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Mr. Heater Manuals & User Guides

Mr. Heater is a leading manufacturer of portable propane, electric, and kerosene heaters, including the popular Buddy series, delivering safe and reliable heat since 1957.

Tip: include the full model number printed on your Mr. Heater label for the best match.

About Mr. Heater manuals on Manuals.plus

Since 1957, Mr. Heater has been a trusted provider of safe, reliable heating solutions for both indoor and outdoor use. Known for their innovative and highly portable designs, Mr. Heater products cater to a wide range of needs, from heating hunting blinds and ice fishing shelters to warming up workshops, garages, and enclosed porches.

The company is perhaps best known for its popular Buddy series of portable propane heaters, including the Little Buddy, Portable Buddy, and Big Buddy. These heaters feature advanced safety mechanisms such as the Oxygen Depletion System (ODS) and accidental tip-over switches, ensuring peace of mind during operation.

Whether you need a heavy-duty forced air heater for a construction site or a compact radiant heater for your next camping trip, Mr. Heater provides comprehensive manuals and support to help you safely operate and maintain your equipment.

Mr. Heater manuals

Latest manuals from manuals+ curated for this brand.

MR HEATER MH70KTFR Kerosene Radiant Heater Instruction Manual

December 24, 2025
OPERATING ­INSTRUCTIONS­ AND ­OWNER’S­ MANUAL Model­# MH70KTFR MH125KTFR Oil Fired Radiant Heater NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!NEVER LEAVE THE HEATER UNATTENDED WHILE BURNING!NEVER LEAVE THE HEATER UNATTENDED WHILE…

MR HEATER MH11BFLEX Buddy Flex Heater Owner’s Manual

January 30, 2025
MR HEATER MH11BFLEX Buddy Flex Heater Product Specifications: Model: MH11BFLEX Type: Portable Propane Heater Intended Use: Recreational and Emergency Indoor Use Manufacturer: Mr. Heater Country of Sale: US (Except Massachusetts)…

Mr. Heater manuals from online retailers

Mr. Heater support FAQ

Common questions about manuals, registration, and support for this brand.

  • How do I light my Mr. Heater Buddy heater?

    Connect the heater to a propane tank. Press and hold the start button to ignite the pilot light. Continue holding for 30 seconds to allow the thermocouple to heat up, then release. Once the pilot stays lit, adjust to your desired heat setting.

  • What is the Oxygen Depletion System (ODS) on Mr. Heater products?

    The ODS is a safety feature that senses the oxygen level around the heater. If the oxygen percentage falls below a factory preset level, it automatically shuts down the heater to prevent unsafe conditions.

  • Why does my Mr. Heater shut off automatically?

    Your heater may shut off automatically due to the tip-over switch being activated if tilted past 45 degrees, or the Oxygen Depletion System (ODS) detecting low oxygen levels in the room.

  • Where can I find the manual for my Mr. Heater?

    Instruction manuals for Mr. Heater models like the Big Buddy, Portable Buddy, and forced air heaters can be downloaded directly from our manual library or the official Mr. Heater website.

  • How do I register my Mr. Heater product for warranty?

    You can register your Mr. Heater product by visiting the Warranty Registration page on the official Mr. Heater (Enerco) website.