<p>The object of analysis in the present document is a residential house in Sätra. This building has a hydronic space heating system with radiators spread around the house and a heating recovery system ventilation which also use water for reheating. Water for space heating, ventilation and hot tap water is nowadays heated in an electric boiler.The aim of this project is to make a diagnosis of the current situation, evaluate different alternatives for supplying hot water to the house, and to study costs and possible savings by comparing the actual facilities with the proposals done.</p>

The object of analysis in the present document is a residential house in Sätra. This building has a hydronic space heating system with radiators spread around the house and a heating recovery system ventilation which also use water for reheating. Water for space heating, ventilation and hot tap water is nowadays heated in an electric boiler.The aim of this project is to make a diagnosis of the current situation, evaluate different alternatives for supplying hot water to the house, and to study costs and possible savings by comparing the actual facilities with the proposals done.