18,000 BTU Infrared Vent Free Natural Gas Wall Heater Magellan modern space—add it to your '309684660 modern space—add it to your cart today wide and fits most mid size truck beds with dual lid DEPENDABLE Ideal for emergency or daily supplemental use ECONOMICAL Cut heating bills by warming only occupied areas COMFORT Manually adjust the heat setting to your desired temperature SAFE Built in oxygen depletion sensor (ODS) immediately shuts down the heater if carbon monoxide or lack of oxygen is detected CONVENIENT 1 continuous press of the battery assisted igniter makes ignition quick and effortless VERSATILE Includes all necessary hardware and bracket for wall mounting UPGRADEABLE Separately sold optional base legs (WBL100) provide the alternative of floor mounting they make an excellent choice for everyday heating and emergency situations when the power goes out