Amazon.com has a Mr. Heater MH9B 9,000 BTU Portable Buddy Propane Heater for $37.98 with Free shipping.
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- Runs for up to six hours on one disposable propane cylinder n
- 4,000 or 9,000 BTU radiant propane heater n
- Low-oxygen shutoff system operates automatically n
- Designed for indoor/outdoor use n
- Uses the standard 1-pound disposable propane cylinder