Can I use the Buddy Flex indoors?

Yes, in a ventilated space such as a garage, workshop or tent, following the manual's clearance and ventilation rules. It burns propane and gives off carbon monoxide, so never use it in a sealed room or a bedroom while sleeping.

What is the difference from the original Mr. Heater Buddy?

The Flex adds a 180-degree omni-directional burner, a quick-connect accessory port and an optimized wind barrier and pilot guard. Output is similar at 8,000 to 11,000 BTU.

How long does a 1 lb propane cylinder last?

Roughly a few hours at the highest setting and longer on low. For all-day heat, run it from a 20 lb tank with a hose and filter.

What accessories fit the quick-connect port?

Mr. Heater Flex accessories, including a battery fan to push warm air and a hose assembly for bulk tanks. They are sold separately.

Does it need electricity?

No. Ignition is manual and the burner runs on propane alone, so it works in a power outage. The optional fan needs batteries.

How much space will it heat?

Mr. Heater rates it for roughly 200 to 300 square feet depending on insulation and outdoor temperature. Radiant heat works best aimed at people, not empty rooms.

Where is the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater cheapest?

At Walmart, for $129.00, as of our latest check.

What do buyers say about the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater?

Rated 4.2 out of 5 from 437 ratings.

Where can I buy the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater?

7 stores we checked sell it, including Walmart, The Home Depot, Blain's Farm & Fleet, Dick's Sporting Goods, Tractor Supply Co.

Mr. Heater 8,000-11,000 BTU Buddy Flex Heater

Best price now

$129.00at WalmartChecked 18 h ago

Compared across 7 stores. Prices are checked against each store and labelled with when.

Visit Walmart

Mr. Heater 8,000-11,000 BTU Buddy Flex Heater

Best price now

$129.00at WalmartChecked 18 h ago

Compared across 7 stores. Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $129.00 at Walmart on Nov 9.
Checked at 7 stores.

Our take on the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater

The Mr. Heater Buddy Flex is a portable propane radiant heater rated at 8,000 to 11,000 BTU, with a ceramic burner that spreads heat across 180 degrees. It runs on a 1 lb propane cylinder or a hose to a larger tank, and its Life Safety System adds an oxygen depletion sensor, a thermal shut-down and a tip-over switch. A quick-connect port accepts Mr. Heater Flex accessories such as a fan or hose. It suits campers, hunters, garage and job-site users and emergency backup, but it is a fuel-burning indoor heater, so it needs ventilation and is not a set-and-forget appliance like an electric space heater.

Best forCampers and hunters heating tents and blindsGarage, workshop and job-site spot heatPower-outage and emergency backupPatio and ice-fishing use with ventilation

Pros

Radiant ceramic heat reaches people and objects directly, not just the air
Adjustable 8,000 to 11,000 BTU output with three heat settings
180-degree burner spreads warmth wider than a single-face heater
Oxygen depletion sensor, thermal shut-down and tip-over switch built in
Quick-connect port for Flex accessories like a fan or hose
Wind barrier and pilot guard help the burner stay lit outdoors

Cons

Burns propane, so it needs ventilation and produces moisture and carbon monoxide
No thermostat; output is set by hand and heat tapers as the tank chills
1 lb cylinders run out quickly at high output, so a bulk tank and hose are near-essential
Bulky and about 11 lb, heavier than small electric space heaters
Fan accessory is sold separately

Mr. Heater 8,000-11,000 BTU Buddy Flex Heater prices at every store

WalmartNew
In stock
$129.00Free shippingChecked 18 h ago
Visit Walmart
The Home DepotNew
In stock
$129.00Free shippingChecked 18 h ago
Visit The Home Depot
Blain's Farm & FleetNew
In stock
$149.99Checked 18 h ago
Visit Blain's Farm & Fleet
Tractor Supply CoNew
In stock
$149.99Free shippingChecked 18 h ago
Visit Tractor Supply Co
Dick's Sporting GoodsNew
In stock
$149.99+ $9.99 shippingChecked 18 h ago
Visit Dick's Sporting Goods
Ace HardwareNew
In stock
$169.99Free shippingChecked 18 h ago
Visit Ace Hardware
Lowe'sNew
In stock
$179.00Free shippingChecked 18 h ago
Visit Lowe's

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WalmartCheck price at Walmart

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Mr. Heater 8,000-11,000 BTU Buddy Flex Heater price history

Lowest price we've seen: $129.00 on Nov 9 at The Home Depot. Tracked across 7 stores since Nov 9.

What reviewers say

4.2 / 5437 ratings

Owners rate it well for fast, strong radiant heat in tents, garages and ice shacks, and they trust the safety shut-offs. Complaints center on propane consumption, the lack of a thermostat and the cost of accessories.

What people mention

Heat outputPraisedOwners say it warms a tent or garage fast and the radiant heat is felt at a distance.
Propane useCriticisedReviewers report 1 lb cylinders empty quickly at the higher settings, pushing them to bulk tanks.
Safety shut-offsPraisedThe oxygen depletion sensor and tip-over switch are cited as reasons buyers trust it indoors with ventilation.
ThermostatCriticisedWithout a thermostat, users say the space swings between overheated and chilly.
AccessoriesMixedThe Flex port is liked, but the fan and hose are extra purchases many resent.
PortabilityMixedIt is easy enough to move around camp, but heavy once a cylinder is attached.

About the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater

The portable heater that North America loves is ready to flex. The new Buddy FLEX shows its muscle with adjustable heat settings providing up to 11,000 BTU of radiant heat. The Omni-Directional burner keeps the cold from sticking around, with 180° of coverage. With the heaters Life Safety System you won’t sweat too much knowing the oxygen depletion sensor, thermal shut-down system, and tip-over switch are keeping you safe. Other features include an optimized wind barrier and pilot guard, which lets the burner take any blows the wind may give. But it’s not just a heater. The accessory quick connect port allows it to be used with FLEX accessories, showing how flexible the Buddy can be. Ready to chase the wimpy cold away? Just FLEX.

Specifications

color: OtherSource
actual_color: Flex HeaterSource
finish: RedSource
size: 1Source
Watt (Max) (W): 1100Source

Questions and answers

Can I use the Buddy Flex indoors?: Yes, in a ventilated space such as a garage, workshop or tent, following the manual's clearance and ventilation rules. It burns propane and gives off carbon monoxide, so never use it in a sealed room or a bedroom while sleeping.
What is the difference from the original Mr. Heater Buddy?: The Flex adds a 180-degree omni-directional burner, a quick-connect accessory port and an optimized wind barrier and pilot guard. Output is similar at 8,000 to 11,000 BTU.
How long does a 1 lb propane cylinder last?: Roughly a few hours at the highest setting and longer on low. For all-day heat, run it from a 20 lb tank with a hose and filter.
What accessories fit the quick-connect port?: Mr. Heater Flex accessories, including a battery fan to push warm air and a hose assembly for bulk tanks. They are sold separately.
Does it need electricity?: No. Ignition is manual and the burner runs on propane alone, so it works in a power outage. The optional fan needs batteries.
How much space will it heat?: Mr. Heater rates it for roughly 200 to 300 square feet depending on insulation and outdoor temperature. Radiant heat works best aimed at people, not empty rooms.
Where is the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater cheapest?: At Walmart, for $129.00, as of our latest check.
What do buyers say about the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater?: Rated 4.2 out of 5 from 437 ratings.
Where can I buy the Mr. Heater 8,000-11,000 BTU Buddy Flex Heater?: 7 stores we checked sell it, including Walmart, The Home Depot, Blain's Farm & Fleet, Dick's Sporting Goods, Tractor Supply Co.