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The best heater for emergency heat earns its place on the night the power goes out, the house starts to cool, and the only warmth in the room comes from a heater you can light without mains power. We compared propane and kerosene heaters on heat output, run time, stated safety features and warranty terms, and ranked them by the Solar Score. The picks below cover radiant propane heaters, a tank top heater and a kerosene stove, so you can match the fuel and the output to the space you need to keep warm.
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Quick picks
Best Overall Mr. Heater Portable Buddy: low oxygen system and two heat settings for a 225 sq ft space Check price on Amazon
Highest BTU Output Mr. Heater 540-Degree Tank Top: 45,000 BTU on high with a 9.5 hour run time on a 20 lb tank Check price on Amazon
Best Kerosene Pick vnekjse Kerosene Heater 6L: 10,000 BTU with a 6L tank and tip-over shut-off Check price on Amazon
Best Heater and Stove PASAMIC Propane Heater Stove: 9000 BTU with a hose included for larger propane tanks Check price on Amazon
Most Portable CAYNEL Propane Heater Stove: 9000 BTU and a 935-1110°F cooking range in a small steel body Check price on Amazon
The kits we chose
| # | Product | Solar Score | Buy |
|---|---|---|---|
| 1 | Mr. Heater Portable Buddy | 9.7/10 | Buy on Amazon |
| 2 | Mr. Heater 540-Degree Tank Top | 9.7/10 | Buy on Amazon |
| 3 | vnekjse Kerosene Heater 6L | 9.6/10 | Buy on Amazon |
| 4 | PASAMIC Propane Heater Stove | 9.4/10 | Buy on Amazon |
| 5 | CAYNEL Propane Heater Stove | 9.4/10 | Buy on Amazon |
Mr. Heater Portable Buddy
A 9,000 BTU radiant propane heater with low and high settings, a low oxygen safety system and a listed 225 sq ft coverage area.
Pros
- Two heat settings at 4,000 or 9,000 BTU per hour
- Emergency low oxygen safety system stated
- Runs 5.4 hours on low and 2.4 hours on high with a 1 lb propane cylinder
- Self-extinguishing materials stated in the construction
Cons
- Heats up to approximately 225 square feet, so larger rooms need more heat
- A 1 lb cylinder is the only fuel size stated, so longer outages need spare cylinders
- No hose or larger tank connection is stated
- The maker lists it as designed and approved for outdoor use
Detailed Review
The listing states 4,000 or 9,000 BTU per hour of radiant heat, two temperature settings, a low oxygen safety system and coverage of up to approximately 225 square feet. It runs 5.4 hours on low and 2.4 hours on high with a 1 lb propane cylinder, and the construction uses self-extinguishing materials. It measures 13.4 by 15.0 by 8.3 inches and weighs 7.1 pounds, with a 1-Year Limited warranty. The title marks this listing for Canada.
Who it's for: households that want a compact radiant propane heater with a stated low oxygen system for a room of up to approximately 225 square feet. Who should skip it: buyers who need heat for a larger space or a heater listed for indoor use.
Its Solar Score of 9.7/10 comes from performance 30/35, build 22/25, value 21/25, safety 8/10 and warranty 3/5: 84 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Heat output | 4,000 or 9,000 BTU/hr |
|---|---|
| Coverage | Up to approximately 225 sq ft |
| Run time | 5.4 hours low, 2.4 hours high |
| Weight | 7.1 pounds |
Taken from the seller's listing on 14 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Emergency low oxygen safety system and self-extinguishing materials stated, so safety scores 8 of 10. 1-Year Limited warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
Mr. Heater 540-Degree Tank Top
A 45,000 BTU tank top radiant propane heater with a high-medium-low regulator and a tip-over safety shut-off switch.
Pros
- 45,000 BTU on high, with 36,000 and 30,000 BTU settings
- Approximate 9.5 hour run time on high with a 20 lb tank
- Tip-over safety shut-off switch stated
- Mounts directly to a 20 lb tank for easy portability
Cons
- Outdoor use only, so it does not suit an indoor outage
- A 20 lb tank is needed and is not listed as included
- No setting below 30,000 BTU is stated
- No carry handle or case is stated
Detailed Review
The listing states a multi-directional radiant propane heater that mounts directly to a 20 lb tank, with a high-medium-low regulator at 45,000, 36,000 and 30,000 BTU. It gives an approximate 9.5 hour run time on high with a 20 lb tank and a tip-over safety shut-off switch, and marks the heater for outdoor use only. It measures 10.4 by 10.4 by 17.5 inches and weighs 5.62 pounds, with a 1 Year Limited warranty.
