An energy simulation program, ESP-r, was used for simulation of the energy requirements and indoor climate in a well-insulated terraced house in Sweden. A parameter study was performed to investigate the influence of different control schemes on energy requirement. The influence on both energy requirement and indoor climate were analysed for two different measures. Changed placement of the air temperature sensor in the heating system decreases the energy demand without deteriorating of the indoor climate. A cooling system improves the indoor climate but increase the total energy requirement.