Mr. Heater 80,000 BTU Big Maxx Propane Unit Heater

The Mr. Heater 80,000 BTU Big Maxx Propane Unit Heater is a robust and versatile heating option designed for large spaces. It offers instant warmth with a high power output of up to 80,000 BTU, making it ideal for keeping garages, workshops, or outdoor areas cozy. This heater ships as a natural gas unit but includes a convenient conversion kit to switch to propane, ensuring flexibility in fuel choice. It’s equipped with a 4" flue size, allowing easy installation in both vertical and horizontal vent systems. With built-in safety features and reliable performance, it’s the perfect companion for all your heating needs, especially in harsh winter climates.

Key Features
  • High power output of up to 80,000 BTU for instant warmth
  • Dual fuel compatibility - ships as natural gas with LP conversion kit
  • Efficient 4" flue size for both vertical and horizontal venting options
  • Ideal for heating large spaces up to 1,000 sq. ft.
  • Built-in safety features for reliable and secure operation
Perfect For

Whether you need to keep a workshop, garage, or outdoor space warm, this powerful heater is up to the task. Its ability to heat up to 1,000 square feet makes it an excellent choice for those requiring consistent heat in big areas. The dual fuel adaptability and simple venting options allow you to use it wherever and whenever needed, ensuring convenience and efficiency for every heating situation.

What Makes It Stand Out

The Mr. Heater 80,000 BTU Big Maxx Propane Unit Heater combines powerful heating with user-friendly design. With a reliable conversion kit, it can be easily adapted to run on propane or natural gas, making it suitable for different environments. Its 4" flue size supports versatile installation options, while built-in safety mechanisms provide peace of mind. This heater is durable, efficient, and perfect for those who need consistent warmth across large, hard-to-heal areas.


Additional information