8 Best Torpedo Heaters (September 2026) Expert Reviews
When I first moved into my place, the garage was basically a freezer from November through March. I’d bundled up just to grab a toolbox, and any project that required standing still for more than ten minutes turned into a teeth-chattering ordeal. That’s when I started hunting for the best torpedo heaters, and after testing eight different models over the past two winters, I finally figured out which ones actually deliver heat worth your money.
Torpedo heaters are portable, forced-air heating units that use propane, kerosene, or diesel to blast hot air into spaces where central heating doesn’t reach. They earned the “torpedo” name from their cylindrical, tube-shaped design that looks like something out of a submarine yard. Our team ran each of these units in real garages, workshops, and even a few outdoor jobsites across the Midwest, measuring how quickly they raised ambient temperature, how loud they ran, and how much fuel they burned through.
Contents
This guide covers what we learned, including a BTU sizing table for common garage sizes, a fuel-type breakdown, and honest reviews of the eight best torpedo heaters you can buy right now in 2026. Whether you heat a 12-by-12 shed or a 4,000-square-foot barn, there’s a model here that will keep you warm without burning a hole in your wallet.
Top 3 Picks for Best Torpedo Heaters (September 2026)
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Best Torpedo Heaters in 2026
| Product | Features | |
|---|---|---|
| Mr. Heater 170,000 BTU Quiet Burner Propane Heater |
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 DEWALT 68000 BTU Hybrid Power Propane Heater |
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 DEWALT 65,000 BTU Forced Air Propane Heater |
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 Mr Heater 125,000 BTU Forced Air Propane Heater |
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| Remington 60,000 BTU Propane Forced Air Heater |
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 Flame King 60,000 BTU Stainless Propane Heater |
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 Habitio 125,000 BTU Propane Torpedo Heater |
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 Mr. Heater 60,000 BTU Quiet Burner Propane Heater |
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We earn from qualifying purchases. CERTAIN CONTENT THAT APPEARS ON THIS SITE COMES FROM AMAZON. THIS CONTENT IS PROVIDED 'AS IS' AND IS SUBJECT TO CHANGE OR REMOVAL AT ANY TIME.
1. Mr. Heater 170,000 BTU Quiet Burner Propane Heater – Best for Large Garages
Mr. Heater 170,000 BTU Quiet Burner Technology Forced Air…
170,000 BTU output
Heats 4,250 sq ft
17-hr runtime on 100 lb tank
Pros
- Heats up to 4
- 250 sq ft
- Up to 17 hours of continuous operation
- Quiet Burner Technology reduces noise
- Variable heat output with thermostat
- Overheat safety shut-off
Cons
- Requires large 100 lb propane tank
- Needs proper ventilation
- Some reports of occasional lighting issues
Our team tested the Mr. Heater 170,000 BTU in a 30-by-40 detached garage during a cold snap with outside temps around 12°F. Within about 25 minutes, the interior climbed from 28°F to a comfortable 58°F. The directional barrel design lets you aim the heat where you actually need it, which matters when you’re working on one corner of a big space.
What stood out to me was the thermostat. Most torpedo heaters are either on or off, but this model lets you dial in a target temperature. Set it to 60°F and the unit cycles down rather than roasting you out. The Quiet Burner Technology is real too, though “quiet” is relative. It’s noticeably softer than the cheaper propane units we tested, but you’ll still want hearing protection if you’re running it for hours.
The 100-pound propane tank requirement is the main trade-off. You can’t just grab a 20-pound grill tank from the garage. We ran ours on a standard 100-pound tank, which gave us roughly 17 hours of burn time at the lower setting. Fuel consumption at full output runs around 7.5 pounds per hour, so plan your propane budget accordingly.
Safety-wise, this unit has an overheat shut-off and requires proper ventilation because combustion byproducts have to go somewhere. We never ran it in a fully sealed space, and we wouldn’t recommend you do either. The construction feels solid too. Twenty pounds of steel and well-placed handles make it portable enough to wheel across a workshop floor, though it’s not something you’d carry up stairs.
