Thermacell creates a repellent “zone” by heating a mat treated with a synthetic pyrethroid, and in still air it genuinely works — a roughly 15-foot bubble of protection without sprays on your skin. The honest limitation is wind: a breeze blows the zone away, so it shines on calm evenings and struggles on gusty ones.
Key Takeaways
- Creates a real ~15-foot repellent zone in still air — no skin spray needed.
- Wind is its weakness — a breeze disperses the protective zone.
- Give it 10–15 minutes to build the zone before you need it.
- The biggest win is free: dump standing water where mosquitoes breed. No product beats removing their nursery — see every way to get rid of mosquitoes.
1. Thermacell Patio Shield
The Patio Shield has been heralded by other pest control experts as one of the best backyard mosquito repellents.
We can’t disagree.
At a price comparable to a large citronella candle, the Patio Shield is claimed by Thermacell to by 6 times more effective that 42 citronella candles (42! That’s a lot of candles!).
Remember that you will have to replace the fuel cartridge and repellent mats, which make the Patio Shield work.
USER REVIEW: “I live in Jersey and have a small pond in my backyard - so a ton of skeeters. Set up 2 of these on my porch and so far have only been bitten once this summer.”
Each fuel cartridge lasts 12 hours and each mat lasts 4 hours.
What 633 verified buyers say
What buyers love
- Highly effective mosquito repellent
- No candles or flames required
- DEET-free and scent-free
Common complaints
- May not be suitable for windy areas
- Fuel and mats may not last long
“Tried this out on the deck for the first time when neighbors came over and it really seemed to work! None of us were bit by mosquitoes when we were in the range of the unit. As soon as we stepped away from the deck in the yard - instant bites!”— 5★, Verified Purchase
“I was super skeptical at first but i hate the smell of the candles to keep mosquitoes away but this thing is AWESOME!!! Works great and no open flames!”— 5★, Verified Purchase
Based on our analysis of verified customer reviews — how we research.
Get the Thermacell Patio Shield on Amazon or Walmart or Home Depot or Lowe's or Target or heb.com or mysmithland.com or samsclub.com or rei.com or Chewy or gosupps.com or bigronline.com
2. Thermacell BackPacker
If you often go fishing, or camping, the Backpacker is a great mobile mosquito solution.
While it takes up only a small amount of space in your gear, like its big brothers, it creates a 15 foot shield of mosquito protection.
A nice added feature is that it is effective at an elevation of 7,000 feet.
Provides 90 hours of repellency off of a 4 oz. gas canister that you may already have in your camping gear.
What 475 verified buyers say
What buyers love
- Cost-effective
- Easy to use
- Works better than other Thermacell products
Common complaints
- Refills are expensive
- Potential cancer treatment is expensive
“Super awesome and easy to use works better than the other thermacell products. It’s cheaper in the long run since you can use the camping butane can’s.”— 5★, Verified Purchase
“This works incredibly well. I was going through the tiny plastic canister of fuel daily. I used this all summer and haven’t needed to replace the fuel cylinder yet.”— 5★, Verified Purchase
Based on our analysis of verified customer reviews — how we research.
Get the Thermacell BackPacker on Amazon or Walmart or Home Depot or rei.com or outdooradventureni.com or benchmarkoutfitter.com or billandpauls.com or heinnie.com or militarykit.com or epikmoto.com or basspro.com or cpc.farnell.com or kitchenwarewt.com or bivouacannarbor.com or boundarywaterscatalog.com or backcountrygear.com or kogan.com or climbers-shop.com
3. Thermacell Portable Mosquito Repeller
The Portable Mosquito Repeller uses the same technology found in other Thermacell products, just in a smaller size.
Like the Backpacker, the Portable Mosquito Repeller is a great option for those that enjoy outdoor activities like hiking, camping, boating, and hunting.
Weighing only 6.4 ounces, this option provides a 15 foot mosquito free zone for 12 hours.
It is offered in four colors: black, hi vis, olive green, and orange/grey.
Pros
- No mosquitoes to clean up after operation.
- DEET-free & odor-free.
- 15 feet zone of protection.
- Fuel cartridge lasts up to 12 hours.
- Affordable cartridge and mat refills.
Cons
- Requires cartridge and mat replacements.
- Cannot bring on airplane due to fuel cartridge.
- Not as effective at higher altitudes.
- Not recommended for indoor use.
How It Works
Thermacell mosquito repellents use heat to create an invisible, scent-free, zone of protection. They are powered by a small activated cartridge which provides cordless, portable heat, directed to a metal grill. Over this grill, a small mat imbued with a repellent is inserted, which disperses the repellent from the mat into the air, when heat is applied.
Thermacell comes in two power varieties:
- Fuel-Powered
- Battery-Powered
Let’s take a look at the advantages & disadvantages of both technologies.
What 1,938 verified buyers say
What buyers love
- Works well once it's going to keep mosquitos away
- Easy to use
- Scent-free
Common complaints
- Sometimes if they're really bad this only slows them down and doesn't keep them totally away until there's a lot of the scent in the air
- Have to remember to turn it on 15min before you actually want to go outside and use it
“It works really well, the only downside is that you have to remember to turn it on 15min before you actually want to go outside and use it.”— 4★, Verified Purchase
“I was introduced to this product by my father in law. I have bought two and am very pleased. It is easy to use and I don’t not notice any scent. Refills are easily purchased and it is easy to replace used scent cards and easy to see when they need replaced.”— 5★, Verified Purchase
Based on our analysis of verified customer reviews — how we research.
