The Sunglo Permanent Mount Natural Gas Heater in Stainless Steel is a sleek, streamlined option for those looking for a permanent, built-in, natural gas patio heating solution. The in-ground post design minimizes the deck space needed for installation and creates a simple, clean appearance. Being directly plumbed to your natural gas source, the amount of time you are able to enjoy the heater is literally limitless. The heater features a manually operated ignition system that requires 24V to operate the solenoid gas valve. This allows the unit to be controlled using an on/off switch for convenient operation. The durable, heavy duty corrosion resistant stainless steel construction of the heater makes it resistant to the harsh elements of the weather, for guaranteed years of use and enjoyment. The heater produces up to 50,000 BTUs of warmth in an almost 12' diameter. For added peace of mind, the heater also features a 100% safety shutoff control. If you are considering multiple units in a single area, it is recommended that each heater be at least 12 Ft apart. *Control device is to be supplied by the installer. Manual control knob must be set to the ON position for this heater to operate with an electrical switch.