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Ross Trethewey, Kevin O’Connor and Mauro Henrique sit at a table.
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Understanding the Dangers of Thirdhand Smoke

Ask This Old House home technology expert Ross Trethewey and painter Mauro Henrique discuss how to remove a cigarette smell from a home and why it is important to do so.

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How the Building Trades were Impacted During COVID-19

The This Old House team shares how the pandemic affected each of their trades. They talk about the changes in their industries and the challenges they all faced.

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What’s New with EV Chargers

Ask This Old House master electrician, Heath Eastman, and home technology expert, Ross Trethewey, discuss the progression of electric vehicle chargers and the role they imagine EV chargers will play in homes in the future.

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How to Control Smart Lighting

Ask This Old House home technology expert Ross Trethewey tests out some new smart lighting configurations.

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Understanding Electricity Bills

Ask This Old House home technology expert Ross Trethewey and plumbing and HVAC expert Richard Trethewey discuss changes to electric bill payment structures.

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Future House | Automated Landscaping Technology

Home technology expert, Ross Trethewey explores a variety of ways that landscaping could be done automatically via robots and smart home products.

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How to Make a DIY Air Filter

Ross Trethewey explains how air filtration systems work and how to build a localized DIY air filter.

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Understanding Indoor Air Quality

Ask This Old House home technology expert Ross Trethewey and plumbing and heating expert Richard Trethewey discuss indoor air quality, what it is, and how to measure it.

Installing solar panels on a roof
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5 Things You Need to Know About Solar | This Old House: Live

Ask This Old House home technology expert Ross Trethewey breaks down the five most important things to consider before installing solar panels on a house.

Home technology expert Ross Trethewey displays solar reflective roof shingles.
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Future House: Solar Reflective Roof Shingles

Ask This Old House home technology expert Ross Trethewey explores the design and testing of asphalt roof shingles that can reflect some of the sun’s heat away from the building.