Design temperature for heating | 
                           
| QName | Type | Fixed | Default | Use | Inheritable | Annotation | |
|---|---|---|---|---|---|---|---|
| programId | xsd:IDREF | optional | 
                                    
  | 
                              ||||
| unit | temperatureUnitEnum | optional | 
| Element | Zone | 
<xsd:element name="DesignHeatT"> <xsd:annotation> <xsd:documentation>  |