A little upkeep can make your propane gas water heater live longer and work more efficiently. If the tank rumbles or creaks, collected sediment is the likely cause. Every six months, you should flush the tank by attaching a hose to the drain and letting the water run out for three to five minutes.

Propane gas space heaters are either direct-vented or vent-free. Direct-vent heaters require outside air to support combustion. They are typically installed on outside walls.