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Flame King
Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor

Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor

4.4· 16 ratings

Best price now

$135.95at Flame KingObserved Nov 1, 2026, 1:12 PM

37% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Quick answers

Where is the Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor cheapest?
At Flame King, for $135.95, 37% under what the other stores charge, as of our latest check.
What do buyers say about the Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor?
Rated 4.4 out of 5 from 16 ratings. Buyers like: Heats an enclosed porch quickly, about 10 minutes from 48 to 68; Very quiet compared to tower-style propane heaters without a thermostat; Lights easily when following the instructions. Common complaints: Must run near high to stay lit; thermostat doesn't keep it running long at lower settings; Uses much more propane than a Big Buddy heater.
Where can I buy the Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor?
5 stores we checked sell it, including Flame King, eBay, Omni Outdoor Living, Tweetys RV and Truck Accessories, Flame King Products.

Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor prices at every store

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  • Flame KingNew

    In stock

    $135.95Observed Nov 1, 2026, 1:12 PM
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  • eBayNew

    In stock

    $189.95Observed Nov 1, 2026, 1:12 PM
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  • Omni Outdoor LivingNew

    In stock

    $215.00Observed Nov 1, 2026, 1:12 PM
    Visit store
  • Tweetys RV and Truck AccessoriesNew

    In stock

    $338.87Observed Nov 1, 2026, 1:12 PM
    Visit store

Also available at

  • Flame King ProductsCheck price at Flame King Products

Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor price history

Lowest price we've seen: $135.95 on Nov 1 at Flame King. Tracked across 4 stores since Nov 1.

From Flame King Products

  • 20,000 BTU radiant propane heater for indoor and outdoor use
  • Built-in safety fuel shutoff, tilt shutoff and exterior grate guard
  • Auto-ignition and thermostat dial for heat control
  • Built-in fan circulates heat evenly (four D-cell batteries required, not included)
  • Molded carry handle for easier transporting
  • Runs up to 2 hours on two 1 lb propane cylinders at 20,000 BTU
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About the Flame King Portable Heater 20,000 BTU Propane Gas Tank Space Radiant Indoor & Outdoor

Powerful 20,000 BTU Heat Wherever You Need It

Cold weather doesnt have to shut down your plans. This 20,000 BTU Portable Propane Camping Heater brings serious warmth to cabins, tents, trailers, ice fishing huts, enclosed porches, and more. Designed for quick setup, simple operation, and dependable heat, its the go-to solution for anyone who wants comfort without the hassle of firewood or ash.

Big Heat, Zero Hassle

With auto-ignition and an easy-to-use thermostat dial, you get instant heat and precise comfort control. Just connect up to two 1LB propane cylinders and enjoy up to 2 hours of strong, steady warmth.

Built-In Safety Features You Can Count On

This heater is loaded with safety essentials, including a fuel shutoff system, tilt shutoff, and a full grate guard to keep operation smooth and worry-free.

Efficient Thermostatic Technology

The advanced thermostatic system automatically regulates output to maintain your selected temperature, delivering the most efficient performance in its class and helping you stretch fuel usage in cold conditions.

Comfort That Travels Anywhere

A molded carry handle makes moving it around simple, and the built-in fan runs on four D-cell batteries (not included) to circulate heat more evenly throughout your space.

Specifications:

• Heat Output: 20,000 BTU

• Fuel: Up to two 1LB propane cylinders (not included)

• Runtime: Up to 2 hours on two cylinders

• Safety Features: Fuel shutoff, tilt shutoff, exterior grate guard

• Ignition: Auto-ignition

• Controls: Thermostat dial

• Weight: 20.8 lb

• Dimensions: 18 x 17.5 x 12 inches

Click HERE for the Product Manual

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Quality and Service

At Flame King, we manufacture propane tanks and cylinders trusted worldwide for their exceptional quality and reliability. Our commitment to excellence goes beyond the products - we're dedicated to providing outstanding service to every customer. Each tank we produce exceeds industry standards and is crafted in award-winning facilities recognized for their focus on safety and quality. With Flame King, you can count on superior performance and complete peace of mind.

Certifications You Can Count On

What buyers say

Buyers like
  • Heats an enclosed porch quickly, about 10 minutes from 48 to 68
  • Very quiet compared to tower-style propane heaters without a thermostat
  • Lights easily when following the instructions
  • Thermostat cycles on and off as advertised
  • Quick disconnect for a 20–30 lb remote tank makes tank changes easy
  • Works as advertised and is worth the money
Buyers complain about
  • Must run near high to stay lit; thermostat doesn't keep it running long at lower settings
  • Uses much more propane than a Big Buddy heater
  • Not as easy to start as other similar heaters
  • Thermostat isn't instant on/off and flutters at first
  • Fan has only marginal value

Specifications

Heat Output
20,000 BTUSource
Fuel
Up to two 1LB propane cylinders (not included)Source
Runtime
Up to 2 hours on two cylindersSource
Safety Features
Fuel shutoff, tilt shutoff, exterior grate guardSource

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Ignition
Auto-ignitionSource
Controls
Thermostat dialSource
Weight
20.8 lbSource
Dimensions
18 x 17.5 x 12 inchesSource
Fan Power
four D-cell batteries (not included)Source
Certification
CSA certifiedSource
Warranty
1-Year Manufacturer’s Defect WarrantySource
Model Number
YSN-CHS20Source