https://www.openlearning.com/u..../schaefercoates-sll8
https://marcheel5.bravejournal.....net/20-up-and-comin
How to Choose the Best Gas Patio Heater Unlike electric patio heaters, which require electricity and are expensive to operate gas models run on propane. On hot days, they can also explode or burn through the tank fast. Find heaters with a pyramidal design that connect to standard propane tanks and that produce an impressive 40,000 Bt