will not only keep you warm but help you save on energy bills too.
Quick and Easy Weatherstripping With DIY Products
Our guide will help you choose and install the best DIY weatherstripping products for your home, saving you money on your energy bills year-round.
Geothermal Heat Pump: How It Works
Learn about how geothermal heat pump systems work, how cost-efficient they can be, and other advantages.
How to Seal a Door Gap
Learn how to use silicone weatherstripping to fill gaps in your door
Balancing a Ceiling Fan
Is your ceiling fan wobbly and rattling? This guide will show how to easily and safely balance and level your ceiling fan blades.
How to Install a Portable Air Conditioner
In this how-to video, This Old House plumbing and heating contractor Richard Trethewey offers a quick and easy way to cool off a room.
How To Install an Air Valve for a Hot Water Heating System
Air that gets trapped in your hot water heating system can leave homeowners in the cold. Learn how to install an air valve for a hot water heating system in our step-by-step guide.
How to Install a Programmable Thermostat
Installing a programmable thermostat? Watch our how-to video with This Old House plumbing and heating contractor Richard Trethewey showing how to install an automatic, fully programmable thermostat
How To Build a Radiator Cover in 5 Simple to Follow Steps
Dress up an ugly radiator with a custom-made MDF cover as shown by This Old House general contractor Tom Silva.
How to Add a Humidifier to a Forced-Air System
In this how-to video, This Old House plumbing and heating contractor Richard Trethewey demonstrates how to add a humidifier to a forced-air system.
How to Fix a Noisy Forced Air System
In this how-to video, This Old House plumbing and heating contractor Richard Trethewey shows how to quiet a loud heating duct.