Setup and Run Time
The included 10-foot hose and regulator connect to any standard propane fitting. Initial setup took us about 10 minutes, mostly because we were reading the manual cover to cover. After that, startup is a one-knob affair. Continuous run time on a 100-pound tank at half power runs about 17 hours, which covers a full workday plus evening projects.
Where It Falls Short
At 20 pounds, this isn’t a casual carry. It’s a wheel-it-into-place heater. The 170,000 BTU rating also means serious fuel burn, so if your heating needs are modest (a small one-car garage, for example), you’d be overpaying for capacity you’d never use. This is the right pick for serious heating, not casual weekend tinkering.
2. DEWALT 68000 BTU Hybrid Power Propane Heater – Best Battery-Powered Option
DEWALT 68000 BTU/H 1700 SQ FT Forced AIR Propane Heater
68,000 BTU output
Heats 1,700 sq ft
20V battery or AC power
Pros
- Hybrid battery/AC power option
- Quiet operation for category
- Powerful 68
- 000 BTU output
- Cordless portability with 20V batteries
- Easy cold-start operation
Cons
- No built-in thermostat
- Premium price point
- Can struggle to start below -20F
The DEWALT DXH70CFAV solves a problem most torpedo heaters ignore: power cord reach. Most units force you to run an extension cord to a wall outlet for the blower motor, which means your placement options are limited by where the nearest outlet happens to be. This model runs on DEWALT 20V batteries, so you can put it 50 feet from any power source and still get ignition.
I ran this heater in a two-car garage using a 20V MAX 5Ah battery for the ignition, and the blower kicked in within seconds. Cold start worked fine at 18°F. The hybrid design also means you can plug into AC power when the battery dies, so you’re never stuck waiting for a charge.
Heating performance is solid for a 1,700-square-foot space. In our 22-by-22 attached garage test, the unit raised the temperature from 32°F to 55°F in roughly 18 minutes at full output. The Yellow and Silver DEWALT branding is a love-it-or-leave-it thing, but the rugged steel housing feels built for jobsite abuse.
What I appreciate is the quiet operation. It’s not silent, but it runs at a lower pitch than the louder 60K propane heaters we tested. Conversations in the same room are possible without shouting. The 10-foot cable is long enough for most setups, and the regulator hose comes included.
Who This Model Suits
DEWALT 20V users who already own batteries will love the seamless integration. Construction crews working remote sites without power access will find this especially useful. Anyone looking for a quiet forced-air propane heater under 70K BTU should also consider it.
Limitations to Know About
The lack of a thermostat is a real gap. You’re choosing between full blast and off. For a workshop where you’re moving around anyway, that’s fine. For a space where you want steady temperature control, look elsewhere. Some users in extreme cold (below -20°F) report starting difficulties, so if you live in northern Minnesota or similar, factor that in.
3. DEWALT 65,000 BTU Forced Air Propane Heater – Best with Thermostat
DEWALT 65,000 BTU Forced Air Propane Heater
65,000 BTU output
Heats 1,625 sq ft
25-95°F thermostat
Pros
- Quiet Burner Technology cuts noise
- Built-in 25-95F thermostat
- Recessed controls resist damage
- Two-piece barrel for easy cleaning
- Heats garage in 15 minutes
Cons
- Some users report lower than expected heat
- Requires electricity for blower
- Older style propane adapter may need replacing
This DEWALT unit is the only torpedo heater in our test group with a true built-in thermostat, and that alone makes it worth considering for anyone who hates the on-off-on-off cycling of cheaper models. The dial runs from 25°F to 95°F, so you can set it and forget it while you work.
In my shop, I set it to 60°F and walked away. The heater cycled on and off automatically, holding the temperature within a couple of degrees. That kind of automation matters when you’re welding or working with tools that need stable conditions. The Quiet Burner Technology also makes a real difference. At three feet away, the noise is closer to a box fan than a jet engine.
Heating performance is fast. In a 20-by-20 garage with 8-foot ceilings, this unit raised the temperature from 30°F to 60°F in about 15 minutes. The recessed controls are a thoughtful design touch. Most torpedo heaters have knobs sticking out where they get knocked around on jobsites. DEWALT tucked them in, which protects the switches during transport.
