<p>Enjoy up to 18,000-BTU output at a lower price with this Mr. Heater® Factory-Reconditioned Big Buddy® Heater. Packed with safety features, this factory-reconditioned and -tested Big Buddy can be trusted to heat up to 450 sq. ft. of space for up to 11 hours. The built-in tip-over safety shut-off switch and low-oxygen shut-off pilot safety system provide peace of mind, while the Piezo igniter makes turning it on a breeze. Big Buddy Propane Heaters have 3 output settings: Low, 4,000 BTU; Medium, 9,000 BTU; High, 18,000 BTU. This propane heater has 2 swiveling regulators for direct connection to 1-lb. propane cylinders (not included) or a bulk 20-lb. tank with a hose (not included). Heavy-duty wire guard adds an extra layer of safety. Mfrs. 90-day limited warranty.<br>Manufacturer model #: MH18B.</p> <ul> <li>Powerful 18,000-BTU portable heater</li> <li>Heats up to 450 sq. ft.</li> <li>Runs up to 11 hours on low setting</li> <li>3 heat settings</li> <li>Built-in tip-over safety shut-off switch</li> <li>Low-oxygen shutoff pilot safety system</li> <li>Piezo igniter for easy lighting</li> <li>Factory-reconditioned and tested</li> <li>Heavy-duty wire guard</li> </ul>