This winter has been one of the coldest on record. Due to the cold snap, many homeowners have looked for new ways to improve heating efficiency. One great way method that is often overlooked is to keep dryer heat inside. Most homes expel the heat produced from drying clothes, which is a must for gas dryers. They produce dangerous carbon monoxide that must be vented. However, for electric dryers you can take advantage of this excess heat.
I spent about $45 on a new flexible duct, a Space Saver duct, hose clamps, and the heat keeper. The Space Saver duct is flatter and more rigid, which makes it easier to support the heat keeper and also allows the dryer to be pushed a closer to the wall.
After installing this piece, I pushed the dryer back into place and added on the heat keeper on top with a hose clamp. Make sure to install it with the arrows properly aligned so air will flow properly. The last step is to attache the flexible duct in between the heat keeper and the outside vent with hose clamps.