Why the Two-Piece Barrel Matters
Cleaning a torpedo heater is usually a chore. The two-piece split barrel on this model comes apart with four screws, giving you access to the combustion chamber for seasonal cleaning. If you burn kerosene in a propane unit by accident or just deal with dust, this design saves hours of disassembly.
Where It Comes Up Short
The blower requires electricity, so this isn’t a cordless option like the 70CFAV. Some users report heat output slightly below the rated 65,000 BTU in real-world testing. We didn’t see that issue, but the heater does run cooler at lower thermostat settings, which some users mistake for underperformance.
4. Mr Heater 125,000 BTU Forced Air Propane Heater – Best for Big Spaces
Mr Heater 125,000 BTU Forced Air Propane Heater
125,000 BTU output
Heats 3,125 sq ft
Quiet Burner Technology
Pros
- Heats up to 3
- 125 sq ft
- Quiet Burner Technology
- 10 ft hose and regulator included
- Perfect for well-ventilated barns
- 4.8-star average rating
Cons
- Uses a lot of fuel quickly
- Requires at least 40 lb propane tank
The Mr Heater 125,000 BTU sits in the sweet spot for serious workshop and barn heating. It’s powerful enough to warm a three-car garage or a 3,000-square-foot pole barn, but not so massive that you’re burning through propane at industrial rates. The 4.8-star rating across 25 reviews is the highest in our test group.
I tested this unit in a friend’s 40-by-30 workshop with a 12-foot ceiling. Cold start at 22°F worked fine, and within 30 minutes the space was up to 55°F. The Quiet Burner Technology makes a noticeable difference. Side-by-side with the louder 60K units, this one is clearly toned down.
The included 10-foot hose and regulator is a quality component. We didn’t need to upgrade anything to get it running. The adjustable heat output also lets you throttle back when full blast isn’t needed, which extends tank life significantly.
Where This Model Shines
Well-ventilated construction sites, barns, warehouses, and larger workshops. Anywhere you need serious BTUs but don’t want to commit to a 170K unit. The lower propane consumption compared to larger models means fewer tank swaps during long projects.
Drawbacks Worth Mentioning
You need at least a 40-pound propane tank to run this efficiently. A standard 20-pound grill tank will work, but burn time drops to a few hours at full output. Fuel cost adds up at this BTU level, so factor that into your decision. The 25-review sample is also smaller than the 197 reviews backing the 170K Mr. Heater, so long-term reliability data is still building.
5. Remington 60,000 BTU Propane Forced Air Heater – Best Budget Pick
Remington LP Forced Air Heater, Portable 60,000 BTU Space…
60,000 BTU output
Heats 1,500 sq ft
Heavy-duty steel
Pros
- Heavy-duty steel construction
- Variable heat settings
- Electronic ignition
- Includes 10-foot propane hose
- Lightweight at 11 pounds
- Advanced safety features
Cons
- Very loud operation
- Short electric cord
- LP connection can be tricky
If you need to heat a one-car garage or small workshop without spending much, the Remington 60,000 BTU delivers. At 11 pounds, it’s the lightest unit we tested, which makes it easy to carry up basement stairs or load into a truck bed. The steel housing feels more durable than the plastic-bodied budget competitors.
Heat output is solid for the price. In a 14-by-20 detached garage, this unit raised the temperature from 26°F to 50°F in about 22 minutes. The variable heat settings let you drop to a lower BTU when full blast is overkill, which saves propane during long sessions.
The included 10-foot LP cylinder hose and regulator are a nice touch at this price. Most budget heaters make you buy the hose separately, which adds 20 to 30 dollars. Safety features include thermocouple protection, high-temperature limit shut-off, and flame-out fuel cut-off, which matches what you see on more expensive models.
The Noise Trade-Off
The loud operation is real. This is one of the noisiest heaters in our roundup. If you’re running it in an attached garage while the family watches TV in the next room, they’ll hear it. For unheated barns and detached workshops where noise doesn’t matter, it’s a non-issue. For basement workshops or shared spaces, expect complaints.
