How to Make an Efficiency Window using a Cottonwood

If you are looking for a way to make an efficiency window out of a cottonwood, one of the most common trees in North America (and especially the west), then you will want to read the rest of this article

An efficiency window is simply a window that allows light and fresh air into your home while blocking out most of the heat from entering through it. It is also called a passive solar window because it uses the sun’s energy to heat the glass and warm your house

How do you make an efficiency window? Well, first you need to find a cottonwood tree that can grow in your area. The tree should be at least 10 feet tall with branches that reach out at least 30 feet high (so it will be easy to hang). You can also use other trees like oaks or maples if they are available in your area

Once you have found your cottonwood, cut off all branches except one that reaches out over 15 feet high. Then use the saw to cut off any branches that are too close together or too short (this will prevent them from interfering with each other). Once you have cut all of these branches away, take them outside and stack them up next to each other into

picture window cottonwood

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