Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater

Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater

$222.95
$222.95 $222.47
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Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
  • Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater
Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater

Mr. Heater Big Buddy Portable Propane Heater – 4,000–18,000 BTU Indoor-Safe Heater

$222.95
$222.95 $222.47

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Shipping & Delivery Estimates Calculated at Checkout

Product Overview

The Mr. Heater Big Buddy is the most popular portable propane heater in North America, trusted for safe, reliable warmth in cabins, garages, workshops, and large camping tents. This patented radiant heater delivers adjustable heat output and is designed for indoor-safe use with multiple built-in safety features.

Powerful, Adjustable Heat

With three heat settings—4,000, 9,000, or 18,000 BTU per hour, the Big Buddy can comfortably heat spaces up to 450 sq. ft. A single control knob makes startup fast and easy using the built-in Piezo ignition system.

Flexible Fuel Options

The heater connects directly to two 1 lb. propane cylinders for portable use. Thanks to dual swivel regulators, it can also be adapted to a 20 lb. propane tank with the purchase of an optional hose and filter—perfect for extended heating needs.

Indoor-Safe Safety Features

Designed with safety as a top priority, the Big Buddy includes:

  • Oxygen Depletion Sensor (ODS): Automatically shuts off if oxygen levels drop

  • Tip-Over Safety Shut-Off: Turns the unit off if accidentally knocked over

These features provide peace of mind for long-term indoor use.

Key Features

  • Heat Output: 4,000 / 9,000 / 18,000 BTU

  • Heats Up To: 450 sq. ft.

  • Fuel Type: Propane

  • Indoor Safe: Yes

  • Single Control Start Knob

  • Hi / Med / Low Heat Settings

  • Built-In Piezo Ignition

  • Dual Swivel Regulators

  • Fold-Down Carry Handle

Fuel Compatibility

  • Uses two 1 lb. propane cylinders

  • Can connect to a 20 lb. propane tank with optional hose & filter


Important Safety Notice

⚠️ Use of unauthorized accessories or attachments is strictly prohibited, may cause serious injury, and will void the manufacturer’s warranty.
🚚 Shipping & Delivery

We partner with trusted suppliers across the United States to bring you a wide selection of quality outdoor gear.

Shipping Information

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  • Many products qualify for free shipping, while others have shipping costs calculated at checkout.
  • Orders containing products from multiple suppliers may ship separately and arrive on different dates.
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For complete details, please review our Shipping Policy.
📦 Order Fulfillment

Orders are fulfilled directly by our trusted supplier network throughout the United States. This allows us to offer a broad selection of products while helping ensure fast processing and competitive pricing.

Orders containing products from multiple suppliers may be shipped separately and arrive on different dates. You'll receive tracking information for each shipment as it becomes available.
⚠️ Product Disclosures

🚚 Shipping Information

Shipping charges are calculated at checkout based on the product, destination, and supplier.

⚠️ California Proposition 65 Warning

This product may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Visit www.P65Warnings.ca.gov for more information.

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