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Mr. Heater Big Buddy Indoor/Outdoor Propane Heater — 18,000 BTU, Model# MH18B
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Mr. Heater Big Buddy Indoor/Outdoor Propane Heater — 18,000 BTU, Model# MH18B

Item# 173635
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Was $139.99
Sale $119.99

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Manufacturer's Warranty: 12 months parts / 12 months labor

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Product Summary


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The Mr. Heater Big Buddy™ provides temporary heat for barns, sheds, cabins, campers, patios, garages, sporting events, hunting blinds and more. Dual heating system combines radiant heat comfort with convection heat air flow for maximum heating efficiency. 4000, 9000 and 18,000 BTU with the capacity to heat up to 400 square feet for up to 108 hours on 20-lb. propane tank.

What's Included

  • (1) Heater
Versatile

Versatile

Portable Heat for Anywhere, Any Time

The Mr. Heater Big Buddy™ Heater is the rugged and ready travel companion for keeping you toasty warm at work, at play or in emergencies — great for decks, patios, cabins, RVs, sporting events, tailgating, sheds, barns and more. Wherever it is needed, the Big Buddy Heater's sturdy handle makes carrying easy.

Heat and Fuel Options

The Mr. Heater Big Buddy Heater features a dual-heating system, combining radiant heat comfort with convection heat air flow for maximum heating efficiency. Choose three heat settings (4000, 9000 or 18,000 BTU) for the perfect comfort level every time. The Big Buddy heater can be powered using one or two 1-lb. propane cylinders or a 20-lb. cylinder (none included). Heat up to 108 hours on a single 20-lb. propane tank with the optional hose connection (not included).

Durable

Designed to Last

You can count on the Mr. Heater Big Buddy Heater to deliver comfortable warmth season after season. Engineered with dual ceramic burner tiles with shock-absorbing floating insulation to provide extra durability. High-temperature heavy-duty safety wire guard prevents damage and mishaps. The handy fully enclosed fuel compartment protects and hides propane cylinders.

durable
Safe, Effective and Easy to Use

Safe, Effective and Easy to Use

Approved for Use Indoors or Outdoors

The Mr. Heater Big Buddy Heater is a safe and effective choice whether indoors or outdoors. Built-in safety features include an automatic low-oxygen shutoff system and a tip-over switch. The blower fan spreads warmth more quickly to enhance heating of up to 400 square feet.

No Matches or Electricity Required

When you need heat, there are no complicated, messy procedures involved. Simply use the push-button igniter. Adjust the heat control knob to the desired position and enjoy. Plus, fuel connections are easy, thanks to the swivel regulator.

Features + Benefits

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Features for Mr. Heater Big Buddy Indoor/Outdoor Propane Heater — 18,000 BTU, Model# MH18B
  • Up to 108 hours of use
  • CSA certified
  • Uses one or two 1-lb. or one 20-lb. propane tank (propane not included) with optional hose connections (Items 173645, 173646)
  • Blower fan uses A/C adapter (Item# 172641, sold separately) or 4 D-cell batteries (not included)
  • Minimum tank size: 1 lb.
  • Not for sale in MA

Key Specs

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Item#173635
Ship Weight19.0 lbs
Category TypeForced air
Needs Direct VentingNo
Heating Capability (sq. ft.)400
Heat Settings3
BTU Output18,000
Clearance from Corner (in.)6
Clearance from Rear Wall (in.)6
Clearance from Side Wall (in.)6
Thermostat IncludedNo
Blower IncludedYes
Blower Power Supply (Volts, Amps)110
Fuel Consumption (gal./hr.)3–12 hrs. on two 1-lb. tanks, 50–220 hrs. on two 20-lb. tanks
IgniterMatchless push-button starter
Oxygen Depletion SensorYes
Remote IncludedNo
Dimensions L x W x H (in.)18 3/4 x 11 x 16 7/8

Additional Information

Frequently Asked Questions

Customer Reviews

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Product Question + Answer

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Products You Will Need

Propane Tanks + Equipment

Worthington Cylinders Propane Tank with OPD Valve and Sight Gauge — 20 Lbs., Model# 308551 Worthington Cylinders Propane Tank with OPD Valve and Sight Gauge — 20 Lbs., Model# 308551
Item# 24855
Factory Shipped —
Estimated Delivery: 5 - 7 Business Days
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Products We Recommend

Power Control + Adapters

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Hose Assemblies + Regulators

Mr. Heater Hose Connection For Buddy Heaters — 12ft. Length Mr. Heater Hose Connection For Buddy Heaters — 12ft. Length
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Mr. Heater Hose Connection For Buddy Heaters — 5ft. Length, Model# F273701 Mr. Heater Hose Connection For Buddy Heaters — 5ft. Length, Model# F273701
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Mr. Heater Fuel Filter for Buddy™ Heaters, Model# F273699 Mr. Heater Fuel Filter for Buddy™ Heaters, Model# F273699
Item# 173639
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Mr. Heater 12-Ft. Hose with Regulator for Item# 173635 Mr. Heater 12-Ft. Hose with Regulator for Item# 173635
Item# 1736350
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Alkaline Batteries

Northern Tool + Equipment D-Cell Alkaline Batteries — 8-Pk. Northern Tool + Equipment D-Cell Alkaline Batteries — 8-Pk.
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Propane Portable Heaters

Mr. Heater Big Buddy Carry Bag, Model# 18BBB Mr. Heater Big Buddy Carry Bag, Model# 18BBB
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Safety Products

Mechanical + Shop Gloves

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Extended Warranty

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Service Protection Plus

Manufacturer Warranty:
12 months parts / 12 months labor

Protect your purchase beyond the manufacturer's warranty
with Service Protection Plus!

DESCRIPTION (Click More Info for details) 1 Year Extension 2 Year Extension
Replacement Plan
Only $14.99
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Only $24.99
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Replacement Plan with Accidental Damage
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Mr. Heater Big Buddy Indoor/Outdoor Propane Heater — 18,000 BTU, Model# MH18B The price is $119.99.
Mr. Heater Big Buddy Indoor/Outdoor Propane Heater — 18,000 BTU, Model# MH18B
(Not Yet Rated - New)
Item# 173635
In Stock Online
Was $139.99
Sale $119.99
Save $20.00
Hide Similarities
Category Type Accessory Accessory Radiant heat Radiant heat Forced air
Needs Direct Venting - - No No No
Regulator Included - - Yes - -
Heating Capability (sq. ft.) - - - 200 400
Heat Settings - - 3 2 3
BTU Output
- - 15,000 9,000 18,000
Clearance from Corner (in.) - - 30 6 6
Clearance from Rear Wall (in.) - - 30 6 6
Clearance from Side Wall (in.) - - 30 6 6
Thermostat Included - - No No No
Blower Included - - No No Yes
Blower Power Supply (Volts, Amps) - - - - 110
Fuel Consumption (gal./hr.) - - 23 to 48 hrs. on a 20lb. tank - 3–12 hrs. on two 1-lb. tanks, 50–220 hrs. on two 20-lb. tanks
Igniter - - Manual Pilot light Matchless push-button starter
Oxygen Depletion Sensor - - No Yes Yes
Remote Included - - No No No
Dimensions L x W x H (in.)
- - 7 1/2 x 9 x 11 7 x 13 x 15 18 3/4 x 11 x 16 7/8