3 Days - Online Only - Free Deals!

Mr. Heater Big Maxx LP to NG Fuel Conversion Kit

Item # 447248

Free Gear Bag with $150 Purchase

Recieve a Gander Mountain Gear Bag for Free when you spend $150 on select Camping Gear! ONLINE ONLY! Expires 10/26/16

Please make sure all selections are complete and a valid quantity is entered and try again.

Low Stock

Additional Information:

Prices, promotions, styles and availability may vary by store and online.



  • For use with Big Maxx/HeatStart 50K or 80K BTU

  • Converts from liquid propane to natural gas

Product Summary

This conversion kit for MHU80 and HSU80 model heaters converts Liquid Propane unit to Natural Gas. Kit includes all stickers and components needed for complete conversion. Conversion should only be performed by a licensed professional. Please double check your needs before placing an order for these parts. Converts MHU75LP from liquid propane to natural gas.

• For use with natural gas
• For use with MHU50, HSU50, MHU80, HSU80 Unit Heaters