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Mr. Heater Big Buddy Portable Heater vs Camplux Portable Propane Heater

Both heaters top out at 18,000 BTU and claim 450 sq ft, so the real choice is form factor. The Big Buddy is a 16.9 lb radiant box you can carry and run off two 1 lb cylinders, which suits cabins, tents and power outages. The Camplux is a wheeled unit built around a 20 lb tank with a tank shelf and cage, which suits a garage or patio where it stays put. Owners of both praise fast heat and simple single-knob lighting; the Big Buddy has the longer track record and far more ratings, while the Camplux draws complaints about propane burn on high and a fiddly rear grate.

  • Choose the Big Buddy if you need heat you can carry to a cabin, tent or job site and run from small disposable cylinders or an optional hose to a 20 lb tank.
  • Choose the Camplux if the heater will live in one spot like a garage, porch or patio and you want to roll it around on casters with a 20 lb tank riding on board.

Prices

  • Mr. Heater Big Buddy Portable Heater: $100.69 at GemPuff (last seen Nov 2)
  • Camplux Portable Propane Heater: $116.99 at Amazon (last seen Nov 2)
  • Difference: the Mr. Heater Big Buddy Portable Heater is $16.30 cheaper than the Camplux Portable Propane Heater at the latest prices (Nov 2)
Mr. Heater
Mr. Heater Big Buddy Portable Propane Heater

Mr. Heater Big Buddy Portable Heater

Mr. Heater Big Buddy Portable Propane Heater

4.4(316 ratings)
$100.69at GemPuffObserved Nov 2, 2026, 11:03 AM
See all prices and details
Visit GemPuff
Pros
  • Carryable at under 17 lbs, so it moves between rooms, tents and cabins
  • Lowest setting of the two at 4,000 BTU for small enclosed spaces
  • Fan option blends radiant and convection heat for faster warm-up
  • Long sales history and a large base of owner ratings
  • Swivel regulators let you switch from 1 lb cylinders to a bulk tank with one hose
Cons
  • No thermostat, timer or remote
  • 1 lb cylinders run out fast at high output
  • Bulk-tank hose and filter are sold separately
  • Plastic-and-metal body feels less rugged than a steel cabinet
Camplux
Camplux Portable Heater

Camplux Portable Propane Heater

Camplux Portable Heater

4.7(42 ratings)
$116.99at AmazonObserved Nov 2, 2026, 11:03 AM
See all prices and details
Visit Amazon

As an Amazon Associate, Deal.ai earns from qualifying purchases.

Pros
  • Casters and handles make a heavy 20 lb tank setup easy to reposition
  • Regulator and hose included, so it works with a bulk tank out of the box
  • Up to 69 hours on low on a 20 lb tank
  • Runs with no electricity, useful in a garage or shed
  • Tank shelf and cage keep the cylinder attached and stable
Cons
  • Burns propane quickly on the high setting
  • No fan, so heat is radiant only
  • Rear grate is awkward to seat in its three holes, per owners
  • Only 42 ratings, so the reliability picture is thinner
  • No thermostat or timer

What separates them

Mr. Heater Big Buddy Portable HeaterCamplux Portable Propane Heater
Form factor16.9 lb carryable box, 19 x 12 x 17.75 in, no wheelsFloor unit on 5 casters (1 with brake) plus integrated handles
Fuel setupRuns on two 1 lb cylinders; 20 lb tank needs an optional hose and filterShips with regulator and hose for a 20 lb tank; tank sits on a shelf in a cage
Heat settings4,000 / 9,000 / 18,000 BTU6,000 / 12,000 / 18,000 BTU
Low-output runtimeAbout 11 hours on dual 1 lb tanks at full outputUp to 69 hours on low with a 20 lb tank
Heat deliveryRadiant ceramic panels; an integrated fan blends in convection heatRadiant propane heat, no fan, no electricity needed
Safety systemsODS low-oxygen shutoff and tip-over shutoffODS low-oxygen shutoff and tip-over shutoff
ControlsSingle push-and-turn knob, piezo ignition, no thermostat or timerSingle control dial, piezo ignition, no thermostat or timer
Track recordLong-running bestseller with 316 ratings at 4.4Newer entrant with 42 ratings at 4.7

Price history

$149.99$100.69
Nov 1Nov 9
  • Mr. Heater Big Buddy Portable Heater: lowest $100.69 on Nov 2 at GemPuff; $149.99 on Nov 9.
  • Camplux Portable Propane Heater: lowest $116.99 on Nov 2 at Amazon.

Prices at every store

Mr. Heater Big Buddy Portable Heater

  • Blain's Farm & FleetNew

    In stock

    $139.99Observed Nov 7, 2026, 5:31 PM
    Visit Blain's Farm & Fleet
  • GemPuffNew

    Availability unknown

    $100.69Observed Nov 2, 2026, 11:03 AM
    Visit GemPuff
  • Reeds Family Outdoor OutfittersNew

    Availability unknown

    $129.99Observed Nov 1, 2026, 1:12 PM
    Visit Reeds Family Outdoor Outfitters
  • Family HardwareNew

    Availability unknown

    $138.31Observed Nov 2, 2026, 11:03 AM
    Visit Family Hardware

Also available at

  • WalmartCheck price at Walmart
  • Jamaica Hardware & PaintsCheck price at Jamaica Hardware & Paints
  • Life and HomeCheck price at Life and Home

Store links may earn us a commission. Some prices via Klarna.