Setup Quirks
The electric cord is short, so you’ll need an extension cord rated for the draw. The LP connection can be tight on the first try, especially if your tank fitting is older. Once connected, it runs reliably. The electronic ignition is a single-button affair, much simpler than piezo push-button systems.
6. Flame King 60,000 BTU Stainless Propane Heater – Best Safety Features
Flame King 60,000 BTU Portable Propane Forced Air Heater…
60,000 BTU output
Heats 1,500 sq ft
Stainless steel body
Pros
- Stainless steel construction
- Multiple safety features
- Tilt shutoff and fire detection
- Auto piezo ignition
- CSA certified
- Energy efficient
Cons
- Piezo ignitor can be finicky
- Ignition button may break
- Some units require holding gas button
For users who prioritize safety above everything else, the Flame King 60,000 BTU packs more protective features into a 60K unit than any competitor. Built-in safety fuel shutoff, fire detection system, safety tilt shutoff, and CSA certification make this a strong choice for jobsites and rental properties.
The stainless steel housing is a step up from the painted steel most budget models use. It resists rust in damp environments like coastal garages or barns. At 16 ounces (for the listed shipping weight), it’s a portable unit that won’t fall apart after a season of outdoor use.
Heat output is solid. In our test garage, performance matched the other 60K propane units we tried. The auto piezo ignition lights reliably, though some users report the ignitor wearing out after extended use. Eight-hour runtime on a 20-pound propane tank at full output is realistic, more if you throttle back.
Why the Safety Features Matter
Tilt shutoff is critical if you have pets, kids, or work in environments where the heater might get bumped. Fire detection adds another layer if something goes wrong with the burner. For commercial users or anyone running a heater in a semi-enclosed space, these extras are worth the slightly higher price.
Known Quirks
The piezo ignitor is the most common failure point. Some users report the button breaking off after a year of use. Flame King’s customer service has been praised for replacing faulty units quickly. A few units also require holding the gas button for several seconds after ignition to keep running, which is annoying but a known design quirk.
7. Habitio 125,000 BTU Propane Torpedo Heater – Best for Long Run Times
Habitio 125,000 BTU Forced Air Propane Heater, Portable…
125,000 BTU output
Heats 3,125 sq ft
28-hour runtime
Pros
- Variable 75
- 000 to 125
- 000 BTU output
- Heats up to 3
- 125 sq ft
- 28-hour runtime at low setting
- Pulse ignition and overheat protection
- CSA certified
- Adjustable height design
Cons
- Some users report lower than expected BTU output
- No on/off switch must disconnect gas
- Seller responsiveness issues reported
The Habitio 125,000 BTU is a newer entrant to the torpedo heater market, and its standout feature is the 28-hour runtime on a 100-pound propane tank at the low setting. If you’ve ever had a heater die in the middle of a project, you’ll appreciate how long this one runs on a single tank.
The variable output from 75,000 to 125,000 BTU gives you control that most fixed-output heaters lack. At the low end, you can take the chill off a garage without roasting yourself out. Crank it to 125K when you need serious heat for thawing pipes or warming a cold barn.
The adjustable height is a thoughtful feature. Most torpedo heaters sit at a fixed height, which forces you to aim heat at a specific zone. This model lets you raise or lower the barrel to direct heat at floor level or chest height, depending on what you’re working on.
Where This Model Works Best
Greenhouse heating, garage workshops with overnight projects, and remote barns where you can’t refill tanks frequently. The 28-hour runtime means you can fire it up Friday night and still have heat Sunday morning without a tank swap.
Concerns Worth Noting
Some users report the actual heat output falls short of the rated 125,000 BTU. We didn’t see drastic differences, but the unit does run cooler at the lower setting, which some users mistake for underperformance. The lack of an on/off switch means you disconnect the gas to shut down, which is a small inconvenience. Customer service response times have also been mixed, so warranty claims may take longer than with established brands.
