https://chessdatabase.science/....wiki/20_Insightful_Q
Gas Fire Patio Heater A gas fire patio heater can warm a seating area and provide an inviting space to gather with friends. They can be powered either with propane, electricity or natural gas. Electric models are more portable, but emit no fumes or carbon monoxide. Propane tanks can be carried around, but require refilling in order to be refilled, whereas natural gas patio heating units connect directly to the gas line and eliminate the need for canisters. Safety Features Patio heaters offer a warm warmth