Of the available heating technologies for outdoor use, only electric quartz halogen infrared is suitable for use under awnings and parasols. Firstly this is because there is no exposed heat source, as there would be with, say, a gas patio heater. Secondly virtually all of the heat emitted from a SunSwitch quartz halogen patio heater is radiated from the front of the unit so there will be no detrimental effect on the canopy material. SunSwitch does not recommend any products for use under awnings and parasols that are not completely weather safe. Although an awning or parasol provides overhead protection from rain, it is advisable to avoid products with a low 'IP' rating.