Mhu125-125,000 btu, big maxx natural gas unit heater, heats up to 2000 sqft, spark ignition features self-diagnostic control module, includes 2 angle brackets for ceiling mount, ships as natural gas, includes ng to lp conversion kit, 4" flue size, category 1 vertical: category 3 horizontal venting, 1/2' gas connection, built-in electric high velocity fan to pull cool air into the rear of the heater & over a heat exchanger, forcing hot air into the surrounding area, require 115v ac power & can operate using propane lp or ng, proper venting is required & is sold separately.

• Spark ignition features self-diagnostic control module
• Heats up to 2000 Square Feet
• Ships as natural gas, includes NG to LP conversion kit
• Uses a built-in electric high-velocity fan to pull cool air into the rear of the heater and over a heat exchanger, forcing hot air into the surrounding area