override def heatingSystemType : HeatingSystemEnum = target.heatingSystemType match {

        case OldOil63 => StdOil80
        case OldGas72 => StdGas80
        case StdGas80 => StdGas80
        case CondensingGas => StdGas80
        case ElectricResistance => NewerHeatPump
    }
    override def wallInsulation : WallInsulationEnum = WallGoodIns
    override def atticInsulation : AtticInsulationEnum = AtticStd10InchIns
    override def windows : WindowsEnum = WindowDblAndLowE
    override def airTightness : AirTightnessEnum = AirTightnessFairlyTight
    override def foundationInsulation : FoundationInsulationEnum = FoundationInsulationWalls
    override def ductInsulation : DuctInsulationEnum = DuctInsulationStdR4
    override def acSEER : if target.acseer > 0, Int = 13
							else 0
    override def windowShading : WindowShadingEnum = WindowShadingLow
    override def waterHeaterType : WaterHeaterTypeEnum = WaterHeaterTypeStdGas