Immersion Water Heater,with 304 Stainless Steel Cover Intelligent Temperature Control and UL Certification Portable Bucket Heater Heat 5 Gallons of Water in Minutes

Works exactly as intended. In an emergancy situation its proven a great way to have a semblance of normalcy. Warm water for dishes in about 5 min. And a 5 gallon bucket for a shower in 15. Draws roughly as much power as electric cooking device like an air fryer. The thermostat worked well until I dropped it in the water and its never been the same. It also doesn't have a way to turn it off unless you just remove the batteries. But its not hard to check the water temp safley without it.Despite the thermometer problems, I'd still gove it a 5 star because the actual main device works super well. And the shroud keeps it safe to handle even directly after heating a large amount of water.

I used this to heat up a 50 Gallon tank that I had connected to a pressure pump to a pop up shower and it was amazing. Heated 50 degree water to 100 degrees in about 2 hours. we got 5 showers out of the 50 Gallons along with doing some dishes and washing our hands. we did get the water up to 115 degrees but unplugged it because we did not need it any hotter than that.. 100% happy.We did make sure that the heater was 100% under water and before we would use the water we would unplug the heater until we filled the tank back up.

*edit from previous review. Company was excellent and reached out to me to make things better. They shipped me a brand new unit for free and I said I would honestly review them better if all was well. Sorry folks, used in the hot tub several times with no issue but left it in there overnight last week and reached in to grab my filter to change it and got a nice jolt of 120v up my arm. The new one, like the other one, apparently cannot be used at high temp (its own setting) without shorting out or losing it's seal, not sure which one but it is an open current right in the water. I had a temp monitor in there to track the temp and it reached close to 130 degrees overnight in a 5 person inflatable tub. I know, I should not have left it on overnight but if you leave your pool accessories on overnight you don't usually worry about them electrocuting you the next day when you take a dip.I do not say this lightly, do not use this with humans or animals in or in contact with the water, you can be electrocuted. May not kill you but I am not sure who wants to find out. I certainly would not want to be chest deep in the water and have it zap me.Original review below------I have been using this device for a couple weeks to enhance the temp of an outdoor inflatable hot tub. I would run this for many hours at a time. The other day when I was closing up the tub, I plugged the unit in and I was replacing the cover when I touched the water and felt a jolt. I was barefoot at the time but there should not be an open current from the unit in the tub. It was not a deadly jolt so I wanted to ensure this was what was doing it and I unplugged the unit and touched the water, no issue. I carefully plugged the unit back in and touched the water again, no doubt, there was current running though it. Not enough to kill me but not gonna experiment and find out. It is being returned and I will not get the same brand again. For anyone reading this that might use this for a tub or kiddie pool, do NOT take the chance of having your kids, pets, or livestock near the water when this is plugged in. Mine might be a single bad unit but I doubt anyone reading this wants to find out there hard way that I am not alone.

Bought it for a trip to Guatemala where they don't have hot water for showering and it was a lofe saver at least for me how loves and take hot showers for granted.. great product easy to use..

TLDRIf you buy this heater, here's the advice from our test group:1. MOUNT the heater cylinder (e.g. with cable ties) to a yardstick or similar stick (nonconductive wood!) so you can easily dip the heater into a bucket of water without touching anything electrical.Note: we also attached the temperature sensor + wire + display to this same stick (on the other side): it's convenient to be able to stir the water to get a more accurate temp reading without interrupting the heating.2. ADD a long extension cord (e.g. 8-foot plus) to relocate the main electrical connection to a safe distance that is well away from your "wet" working area.3. TAPE the power connection (e.g. with electrical tape) where you plug the heater into the extension cord in the "wet" area. DON'T use the heater's short cord to turn the heater on/off (unsafe where it's wet)!4. ADD an On/Off switch at the distant end of the power extension cord. Only touch electrical components that are DRY and in a dry area. Once you turn the heater on, you only handle the wooden stick, then you go switch it off and let it cool somewhere safe (as instructed).5. USE a large (5-gal) plastic container/bucket for heating water and avoid moving that around. Use a separate, smaller cup/jug/etc (e.g. a clean yogurt container) for dipping and/or transferring hot water for use elsewhere (e.g. into a camping shower's tank). If adjusting for comfortable temps, it's handy to add half a Liter/Quart of heated water at a time until the temp is rightSAFETYYOUR MAIN CONCERN should be ELECTRICAL safety. You're putting a (semi-enclosed but) exposed heating element with live current running through it into a Known Electrical Conductor (the water). What could possibly go wrong? Case in point: a young volunteer — before reading the (tiny!) instruction booklet — was starting to set up our first test in a large galvanized steel bucket: BUT! You should NOT use this in a metal container: it's also a conductor!This is definitely NOT for young kids and should NOT be left unattended with kids nearby.You also should not dip your hand into the water while the heater is running, which kids will do. You know they will.One of our oldest volunteers is a retired electrical engineer: he said this product made him a bit nervous because of the "possibility of electrocution". But he also said the PROBABILITY of electrocution is "very low" when the product is used by a "reasonably careful ADULT". Under the right conditions it is "reasonably safe". See TLDR advice above.HEATINGThe first step is finding (or knowing) the target temperature for your needs so you only heat water as long as is necessary. You might need a lot more heating time to get very hot water for washing a dirty truck/etc). We are heating 5-gals of water for a camping shower in a plastic bucket. YMMV.Turns out that putting live electrical current into water to heat it works pretty well: our first test heated the 5-gal water at ~70°F (the outside air temp) to 100°F in just under 10 minutes.Happily, it comes with an (unadorned) digital thermometer: a sensor-tipped ~18" wire with a tiny (under 1 cubic inch) rectangular digital display. When you're satisfied with the water temp you can unplug the heater Note the "unplug" part: the cord running from the heating element does NOT have the pictured bump (a switch/indicator), only a three-prong plug at the end of the roughly 2m/6ft cord. If you want a switch (to make operation slightly easier and safer (by staying away from direct contact), then add your own 3-prong switch for a few more dollars as we did.Our portable shower's max allowed temp is 122°F (crazy hot for bathing), so we did not bother testing how long to bring water up to 165°F (the theoretical max for the heater). After about 15 minutes, we stopped it at ~106°F (which also ironically turned out to be WAY too hot to shower with). Second test, we heated 78°F water to 95°F in under 5 minutes, which was almost the 'Goldilocks' temp-to-time ratio. If you're heating a big 300-gal+ tub, you probably just need to leave this in there for a while (hour?) and keep an eye on the temperature.SUMMARYIf the pictured switch had actually been included, and the product design did anything more about isolating the User from electrical danger, we would give this heater ***** five stars.Next, we want a way to heat ~15 gallons of water from 200W of solar… anyone else?

this worked really well when i went to live abroad where they didnt have hot water. it took abour 15-20 min to heat up a bucket of cold water to its max temp which is burning hot, u have to be careful and dilute it with cold water to achieve that perfect temp for a shower.