Homemade Radiator Efficiency Booster
After coming in from the cold outdoors, a warm indoors is something you want. However, a standard radiator is sometimes just not enough. You can upgrade it or get another one, but that would mean higher gas and electricity bills. But the solution is some flaps of aluminum foil over cardboard. Place it around the heat source and they will reflect heat to all the corners of the rooms, increasing the rate of heat dispensing. Hence the efficiency of the radiator.
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Random radiator fact: The Romans had the first underground heating in the world, known as the hypocaust. They were the first documented use of central heating, and it goes back to around 100BC. Only the wealthiest of Romans could afford this type of heating.