clock menu more-arrow no yes

How to Heat a Garage Workshop

Ask This Old House plumbing and heating expert Richard Trethewey travels to Akron, Ohio to install a garage heater.

How Much Does a Furnace Cost? (2021)

If you need to repair or replace your furnace and are wondering about general furnace costs, keep reading for a detailed look at furnace types, pricing factors to consider, and common repair costs.

How Much Does an Air Conditioner Cost?

In this guide, we provide details on air conditioner costs, types of units, repairs, and an explanation of what goes into AC system pricing.

How Much Does a Heat Pump Cost?

Buying and installing a heat pump for your house has many benefits. Keep reading to learn more about how each type works, what it costs, and what to look for in your purchase.

The 5 Best Portable Air Conditioners (2021 Review)

Portable air conditioners act as supplemental cooling to make you more comfortable when it’s hot and humid outside. In this review, the Old House Reviews Team researched the five best portable air conditioners on Amazon to help you find the product that’s right for you and your home. The products included in this article are available at various home improvement stores, local home centers, and online retailers like Amazon.

Second Nature Air Filter Review 2021

Clogged air filters can lead to HVAC issues and cause respiratory problems if they aren’t replaced. Second Nature sends customers high-quality air filters of all different sizes as part of a convenient subscription service. Read our review to learn more.

Best Air Filter Subscription Services (2021)

To simplify the process of replacing your air filters, read on to discover the best air filter subscription delivery services with top satisfaction guarantees, filter varieties, and shipping options.

Aire Serv Reviews and Services

Aire Serv is an HVAC company that provides a variety of customer guarantees, an advantage plan, and upfront pricing. In this review, we share Aire Serv reviews and examine the company’s services, availability, cost, and more.

One Hour Heating and Air Reviews 2021

One Hour Heating and Air Conditioning is known for its motto: "Always On Time… Or You Don’t Pay A Dime!" In this article, the This Old House Reviews Team shares customer reviews and examines the company’s coverage options, customer service, and more.

All About Furnace Replacement: Cost & When to Do It

Replacing a furnace is a big task with a big price tag. However, having a home warranty can go a long way toward minimizing furnace replacement costs.

Michael & Son Review (2021)

In this Michael & Son review, we examine the HVAC and plumbing services the company offers in Virginia, Maryland, and North Carolina.

Service Experts Heating & Air Conditioning Reviews and Services

In this article, we examine reviews of Service Experts Heating & Air Conditioning and discuss coverage options and pricing. Read on to learn more.

ARS Rescue Rooter Review (2021)

In this ARS Rescue Rooter review, the This Old House Reviews Team shares customer reviews and examines the company’s services, cost, and customer service.

Ask TOH Season 2, Ep25, Tom Silva replaces weatherstripping

How to Weatherstrip an Exterior Door

This Old House general contractor Tom Silva shares tips for fixing a drafty door

Filed under:

Why Is My Air Conditioner Not Cooling?

Is your air conditioner not cooling? From refrigerant leaks to a malfunctioning compressor, these are five reasons why your air conditioner isn’t cooling and ways you can troubleshoot and prevent the issue.

How to Install a Window AC Unit

Window air conditioning units may seem intimidating, but they’re actually quite easy to install. With a bit of background knowledge, the right tools, and a guide to show the way, cooler temperatures are on the horizon—even when it’s boiling outside.


How to Install Room-By-Room Zoning in an HVAC System

Ask This Old House plumbing expert Richard Trethewey learns about an HVAC system that allows each room to be zoned out using smartphone technology.

Richard Trethewey moves a baseboard heater.

How to Move Baseboard Heating

Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner by moving a hot water baseboard heater from one side of a room to another.

Basic Types of Home Air Conditioning Systems

There are several types of air conditioning units to choose from, depending on the specific needs of your home. Learn the basics of the most common AC systems and how to maintain them.


How to Replace a Steam Radiator

Ask This Old House plumbing and heating expert Richard Trethewey replaces a small radiator with one that’s the correct size

An Easy Guide to Gas Fireplaces

We break down the different types of gas fireplaces, questions to consider, key features, and costs.


How to Install a Wall-Mounted Mini Split

Plumbing and heating expert, Richard Trethewey explains the purpose of a mini split ductless air conditioner and the process of getting one installed.

How Often You Should Change Your Air Filter

Changing the air filters in your HVAC system is an essential practice that ensures clean air circulates throughout your home. In this article, we discuss the importance of changing an air filter and give you tips on how to do it.


Baseboard Heater Making Noise? Here’s How to Fix It

Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner diagnose and solve a baseboard hot water system that makes noise.


How to Quiet a Banging Steam Radiator

This Old House plumbing and heating contractor Richard Trethewey silences a rattling radiator

Should Crawl-Space Vents be Open or Closed?

Should we block our crawl-space vents or keep them open? This Old House’s Tom Silva answers.

Radiant Floor Heating: Why It’s Worth It

Heated floors are energy efficient and provide the ultimate in comfort. We offer a basic introduction on the advantages of this heating system.

Propane vs Oil Heat: Which Is Best For Home Heating?

If you have a choice between fuels, the answer frequently comes down to money. Which is the cheapest fuel to heat with?

How to Bleed a Radiator

If you have hot-water heat, have you ever found that one or more of your radiators isn’t warming up? Or that only the bottom of a radiator gets hot? Before you spend the money on a plumber, try an easy fix.

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.