Home Improvements

Описание к видео Home Improvements

Why the energy use of the US has not risen over the last 20 years even though our gross domestic product has risen significantly. How insulation in a house works, especially in windows such as “thermopanes”. R values of insulation explained and what the typical values are for windows, walls, and roofs. Electrochromic glass discussed. Energy efficient building designations. Efficiency gains of lighting and of motors. Improvements of fuel economy over time in the US for cars and trucks. Number of trucks, cars, vans, and SUVs in the US over time.

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