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Mr. Heater Big Maxx Garage/Shop Unit Heaters

4.18 out of 5 stars 11 Customer Reviews

Mr. Heater Big Maxx garage heaters will give you some much-needed heat in your garage or shop. Highly efficient and cost effective, these unit heaters are available for both propane and natural gas fuel sources with easy installation and quiet operation for your workshop or warehouse. Mr. Heater Big Maxx heaters are CSA certified and can be mounted up out of the way leaving you valuable floor space. Work in warmth all winter long; install a Mr. Heater Big Maxx heater.

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Results 1 - 6 of 6

Heater, Fixed Mount, 50,000 BTU, 1,200 sq. ft., Natural Gas, Each

Part Number: MRH-F260550

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

Heater, Fixed Mount, 200,000 BTU, 6,700 sq. ft., Natural Gas, Each

Part Number: MRH-F263063

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Heater, Fixed Mount, 250,000 BTU, 8,400 sq. ft., Natural Gas, Each

Part Number: MRH-F263064

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Heater, Fixed Mount, 300,000 BTU, 10,000 sq. ft., Natural Gas, Each

Part Number: MRH-F263065

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Heater, Fixed Mount, 400,000 BTU, 13,400 sq. ft., Natural Gas, Each

Part Number: MRH-F263066

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Heater, Big Maxx Garage/Shop Unit, Fixed Mount, Natural Gas, 125,000 BTU/hr., Each

Part Number: MRH-F260590

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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