<xs:element name="HeatingFuels" minOccurs="0" maxOccurs="1">
    <xs:annotation>
        <xs:documentation>
						Collection of the types of fuel used to heat the property.
					</xs:documentation>
        <xs:appinfo>
            <retsid>101855</retsid>
        </xs:appinfo>
    </xs:annotation>
    <xs:complexType>
        <xs:sequence>
            <xs:element name="HeatingFuel" type="commons:FuelEnum" minOccurs="1" maxOccurs="unbounded">
                <xs:annotation>
                    <xs:documentation>
									All the types of heating in use. Possible 
									values are:
									Butane Gas
									Coal
									Electric
									Geothermal
									Kerosene 
									Natural Gas
									Oil
									Passive Heat Pump
									Passive Solar
									Pellet
									Propane Gas
									Solar
									Solar Panel
									Wood
									Unknown
									Other
									None
									?steam?
									?partial?									
								</xs:documentation>
                    <xs:appinfo>
                        <retsid>101856</retsid>
                    </xs:appinfo>
                </xs:annotation>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
</xs:element>