Who it's for: buyers who need the most heat in this group for an outdoor space and already keep a 20 lb propane tank on hand. Who should skip it: anyone who needs indoor heat or a heater with a low setting below 30,000 BTU.
Its Solar Score of 9.7/10 comes from performance 33/35, build 21/25, value 20/25, safety 7/10 and warranty 3/5: 84 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Heat output | 45,000-36,000-30,000 BTU |
|---|---|
| Run time | Approximate 9.5 hours on high |
| Tank | Mounts to a 20 lb tank |
| Weight | 5.62 pounds |
Taken from the seller's listing on 14 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Tip-over safety shut-off switch stated, so safety scores 7 of 10. 1 Year Limited warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
vnekjse Kerosene Heater 6L
A 10,000 BTU kerosene heater with a 6L tank, a flame adjuster and a tip-over shut-off device, needing no electricity.
Pros
- 10,000 BTU maximum output with 360° heating stated
- 6L fuel tank, larger than the 4.5L tank of the earlier model
- Tip-over shut-off device, sealed fuel filler cap and protective safety grills stated
- Fuel gauge lets you check fuel levels in real time
Cons
- No warranty term is stated
- Kerosene is the only fuel stated, so a separate fuel supply is needed
- No run time on a full tank is stated
- The 6L tank needs refilling during a long outage, since fuel use is stated at 0.2L per hour
Detailed Review
The listing states a maximum of 10,000 BTU per hour, a 6L fuel tank increased from 4.5L, fuel use of 0.2L per hour and heat for a room of about 20–30 square meters. It lists a flame adjuster, a sealed fuel filler cap, protective safety grills, an automatic tip-over shut-off device, a fuel gauge and a one-touch flame-out device, plus a removable enamel top and a height-adjustable hood for cooking. It measures 11.8 by 11.8 by 16.5 inches. No warranty term is stated.
Who it's for: buyers who want kerosene heat with no electricity needed and a stove top that can also cook. Who should skip it: buyers who want a stated warranty term or a heater that runs on propane.
Its Solar Score of 9.6/10 comes from performance 29/35, build 21/25, value 21/25, safety 8/10 and warranty 0/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Heat output | 10,000 BTU/H |
|---|---|
| Fuel tank | 6L |
| Fuel use | 0.2L/hr |
| Size | 11.8 x 11.8 x 16.5 inches |
Taken from the seller's listing on 14 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. Automatic tip-over shut-off device, protective safety grills and sealed fuel filler cap stated, so safety scores 8 of 10. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
PASAMIC Propane Heater Stove
A 9000 BTU portable propane heater and stove with a hose included, adjustable flames and vents, and room for 110g and 230g canisters.
Pros
- 9000 BTU output with adjustable flames and vents
- Hose included for connecting a larger propane tank
- 110g and 230g propane canisters fit inside the stove
- Light and compact at 2.52 pounds
Cons
- No warranty term is stated
- Lighter and cooking utensils are not included
- No safety shut-off is stated
- Needs a long-reach lighter to ignite
Detailed Review
The listing states a 2-in-1 portable propane heater and stove with 9000 BTU of adjustable output, adjustable flames and vents, and a protective nano-coating. Standard 110g and 230g propane canisters fit inside the stove, or a larger propane tank connects with the hose, which is included, and the hose measures 39 inches. Ignition uses a common long-reach lighter, and cooking utensils and the lighter are not included. It measures 7.09 by 7.09 by 8.27 inches and weighs 2.52 pounds. No warranty term is stated.
Who it's for: campers and ice fishing trips where one small unit must both heat and cook. Who should skip it: buyers who want push-button ignition or a stated safety shut-off.
