Heating design day rain flag. 0=no rain, 1=rain | 
                           
| Element | Weather | 
<xsd:element name="DDRainHeat" type="xsd:integer"> <xsd:annotation> <xsd:documentation>Heating design day rain flag. 0=no rain, 1=rain</xsd:documentation> </xsd:annotation> </xsd:element>  |