Photo 1 of Mr. Heater Corporation F299720 Vent-Free 20,000 BTU Blue Flame Propane Heater, Multi

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Photo 1 of Mr. Heater Corporation F299720 Vent-Free 20,000 BTU Blue Flame Propane Heater, Multi Photo 2 of Mr. Heater Corporation F299720 Vent-Free 20,000 BTU Blue Flame Propane Heater, Multi Photo 3 of Mr. Heater Corporation F299720 Vent-Free 20,000 BTU Blue Flame Propane Heater, Multi