Its Solar Score of 9.4/10 comes from performance 28/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 68 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Heat output | 9000 BTU |
|---|---|
| Hose | 39 inches, included |
| Canisters | 110g and 230g |
| Size | 7.09 x 7.09 x 8.27 inches |
Taken from the seller's listing on 14 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
CAYNEL Propane Heater Stove
A 2-in-1 portable propane heater and stove with a 9000 BTU maximum output and a cooking temperature range of 935-1110°F.
Pros
- 9000 BTU maximum output with adjustable fire valves
- Cooking temperature range of 935-1110°F stated
- Steel and copper materials stated for durability
- Handle design makes it easy to carry
Cons
- No run time or fuel use figure is stated
- No safety shut-off is stated
- No canister or tank size is stated
- No coverage area is stated
Detailed Review
The listing states a 2-in-1 portable propane heater and stove with a maximum output of 9000 BTU, a cooking temperature range of 935-1110°F and adjustable fire valves. It lists high-quality steel and copper materials, a handle design for easy carrying, and heat in just a few seconds. It measures 17.5 by 17.5 by 21 cm. No warranty term is stated, and no run time or coverage area is stated.
Who it's for: buyers who want a small heater and stove in one unit for a tent or a small space. Who should skip it: buyers who want a stated run time, a stated coverage area or a stated safety shut-off.
Its Solar Score of 9.4/10 comes from performance 28/35, build 20/25, value 19/25, safety 0/10 and warranty 0/5: 67 of 100 points, placed on our 9.2 to 9.8 scale.
Key Specifications
| Heat output | 9000 BTU |
|---|---|
| Cooking temperature | 935-1110°F |
| Size | 17.5 x 17.5 x 21 cm |
| Color | Orange |
Taken from the seller's listing on 14 November 2026. Capacity and output figures are rated by the manufacturer.
Safety and Warranty
What this listing states. No safety listing, protection or rating is stated, so safety scores zero. No warranty term, so warranty scores zero. See How We Pick.
Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.
This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.
As an Amazon Associate I earn from qualifying purchases.
More picks to compare
vnekjse Kerosene Heater 6L Black10,000 BTU kerosene heat with tip-over shut-off for indoor or camping useCheck on Amazon
WELLUCK Propane Heater 18000 BTUThree heat settings up to 18,000 BTU with ODS and tip-over protectionCheck on Amazon
cdar Kerosene Heater 9000 BTU9000 BTU radiant heat with a 4.5L tank for 16 to 21 hoursCheck on Amazon
Titunjian Kerosene Heater 9000 BTU9000 BTU with a 4.6L tank and 15 to 17 hours of heatCheck on Amazon
Numbers side by side
| Heater | Solar Score | Heat output | Fuel | Run time | Warranty | Amazon |
|---|---|---|---|---|---|---|
| Mr. Heater Portable Buddy | 9.7/10 | 9,000 BTU | Propane | 5.4 h low, 2.4 h high | 1 year | View on Amazon |
| Mr. Heater 540-Degree Tank Top | 9.7/10 | 45,000 BTU | Propane | 9.5 h high | 1 year | View on Amazon |
| vnekjse Kerosene Heater 6L | 9.6/10 | 10,000 BTU | Kerosene | Not stated | Not stated | View on Amazon |
| PASAMIC Propane Heater Stove | 9.4/10 | 9000 BTU | Propane | Not stated | Not stated | View on Amazon |
| CAYNEL Propane Heater Stove | 9.4/10 | 9000 BTU | Propane | Not stated | Not stated | View on Amazon |
These specs are rated by the maker and quoted from each listing on 14 November 2026.
Where the points went
The Solar Score weighs performance, build, value, safety and warranty. For a heater, safety means the shut-off devices, oxygen sensors and guards the listing actually states; a heater that states none scores zero on that line, whatever its BTU figure. Two of the five heaters state a warranty term, and only the two Mr. Heater listings state one. How we pick explains the weights.
| Product | Solar Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Mr. Heater Portable Buddy | 9.7 | 30 | 22 | 21 | 8 | 3 |
| Mr. Heater 540-Degree Tank Top | 9.7 | 33 | 21 | 20 | 7 | 3 |
| vnekjse Kerosene Heater 6L | 9.6 | 29 | 21 | 21 | 8 | 0 |
| PASAMIC Propane Heater Stove | 9.4 | 28 | 20 | 20 | 0 | 0 |
| CAYNEL Propane Heater Stove | 9.4 | 28 | 20 | 19 | 0 | 0 |
Every total is translated into a figure between 9.2 and 9.8 with a linear formula; ranking by points and ranking by score always agree.
