Built-in thermal protection probe. Ergonomic easy-carry handle. Low oxygen shutoff pilot safety system for indoor & outdoor use. Blower fan power on/off switch. Large four-position heat level control knob with built-in piezo starter. Integrated hot air blower venting system. Attached swing-open doors with swivel-out mount for easy cylinder installation. Porcelain coated reflector for extended life. Dual ceramic burner tiles with shock absorbing floating insulation. High-temperature coated safety wire guard. Non-skid surface pads for extra stability. Key shaped rear mounting holes for wall mounting. Built-in tip over shutoff switch. CSA certified for indoor & outdoor use.