This manual has been created with the practical objective of obtaining an approximation to the phenomenon of energy consumption in buildings, not an exact result, investing as m little time as possible in the calculation and serving as a preliminary step a l the use of complex calculation programs that distract the ment from the really important: understand what we are calculating and why. The contents of this manual are explained in a practical and simple way and are accompanied by numerous examples and a practical case in which the monthly energy balance of a single-family home is resol . 226 p.: Illustration, Color, 26x20 cm, paperback