How to choose the best heater for emergency heat
Match heat output to the space
The Portable Buddy lists coverage of up to approximately 225 square feet, and the vnekjse kerosene heater lists a room of about 20–30 square meters, so start from the room you need to keep warm and work back to the BTU figure. The tank top heater puts out 45,000 BTU on high, the most in this group, but it is marked outdoor use only, so it suits a porch or a yard rather than a room. See our best emergency heater for power outage guide for more outage picks.
Propane or kerosene
Four of the five picks run on propane and one runs on kerosene, and the fuel you already store at home may settle the choice. Propane picks connect to cylinders or canisters you can swap, while the kerosene heater fills from a 6L tank and needs no electricity at all. If you want to compare heater types in more depth, see our infrared vs catalytic propane heater guide.
| Heater | Fuel | Heat output |
|---|---|---|
| Mr. Heater Portable Buddy | Propane | 9,000 BTU |
| Mr. Heater 540-Degree Tank Top | Propane | 45,000 BTU |
| vnekjse Kerosene Heater 6L | Kerosene | 10,000 BTU |
| PASAMIC Propane Heater Stove | Propane | 9000 BTU |
| CAYNEL Propane Heater Stove | Propane | 9000 BTU |
Run time and the fuel you keep on hand
The Portable Buddy runs 5.4 hours on low and 2.4 hours on high with a 1 lb propane cylinder, so a short outage takes one cylinder and a long one takes spares. The tank top heater runs an approximate 9.5 hours on high with a 20 lb tank. The kerosene heater states fuel use of 0.2L per hour from a 6L tank, and the PASAMIC stove takes 110g and 230g canisters or a larger tank through its included hose. See our best propane camp stove guide for more stove picks.
Safety features worth checking
The Portable Buddy states an emergency low oxygen safety system, and the tank top heater and the kerosene heater both state a tip-over shut-off. The kerosene heater adds a sealed fuel filler cap and protective safety grills. The tank top heater is marked outdoor use only, and the Portable Buddy is listed as designed and approved for outdoor use, so read the use limits on each listing before you choose.
Sizing Notes
- Match heat output to the space: the Portable Buddy lists up to approximately 225 square feet, and the kerosene heater lists about 20–30 square meters.
- Check run time against the fuel you have on hand: the Portable Buddy runs 5.4 hours on low and 2.4 hours on high with a 1 lb propane cylinder, and the tank top heater runs an approximate 9.5 hours on high with a 20 lb tank.
- Keep the fuel matched to the heater: propane for the Mr. Heater, PASAMIC and CAYNEL picks, kerosene for the vnekjse heater, and canisters of 110g or 230g for the PASAMIC stove.
- Note the safety features each listing states: a low oxygen system on the Portable Buddy, and a tip-over shut-off on the tank top heater and the kerosene heater.
- Read the warranty lines: the two Mr. Heater listings state a 1 year term, and the other three state no term.
FAQ: power away from the grid
Which heater here puts out the most heat?
The Mr. Heater 540-Degree tank top heater, at 45,000 BTU on high, with 36,000 and 30,000 BTU settings below it.
How long does the Portable Buddy run on one cylinder?
The listing states 5.4 hours on low and 2.4 hours on high with a 1 lb propane cylinder.
Which of these heaters is listed for indoor use?
The vnekjse kerosene heater is listed for indoor use, and its bullets say it needs no electricity. The two Mr. Heater listings are listed for outdoor use, and the tank top heater is marked outdoor use only.
Can any of these heaters cook as well as heat?
Yes. The CAYNEL and PASAMIC picks double as stoves, with the CAYNEL listing a cooking temperature range of 935-1110°F, and the vnekjse kerosene heater can heat, boil, cook and barbecue.
What warranty terms do the listings state?
The two Mr. Heater heaters state a 1 year limited warranty. The other three listings state no warranty term.
Related solar guides
See every Emergency Prep guide and all Camping and Emergency Gear guides.
More picks: best emergency heater for power outage, best butane canister heaters for camping, best emergency lights for power outage, what is emergency preparedness.
