Brand new item in box.
 
The Most Popular Portable Propane Heater in North America. This patented radiant 4, 000-18,000 BTU Liquid Propane heater connects directly to two 1 lb. cylinders and is the perfect solution for heating enclosed spaces like cabins up to 450 sq. ft. An integrated fan increases the heating capacity of this unit, blending radiant and convection style heat to give you the best of both worlds. Two swivel regulators give you the ability to adapt usage from disposable cylinders to a remote gas supply with the purchase of a single hose and filter. To light the unit, simply push and rotate the knob. The built in Piezo sparking mechanism will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off, you can be sure that you will enjoy years of comfortable indoor safe heat. *WE ARE NOT ABLE TO SELL THIS PRODUCT TO CANADA AND MASSACHUSETTS* **Please note when operating the heater at altitudes over 7, 000 FT above sea level the heater may shut off. **
 
From the manufacturer:
It features quick-connect assembly and an automatic low oxygen shutoff system. The Mr. Heater has swivel regulators and can be used in cabins, RV's, workshops, patios, porches and more.
 
4,000, 9,000, or 18,000 BTU per hour 
For use with propane gas 
Heats up to 450 sq. ft. 
 
Heat your camper, cabin, porch, picnic area, garage, barn, shed, hunting blind, and more by choosing from high, medium, and low heat settings for custom warmth Gives off 4,000, 9,000, or 18,000 BTU per hour with a heat range of 450 square feet; For use with propane gas integrating a 1-pound LP cylinder or 20-pound cylinder with hose (not included) Single control start knob for easy use with a piezo sparking mechanism for reliability and an Automatic Oxygen Depletion Sensor (ODS) safety shutoff in case of an accidental tip over for added safety Connects to 1-pound propane tanks with swivel regulators, allowing you to go from using disposable cylinders to a remote gas supply; Hose, filter, batteries, and propane are not included Comes with an easy-grip handle and heavy-duty safety wire guard for added tile protection and rugged durability while traveling and runs up to 3.6 hours on low and 1.8 hours on high
Single control start knob 
Hi-Med-Low heat settings 
Swivel regulators 
Automatic low oxygen shut-off system (ODS) 
Accidental tip-over safety shut-off 
Connects to two 1 lb. cylinders 
Connects to a 20 lb. cylinder with optional hose 
Fan operates on 4 - D batteries or AC adapter, both sold separately 
The distinctive Red Mr. Heater Buddy that has delivered comfort and safety for decades.