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https://articlescad.com/electr....ic-patio-outdoor-hea
Choosing an Electric Outdoor Heater For Patio Patio heaters utilize propane, gas or electricity to warm the air and provide warmth to outdoor spaces. While propane and natural gas models make use of fire to heat the air, electric models make use of an emitter that converts to infrared energy to heat people and furnishings. Most homeowners opt for propane patio heaters since they do not require installa