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Mr. Heater MH18B - Big Buddy Portable Indoor Propane Heater

Item UPC: 08930174800
Shipping Weight: 18 lbs.


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The latest evolution in powerful and portable heat is here! BIG Buddy from Enerco/Mr. Heater now takes portable heat to another level --- 18,000 BTU/HR with the capacity to heat up to 400 square feet of space for up to 220 hours (on low position).

BIG Buddy's Dual-Heating System (DHS) combines radiant heat comfort with convection heat airflow for maximum heating efficiency.

Multi-position heat settings of 4,000, 9,000 and 18,000 BTU/HR control comfort level. Built-in oxygen shutoff sensor and tip-over switch ensures indoor safe operation (adequate ventilation must be provided; see operating instructions).

Certified by CSA International (American Gas Association), Mr. Heater's Big Buddy Indoor Safe Portable Heater features a low oxygen safety shutoff pilot to provide safe, reliable propane heat indoors.

Advantages of Using a Mr. Heater Portable Buddy Propane Heater:

  • Designed and Approved for Indoor Use
  • Clean Burning and Odor Free - A Great Alernative to Kerosene!
  • "Low-Oxygen" Safety Shut-Off System
  • Accidental Tip-Over Safety Shutoff
  • Single Control for Starting and Heat Adjustment
  • 4,000, 9,000, and 18,000 BTU/hr Settings
  • Heats up to 400 Square Feet of Space for up to 220 Hours
  • Convenient "Spark to Lite" Piezo Ignition


  • Ergonomic Easy-Carry Handle
  • Low Oxygen Shutoff Pilot Safety System For Indoor & Outdoor Use
  • Blower Fan Power On/Off Switch
  • Uses optional A/C Adapter Or 4 D-Cell Batteries To Power Blower Fan
  • Large 4-Position Heat Level Control Knob With Built-In Piezo Starter
  • Integrated Hot Air Blower Venting System
  • Attached Swing-Open Doors with Swivel-Out Mount For Easy Cylinder Installation
  • Porcelain Coated Reflector For Extended Life
  • Dual Ceramic Burner Tiles With Shock Absorbing Floating Insulation
  • High-Temperature Coated Safety Wire Guard
  • Non-Skid Surface Pads For Extra Stability
  • Key Shaped Rear Mounting Holes For Wall Mounting
  • Built-In Tip Over Shutoff Switch
  • CSA Certified For Indoor & Outdoor Use

**Propane tank not included**
**Do not sleep while unit is operating! Not designed for permanent installation or for use above 7,000 feet. When using a 20 lb. propane tank, place cylinder outdoors. Never bring a 20 lb. cylinder indoors.**

Model# F274800

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