

🔥 Heat smarter, not harder — your instant hot water sidekick!
The GESAIL 1000W Electric Immersion Heater delivers rapid heating for up to 5 gallons of water in just 10 minutes. Featuring a built-in thermostat with auto shutoff at 180°F, it ensures safe, energy-efficient operation. Its 304 stainless steel guard offers durable, rust-resistant protection, making it ideal for diverse uses from home to camping. Lightweight and easy to use, this submersible heater plugs into any grounded outlet for instant warmth wherever you need it.










| ASIN | B07J9NCRC4 |
| Best Sellers Rank | #44,800 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #122 in Water Heaters & Parts |
| Brand | GESAIL |
| Color | Silver |
| Date First Available | October 10, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Length | 14.7 Inches |
| Item Weight | 13.4 ounces |
| Item model number | 05-742G |
| Manufacturer | Gesail |
| Material | Stainless Steel |
| UPC | 616010850506 |
| Voltage | 120 Volts |
| Wattage | 1000 watts |
M**N
Great in my ceramics studio
I use this little guy in my ceramics studio to heat the water in a parts machine washer that I use as a clay sink. It heats up the water quickly and and doesn't seem to be bothered by the clay sediment. This keeps me from having to stick my hands in and wash my clay tools with gross cold water. Not the advertised use for this heater, but it works great. I unplug it when not in use.
K**E
If you camp this is great if you have a generator.
This heater has been by the best one we have used. Easy to use. We have used other, this one is the best. Has better heating capacities. Easy to throw into camping gear for shower. The coded length is pretty long making it easier to use. It was a little more than the others we have but definitely worth it, great value for the money.
K**E
Great quality gets very hot!!!!
Works amazing almost too good. It will straight boil a 5 gallon bucket of water in ten min ornless
K**.
Does not heat as fast as claims
This does what I want...warm up water for jacuzzi (in a bucket) bathtub. I have a small water heater and it takes forever to fill with hot water. This is a nice alternative until we can get a bigger water heater. However, it takes approximately 10 minutes for every gallon to heat to boiling. All these other claims like 20 minutes for 5 gallons seems way off to me. This is the only reason I removed a star.
M**Z
Disappointed ☹️
I had read that you could heat a small swimming pool or as some say paddle pool with this heater, it even showed the pool I was trying to heat in the advertising. Ok, so my grandkids were not fond of playing as swimming in this size pool with 4 kids is impossible in cold water. One thing I had read was to use black garbage bags on the surface of the water 💦 when the sun was shining. I tried that, and it did warm it up some, but only on the surface. Once the water was stirred up it was cold 🥶 again. So back online for more suggestions I went. This heater was rated well for heating up a pool so I tried it, it wasn’t really expensive. We got 2 saw horses and a stick and laid it across the middle of the pool. It did start to heat it put kept shutting off. We think 🤔 it wasn’t meant to be used with an extension cord. I then tried it in a bucket 🪣 and plugged it into an outdoor outlet and it did heat up the water in the 5 gallon bucket, but not in minutes. So what to do. I suppose maybe next year I could use the black garbage bags and the heater with multiple buckets and see if that doesn’t ruin my back as I am 61 years old grandma, trying to make summer fun for the grandkids. Or maybe 🤔 they will have to toughen up and swim in the cold water like I did when I had swimmingly lessons at our town pond in central Wisconsin at the end of May right after the ice melted. We would come out of the water blue, but I got as far as Junior Life Saving and I could save someone that was drowning if I had to. I think it would work if maybe I invest in a better extension cord or put the pool on my deck that is the same size as the pool because that’s where the outlet is or maybe just take them to the lake or local swimming pool when this pandemic is done, when ever that will be. Happy 😃 paddling.
A**R
The 1000w Unit Heats 3 gallons in 15 minutes
I have a 20 foot motorhome that has a shower; however, to use the hot water I need to run my gas generator. To circumvent this, I have an Ecoflow delta that powers all of my electronics, and I can use it to heat my shower water. I purchased the 1000 watt version of this unit and it heated 3 gallons of water in 15 minutes while it was 60 degrees in my RV. It starts off at 1012 watts but it drops down at times to around 575 watts. Prior to this, I was using an electric hot plate where I heated the same amount water and it took 60 minutes. The verdict is, it does the job but certainly in a longer timeframe than expected. Considering the price and my previous alternatives, I recommend this unit.
N**E
Best item
30 min in home depot bucket to hot to put my feet in.wow Only used 1 time but wow great job.
P**N
Buen producto
N**N
Works great, been using this for two winters heating water in a 5 gallon pail, ice cold to shower temp in five minutes
F**A
I put it into the hot tub last winter to power up the hot tub when it turn it on. Helps the hot tub get hot faster. Does its job perfectly, and seems to be of very good quality. I recommend this product.
Y**S
Unit work great for about a week then rusted through at weld joints and now trips gfi. Returned, do not recommend. Found higher quality one with thermostat control that so far is working great the last two weeks.
R**H
This little heater is super handy. Although it takes some time to heat, it 's very useful when it’s cold out. It’s safe to use : turns itself off when it gets too hot and can be plugged into regular outlets. You can use it almost anywhere, like in buckets or tubs. It’s perfect for camping, working outside, or anytime you need hot water outdoors. Simple to use: just dunk it in water and plug it in.
M**X
Utilisé pour réchauffer l'eau en hiver pour laver lea voitures. Fonxtionne tres bien pour moi
Trustpilot
2 weeks ago
2 days ago