Work with Mr. Heater Big Buddy Heater MH18B and Tough Buddy Heater to power the fan. Mr. Heater F274800 (including Mr. Heater MH18B series and Mr. Heater Portable Big Buddy Propane Heater);. This 6 volt adapter is specially designed for Mr. Heater Big Buddy Heaters and powers the built-in fan to distribute heat evenly.
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