All 14 stores and price history →

Camplux Portable Propane Heater

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $116.99Observed Nov 2, 2026, 11:03 AM
    Visit Amazon
  • CampluxNew

    Availability unknownReturn policy

    $169.99Verified
    Visit Camplux

Also available at

  • Xtrusion OverlandCheck price at Xtrusion Overland
  • NOMADICA OutfittersCheck price at NOMADICA Outfitters
  • Outdoor Wilderness Supply LLCCheck price at Outdoor Wilderness Supply LLC
All 2 stores and price history →

Specs compared

SpecMr. Heater Big Buddy Portable HeaterCamplux Portable Propane Heater
Heat Output18000-BTU—
Heat SourcePropane—
Heating Area450 ft²—
Heating MethodRadiant—
Power TypePropane—
Venting TypeVent-free—
Installation LocationIndoor/Outdoor—
Installation TypePortable—
Tip-Over SwitchYes—
Flame Failure SafetyYes—
Safety HighlightsTip-over switch—
ThermostatNo—
Show all 40 specsShow fewer specs
SpecMr. Heater Big Buddy Portable HeaterCamplux Portable Propane Heater
TimerNo—
Remote ControlNo—
Depth12 in.—
Dimensions12 in. x 19 in. x 17.75 in.—
Height17.75 in.—
Width19 in.—
Energy StarNo—
Efficiency99.9%—
Ventilation TypeVent-free—
Weight16.9 lbs.—

What reviewers say

Mr. Heater Big Buddy Portable Heater

  • 4.4 / 5316 ratings

Owners of the Big Buddy line generally treat it as a reliable, hard-working heater for cabins, garages and tents. The recurring complaints are fuel burn at the top setting and the moisture vent-free propane heat adds to a small room.

What people mention
  • Heat outputPraisedOwners say the high setting warms a cabin or garage fast, and the low setting is enough for a tent or small room.
  • Fuel useCriticisedReviewers report that 1 lb. cylinders are used up quickly at 18,000 BTU, so many switch to a 20 lb. tank with a hose.
  • MoistureCriticisedVent-free operation adds condensation in small, tight spaces, and some owners notice a propane odor.
  • Safety shut-offsPraisedThe tip-over switch and Oxygen Depletion Sensor are cited as reasons buyers trust it indoors.

Camplux Portable Propane Heater

  • 4.7 / 542 ratings

Owners praise this heater for its powerful heat output and ease of mobility. It is frequently used for warming garages and patios quickly, though some find it consumes fuel rapidly on high settings.

What people mention
  • Heat outputPraisedOwners say it warms a garage or patio quickly, especially on the higher settings.
  • SetupPraisedBuyers describe hooking up a tank and lighting the pilot as straightforward.
  • MobilityPraisedThe casters make it easy to move between rooms or around a campsite.
  • Safety shutoffPraised

Questions and answers

Which is better for a garage?
The Camplux. Its casters, tank shelf and included hose suit a heater that stays in one place, and 69 hours on low from a 20 lb tank means fewer tank swaps. The Big Buddy works too but needs the optional hose to run off a bulk tank.
Which is better for camping or a tent?
The Big Buddy. It weighs 16.9 lbs, has a carry handle and runs directly on 1 lb cylinders, so there is no tank to haul. Never use either heater in a tent without following the manufacturer's ventilation and clearance rules.
Which lasts longer on a tank?
The Camplux, by a wide margin. A 20 lb tank at 6,000 BTU gives up to 69 hours, while the Big Buddy's two 1 lb cylinders give roughly 11 hours at full output. Runtime depends on setting and tank size.
Is the Camplux worth stepping up to over the Big Buddy?
If the heater stays in one spot and you want bulk-tank convenience with casters, yes. If you need to carry it and run it off small cylinders, the Big Buddy is the better fit. Output and coverage are the same at the top end.
Do both have the same safety features?
Yes. Both have an oxygen depletion sensor that shuts the unit off in low oxygen and a tip-over shutoff. Neither has a thermostat, timer or remote, and both are vent-free, so follow the ventilation instructions.
Which heats a room faster?
The Big Buddy has an integrated fan that blends convection with radiant heat, which spreads warmth quicker. The Camplux is radiant only, so it warms people and objects in front of it before the air.

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Buying guides that pick them

  • Best portable propane space heaters
Materialplastic, ceramic, metal—
Heating Element MaterialCeramic—
Btu18000—
Maximum room size450 sq ft—
Fuel typePropane—
Number of heat settings3—
Rec locationIndoor—
Space heater typeRadiant Heaters—
Control typeManual—
FeaturesEasy to Clean—
With Automatic Shut-OffYes—
FinishRed/Black—
PortableYes—
Heating Capacity18,000 BTU—
TypeHeating Fan—
No. of Speeds3—
Power SourceGas—
ColorRed—
The tip-over and low-oxygen shutoffs are mentioned as reassuring.