Get the Thermacell Portable Mosquito Repeller on Amazon or Walmart or Home Depot or Chewy or meijer.com or basspro.com or gear-up.com or cabelas.com or diycontrols.com or outdooradventureni.com or backcountryandbeyond.com or rei.com or mikesarchery.com or northwoodsoutlet.com or gemplers.com or alflahertys.com or hansenspoolandspa.com or farmandfleet.com or scheels.com or dancessportinggoods.com or larcherot.com
4. Fuel Powered Thermal Repellents
Fuel powered repellent uses a specific type of mat to repel mosquitoes. The mat contains 21.97% of Allethrin and 78.03% of other ingredients. They also contain petroleum distillates.
If you’re fond of hunting, camping or just spending a lot of time outdoors in the fresh air, but hate dealing with mosquitoes, you can use a Thermacell fuel-powered mosquito repellent.
These models work by using heat activated repellent mats to create a zone which is scent-free. This zone keeps mosquitoes away, however, you need to wait at least for 10-15 minutes for it to fully activate and create a 15 foot zone around where you’re sitting. The drawbacks of this repellent is that on regular use it can get pricey because of fuel-cartridge and mat refills.
Get the Fuel Powered Thermal Repellents on Amazon or farmandfleet.com or Walmart or pro.libertymountain.com or Home Depot
5. Battery Powered Thermal Repellents
Our take
Across 633 verified reviews (3.35★, 56% rated 4★+), buyers most often praise highly effective mosquito repellent and no candles or flames required. The recurring complaint: may not be suitable for windy areas, and fuel and mats may not last long.
The Thermacell Radius Zone Mosquito Repellent, uses a lithium-ion battery instead of fuel-cartridges.
The repellent does need to be intermittently refilled. The refill contains Metofluthrin as an active ingredient to create a mosquito free zone. Two types of refills are available, one works for 12 hours while the other one lasts 40 hours.
The included lithium batters lasts 6 hours in a single charge. Apart from everything else, it is air travel friendly. While Thermacell’s fuel cartridge models cannot be brought on a plane, the Radius Zone battery is acceptable. Also, it was voted as Grand Award Winner in Recreation for Popular Science’s 2018 BOWN Award.
Thermacell’s fuel and battery mosquito repellents are registered with the United States Environmental Protection Agency (US EPA). Thermacell over the past 20 years has protected millions of people from the harmful effects of insects.
What 928 verified buyers say
What buyers love
- Easy to use
- DEET free
- Long lasting
Common complaints
- Sensitive to breezes
- Expensive refills
“I highly endorse this product for repelling mosqitoes. I always get bitten when outside after dark, since I use Thermacell Mosquito Repellent Radius Zone I have not suffered with any bites.5 stars”— 5★, Verified Purchase
“Use this on my balcony and patio it's great when it works. Takes some time for it to repel. switching out refills is easy.”— 4★, Verified Purchase
Based on our analysis of verified customer reviews — how we research.
Get the Battery Powered Thermal Repellents on Amazon or Walmart or Lowe's or Home Depot or gosupps.com or forestry-suppliers.com or cabelas.com or iandmelectric.com or ruixinfenche.com or basspro.com or fishermans-marine.com or mackspw.com or backpacker.com
Customers Reviews - How’s It Stack Up?
We scoured online reviews and ran the Thermacell products by our readers.
The general consensus?
While it does cost some extra money to refill the cartridges and mats, most reviewers have found Thermacell mosquito repellents to be largely effective at keeping away mosquitoes. Of course, no mosquito prevention technique is perfect, but most reviewers have been happy with the results.
The biggest perk?
Fewer mosquitoes with no sticky sprays or creams.
Some people did report that when the repellent is first activated it gives off a very slight odor.
How To Use The Fuel-Powered Thermacell Mosquito Repellent?
- Remove one Thermacell Repellent Mat out from the packaging.
- Make sure the Thermacell Repellent is in the “OFF” position. Insert the mat in the appliance grill.
- Remove the appliance cover.
- Remove the butane cartridge cap.
- Insert and rotate the butane cartridge in a clockwise direction to place it properly in the appliance.
- Turn the “ON/OFF” button to the ON position to let the butane gas to flow.
- Wait for 5-10 seconds and then press the start button 3-5 times in rapid successions.
- To know if it's working, check for the glowing LED light at the top of the appliance.
How To Use The Battery-Powered Thermacell Mosquito Repellent?
- Remove the refill from its packaging.
- Make sure the repellent is in the “OFF” position and then insert the refill in it.
- Check and attach the refill securely.
- Press the ON button to start the repellent.
- To know if it’s working check for the glowing light.
The one step that matters most: dump the standing water
No spray, zapper, or candle outperforms removing where mosquitoes breed. Females lay eggs in standing water, and larvae mature to biting adults in about a week, so empty or refresh anything that holds water — buckets, plant saucers, gutters, birdbaths, tarps, toys — every few days (CDC: Mosquito Control at Home). Pair that with an EPA-registered repellent for yourself and targeted control for the yard. The full plan is in every way to get rid of mosquitoes.
Frequently Asked Questions
Can I use Thermacell Mosquito Repellent in Rain?
No, it is not recommended to use in the rain. When repellent mats and the appliance get exposed to rain they may not work effectively.
Can Thermacell Mosquito Repellents be shipped outside the US?
No, as of now they are only shipped within the U.S.
Can I take Thermacell Mosquito Repellent on a plane?
The fuel-powered repellent cannot be taken on a plane. However, the battery-powered Radius Zone can be taken on a plane.
How long does it take to activate and get fully functional?
It takes approximately 10-15 minutes to work at maximum capacity.
Any doubts? Drop in the comments below.