https://www.fireplacesandstove....s.uk/products/outdoo
Natural Gas Patio Heaters Natural gas patio heaters utilize the same infrared heating element that is used in propane patio heaters to heat the air around them. There are some significant distinctions between these models. British thermal units (BTUs) are used to measure the heat output. The more powerful the BTU rating is, the larger the area that a heater can comfortably heat. Cost-Effectiveness In comparison to propane and electric patio heaters natural gas models offer the most affordable