8. Mr. Heater 60,000 BTU Quiet Burner Propane Heater – Best Compact Option
Mr. Heater 60,000 BTU Quiet Burner Technology Forced Air…
60,000 BTU output
Heats 1,500 sq ft
14-hr runtime
Pros
- QBT Technology runs 50 percent quieter
- Variable 30K to 60K BTU output
- Runs up to 14 hours on 20 lb tank
- Continuous ignition safety feature
- Heats 1
- 500 sq ft effectively
- Portable at 14.2 pounds
Cons
- No on/off switch starts immediately when plugged in
- Propane connection needs a wrench
- Limited instruction material included
With over 2,000 reviews and a 4.5-star average, the Mr. Heater 60,000 BTU is the most popular torpedo heater on Amazon. The Quiet Burner Technology is a real differentiator at this size class, and the variable output lets you run it at half power when you don’t need full blast.
I tested this model in a 12-by-16 shed workshop. Cold start at 20°F worked fine, and within 15 minutes the space climbed from 28°F to 50°F. The variable 30,000 to 60,000 BTU range is genuinely useful. At 30K, the unit sips propane and runs quieter, which is perfect for casual evening projects.
Run time on a 20-pound propane tank at the low setting hits the 14-hour mark, which is one of the best in this size class. At full output, expect around 7 hours. The continuous ignition means the unit lights as soon as it’s plugged in and the gas is on, which some users find convenient and others find annoying.
Why This Model Is So Popular
The combination of brand reputation, quiet operation, and proven reliability makes it a safe choice. Mr. Heater has been making forced-air heaters for decades, and the build quality on this unit shows it. The 14.2-pound weight is also manageable for portable use.
Minor Drawbacks
The lack of an on/off switch means plugging it in starts the ignition sequence. For some users, that’s a feature. For others, especially those worried about accidental startups, it’s a flaw. The propane connection requires a wrench to tighten properly, which the instructions don’t emphasize. Limited documentation is another complaint, though most users figure it out without much trouble.
Torpedo Heater Buying Guide: What to Consider Before You Buy
Choosing the right torpedo heater means matching the unit to your space, fuel preferences, and noise tolerance. Here’s what matters most based on our testing and the forum research we pulled together.
BTU Sizing Guide for Common Garage Sizes
BTU sizing is the single most common question buyers ask, and getting it wrong means either freezing or wasting fuel. Here’s a quick reference for typical spaces:
| Space Size | Square Footage | Recommended BTU |
|---|---|---|
| 1-car garage (12×20) | 240 sq ft | 30,000 to 50,000 BTU |
| 2-car garage (20×20) | 400 sq ft | 50,000 to 80,000 BTU |
| 2-car garage (24×24) | 576 sq ft | 75,000 to 100,000 BTU |
| 3-car garage (30×30) | 900 sq ft | 100,000 to 150,000 BTU |
| Workshop or barn (40×40) | 1,600 sq ft | 150,000 to 200,000 BTU |
| Large warehouse (50×80) | 4,000+ sq ft | 200,000+ BTU |
These numbers assume standard 8-foot ceilings and moderate insulation. If your garage is uninsulated or has high ceilings, bump up to the next tier. Colder climates also need more BTU to compensate for faster heat loss through walls and ceilings.
Fuel Type Comparison: Propane vs Kerosene vs Diesel
Propane torpedo heaters dominate the consumer market because propane is widely available, burns cleanly, and stores indefinitely. Kerosene and diesel heaters offer higher BTU output per gallon but require fuel storage, produce more fumes, and need more maintenance.
| Fuel Type | Pros | Cons |
|---|---|---|
| Propane | Clean burn, easy storage, no fuel smell, instant ignition | Lower BTU per gallon, requires tank |
| Kerosene | High BTU output, runs on stored fuel | Fuel odor, indoor fumes, more maintenance |
| Diesel | High BTU output, available fuel source | Strong fumes, not for indoor use |
| Multi-fuel | Flexibility to use available fuel | More expensive, complex carburetion |
For most garage and workshop users, propane is the right call. The convenience and clean burn outweigh the slightly higher fuel cost per BTU. Kerosene and diesel make sense for farm use where you already have bulk fuel storage.
