How many feet will you have to walk around a rectangle that has a base of 14 feet and a height of 11 feet? Rectangle: The formula for calculating the perimeter of a rectangle is P = 2(l+w) where l is length and w is its width. Two of...
The Capstone turbine you linked - the system is the size of a large refrigerator and the output is 65 kW, more than 10x the peak need of most houses. Also, efficiency isn't really helped by being in a house. A good gas furnace already gets 96% efficiency for heating and a home ...