Propane company AmeriGas recommends the tanks "should never be stored in or subject to temperatures above 120°F."
One expert says if the tanks are constructed properly, they should not cause harm. He also says to keep your propane tanks away from other ignition sources.
9 Propane Tank Safety Tips Homeowners Should Know
Propane Safety: A Complete Guide
COSTWAY 15,000 BTU Propane Tank Top Heater, Portable Tank Top Heater with Safety Shut-off Valve and Tip-over Switch, CSA Certification, Outdoor Propane Gas Heater for Camping, Fishing, Patio, Garage : Patio
Blue Rhino Propane Exchange
How To Tell If Your Propane Tank Is Empty Without A Gauge, 42% OFF
Propane Tank Systems Phoenix AZ
How To Tell If Your Propane Tank Is Empty Without A Gauge, 42% OFF
Stay OSHA Compliant Know the Safety Regulations of Propane
Propane tank safety tips Arizona homeowners should know
Propane Tank Distance Rules and Requirements