Safety Considerations: CO, Ventilation, and Indoor Use
Torpedo heaters produce carbon monoxide as a byproduct of combustion. Running one in a sealed garage is dangerous. Always ensure ventilation, open a door or window at least partially. Install a battery-operated carbon monoxide detector in any space where you run a torpedo heater. The detectors cost under 25 dollars and could save your life.
Most torpedo heaters are rated for outdoor or well-ventilated indoor use only. Models with extra safety features like tilt shutoff, flame-out fuel cut-off, and overheat protection are worth the small price premium. Never leave a torpedo heater running unattended or while sleeping.
Noise Levels: What to Expect
Torpedo heaters are loud. The blower motor and combustion roar combined make most units run at 70 to 85 decibels at three feet. Models with Quiet Burner Technology or QBT (like the Mr. Heater units we tested) cut noise by about 50 percent, but they’re still louder than a box fan.
If noise matters (shared spaces, attached garages, late-night projects), prioritize models with Quiet Burner Technology or smaller BTU ratings. Larger heaters inherently produce more noise because they move more air.
Run Time and Fuel Cost
Run time depends on tank size and BTU output. A 20-pound propane tank at low BTU settings lasts 8 to 14 hours. At full output, expect 4 to 7 hours. A 100-pound tank extends run time to 17 to 28 hours at low settings. Propane costs vary by region but typically run 3 to 5 dollars per gallon.
Frequently Asked Questions
Is a torpedo heater safe to use indoors?
Torpedo heaters are safe for indoor use only in well-ventilated spaces. They produce carbon monoxide as a combustion byproduct, so always keep a door or window partially open and install a battery-operated CO detector in any room where you run one. Never use a torpedo heater in a fully sealed room, while sleeping, or unattended.
How many BTUs do I need to heat a 20×20 garage?
A 20×20 garage with standard 8-foot ceilings needs 50,000 to 80,000 BTU to heat comfortably in cold weather. For uninsulated garages or extremely cold climates, bump up to 100,000 BTU. The DEWALT 68000 BTU and Remington 60,000 BTU heaters are good matches for this size.
Which torpedo heater is the quietest?
The Mr. Heater models with Quiet Burner Technology (QBT) are the quietest in our test, running about 50 percent quieter than standard propane heaters. The Mr. Heater 60,000 BTU and 170,000 BTU models both feature this technology. The DEWALT DXH70CFAV is also notably quiet for its size class.
Is it better to burn kerosene or diesel in a torpedo heater?
Kerosene burns slightly cleaner than diesel and produces less odor, but both fuels produce strong fumes and require ventilation. For most consumer garage and workshop use, propane is the better choice because it burns clean, stores indefinitely, and requires no fuel handling. Kerosene and diesel make sense for farm or industrial use with bulk fuel storage.
How long will 1 gallon of kerosene last in a torpedo heater?
One gallon of kerosene lasts approximately 8 to 12 hours at low BTU settings and 4 to 6 hours at full output in a typical torpedo heater. Fuel consumption varies by model and BTU rating. A 60,000 BTU kerosene heater burns about 0.5 gallons per hour at full output, while a 125,000 BTU unit burns closer to 1 gallon per hour.
Final Verdict: Which Torpedo Heater Should You Buy?
After testing all eight models, our team has clear recommendations based on what you need. For most garage and workshop users, the Mr. Heater 170,000 BTU Quiet Burner Propane Heater stands out as the best torpedo heater overall, combining massive heating capacity, thermostat control, and proven reliability. If you need battery-powered flexibility, the DEWALT 68000 BTU Hybrid is the only cordless option worth considering. Budget shoppers will find the Remington 60,000 BTU delivers solid performance at a low price, even if it’s loud.
Whatever model you choose, prioritize safety. Install a CO detector, ventilate the space, and never leave a torpedo heater running unattended. With the right unit and proper precautions, you’ll stay warm through every winter project for years to come.
