Heating & Cooling Videos

Ask This Old House plumbing and heating expert Richard Trethewey helps a homeowner figure out why one of her radiators is not working.

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

Over the years, This Old House plumbing and heating expert Richard Trethewey has helped hundreds of homeowners reduce their energy consumption and slash their monthly utility bills

Learn from plumbing and heating expert Richard Trethewey how using thermostat setbacks can help you save money.

Ask This Old House plumbing and heating expert Richard Trethewey shows an innovative new way to seal ducts from the inside

Scott Caron, master electrician for Ask This Old House, helps a homeowner put in an exhaust fan to rid her kitchen of smelly cooking odors.

Too much humidity in your home can cause discomfort. Learn how to install a whole-house dehumidifier in our comprehensive guide.

Use a specialized foam panel to lock the PEX tubing in place, cover it with a sand-and-cement mix, and tile away.

Control temperatures in different rooms according to comfort level by following our guide and instructional video to zoning your HVAC system.

Ask This Old House plumbing and heating expert Richard Trethewey shows how a professional would install a whole-house humidifier.

This Old House plumbing and heating expert Richard Trethewey shows how to prevent ice buildup from shutting down an air-conditioning system.

In this guide, This Old House heating expert Richard Trethewey shows how to install and operate an energy-saving smart thermostat.

Watch as This Old House plumbing and heating expert Richard Trethewey helps a homeowner insulate his exposed HVAC ductwork.

This Old House's Richard Trethewey and Kevin O'Connor install a ductless heat pump to heat and cool a 700-square-foot room.

Ask This Old House plumbing and heating expert Richard Trethewey helps locate the leak on a steam boiler that's losing water.

A whole-house fan is an AC alternative that can cool your home. Our guide and video explain how to install one in your house.

Are you looking for an affordable way to heat your swimming pool year-round? Here's how you can use your HVAC system to do so.

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

This Old House plumbing and heating expert Richard Trethewey helps a homeowner install a wireless thermostat to control one zone of heating.

Richard Trethewey and an expert installer show you how to install a fireplace insert that increases heat output and decreases cost.

This Old House plumbing and heating expert Richard Trethewey shows how to install a new water heater without a chimney.

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

This Old House plumbing and heating expert Richard Trethewey shows how to control the temperature in every room of the house.

This Old House general contractor Tom Silva shows how to upgrade an entryway with a brand-new, low-maintenance, energy-efficient door.

Keep your family warm this winter. Tom Silva shows you how to stop cold air from coming through windows and doors.

There are a lot of furnace air filter options out there, so we've created a guide and video to help you find the right one for your home.

Save energy and stay cozy by linking your system to the outside temperatures

This Old House general contractor Tom Silva shares his fast fixes for a drafty door

This Old House plumbing and heating expert Richard Trethewey explains how home automation delivers comfort, convenience, and energy savings.

Drafty doors are no match for new weatherstripping. Learn how to remove and replace old weatherstripping with This Old House's Tom Silva.

Silencing a rattling metal heating unit with This Old House plumbing and heating expert Richard Trethewey

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