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HVAC

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.

Reimagining Home Comfort at the TOH 2020 Farmhouse in Fairfield County

Learn how a multi-zoned heating and cooling system provides consistency and comfort at our latest Idea House.

Annual Furnace Cleaning Step-by-Step

Here’s how to do fall furnace maintenance and service your heating system before the cold weather kicks in.

Person removing baseboard heater covers.
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Baseboard Heater Cover Removal and Replacement

Here’s how to remove your old baseboard heater covers and replace it with a new one for a fresh, clean look.

The Best Space Heaters

We’ve rounded up 4 space heaters so you can select the right type to warm up your home.

17 Fireplace Remodel Ideas

We rounded up our favorite ideas to help you update your fireplace for a more modern look.

People carrying a wood stove insert to install it into a fireplace.
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How to Install a Wood Stove Fireplace Insert

Install a wood stove insert to increase efficiency and heat output from your fireplace.

Two people installing thermostatic radiator valve to an old radiator.
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How to Install Thermostatic Radiator Valves

We show you how to add a manageable control to your old radiator by installing a new thermostatic valve.

How to Seal a Door Gap

We show you how to use silicone weatherstripping to fill gaps in your door.

The 5 Best Dehumidifiers (2021)

A dehumidifier can help reduce the humidity levels in your home, preventing harmful bacteria and allergens from collecting in your living areas. In this review, the This Old House Reviews team delves into our top picks for dehumidifiers from Amazon. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

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How to Quiet Heating Pipes

This Old House plumbing and heating expert Richard Trethewey shows how to silence noisy heating pipes.

Person inspecting a steam heating system.
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The Pros and Cons of a Steam Heating System

Considering steam heat? We help you weigh the pros and cons so you can decide if it is right for you.

Brown Pellet Stove
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How to Install a Pellet Stove

We show you how to add a pellet stove as a supplementary, efficient heat source to your house step-by-step.

The Best Fireplace Inserts of 2021

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. Keep reading for our recommendations on the best fireplace inserts. The products included in this article are available at various local home improvement stores and online retailers like Amazon.

Want Central Air Conditioning? Read This Before You Install

Tired of your window AC unit? Here’s what you need to know about how central AC systems work before investing in cooling your entire house.

Person installing thermostatic steam radiator valve.
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How to Install a Thermostatic Steam Radiator Valve

Add controls to a steam radiator with these step by step instructions and video to guide you.

Home Heating Guide For Beginners

Heating is the most basic requirement of a house. Learn about the various types of home heating systems and how to maintain them.

Pellet Stoves: Clean Heat For the Whole House

Installing a pellet stove in your house is a cleaner and greener way to warm your environment. Learn how it works, burns and what the costs are.

Heat Pump vs Furnace: What’s the Difference?

Choosing between a heat pump system or furnace depends mainly on the climate you live in. We explain how each one works and their costs.

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How to Seal Windows and Doors for Winter

Tom Silva shows you how to keep cold air from coming through windows and doors.

How to Size a Ceiling Fan

A ceiling fan is a cost-effective way to cool off without cranking up the AC. Read on for tips on how to determine the size of a ceiling fan and how to install one.

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.

People installing new combination boiler in a basement.
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How to Install a Combination Boiler and Hot Water Heater

Replace two devices, your water heater and boiler, with a single combi boiler unit that’s more efficient and compact.

9 Air Conditioner Maintenance and Care Tips

Servicing your air conditioning regularly helps keep costs down and your AC in great condition.

Geothermal Heat Pump: How It Works

Learn how a geothermal heat pump system works, how cost-efficient it can be, as well as other advantages.

What You Need to Know About the Freon Ban

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How to Install a Ductless Mini-Split Air Conditioner

This Old House plumbing and heating expert Richard Trethewey explains how the pros retrofit a compact cooling unit.

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How to Select a Portable Air Conditioner

Ask This Old House plumbing and heating expert Richard Trethewey walks host Kevin O’Connor through the choices in air conditioners.

Central Air Installation: Costs & Best Units to Get

Want to install central AC to your home? Read this guide to learn more about central air installation, from installation costs to selecting the best unit.

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How to Install a Whole-House Dehumidifier

Ask This Old House plumbing and heating expert Richard Trethewey shows how to control humidity throughout the house all year round.

Pellet Stoves: A Buyer’s Guide

Turn down the household thermostat while warming your rooms, providing ambience, and reducing your energy bills.

Too Much Dust

Why is the house so dusty even when the air filters are clean?