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Mr. Heater Manuals & User Guides

Mr. Heater is a leading manufacturer of portable propane heaters, forced air units, and heating accessories, delivering safe and reliable warmth 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

Mr. Heater has been a trusted name in portable heating solutions since 1957, providing innovative technology for safe and reliable warmth. Best known for their popular "Buddy" series of portable propane heaters, the brand offers a wide range of products including tank-top heaters, forced-air kerosene heaters, and radiant heating units designed for both indoor and outdoor applications.

Safety is a core priority for Mr. Heater. Many of their products feature patented systems such as the Low Oxygen Depletion Sensor (ODS) and tip-over safety switches, ensuring peace of mind during operation. Whether for camping, hunting, construction sites, or emergency heat, Mr. Heater delivers durable and efficient heating solutions tailored to various environments and user needs.

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 Propane Accessories Installation Guide

Installation Guide
Comprehensive installation guide for Mr. Heater propane hoses, fittings, regulators, and accessories, covering safe usage, product details, and application guides for various outdoor and camping appliances. Includes a glossary and…

Mr. Heater manuals from online retailers

Mr. Heater support FAQ

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

  • How do I light the pilot on my Mr. Heater portable unit?

    Rotate the control knob to the 'Pilot' position and depress it. Hold the button down for 30–60 seconds. This heats the thermocouple and allows the pilot flame to stay lit required for operation.

  • Why does my heater shut off automatically?

    Mr. Heater units are equipped with safety features like the Oxygen Depletion Sensor (ODS) and a tip-over switch. The heater will shut off if it detects low oxygen levels or if the unit is tilted beyond a safe angle.

  • Can I use Mr. Heater products indoors?

    Many portable units, such as the 'Buddy' series, are classified as indoor-safe for recreational enclosures due to their ODS technology. However, adequate ventilation (e.g., a window or roof vent) is required. Always check your specific manual for usage restrictions.

  • What should I do if I smell gas while using the heater?

    Do not attempt to light the appliance. Extinguish any open flame, shut off the gas supply immediately, and evacuate the area. Contact your gas supplier or fire department from a safe distance.

  • Does the heater work at high altitudes?

    At altitudes above 7,000 feet, the reduced oxygen levels may inadvertently trigger the Oxygen Depletion Sensor (ODS), causing the unit to shut off. This is a safety feature and not a malfunction.