Treela 2 Pcs Immersion Water Heaters Portable Electric Submersible Pool/Hot Tub Heater with 304 SS for Bathtub, Bucket, Basin 5 Gallon Water in Minutes(Yellow,1500W)

The plug was hot off the outlet, so this needs a twelve k or ten cage extension cord.

Absolute trash! One worked for about 3 hours, seemed hopeful, stopped working. Used the other thinking maybe I did something incorrectly(not at all the case). Second worked for maybe a day running on a timer as not to overload the device and DEAD. Also, the fact there is no type of indicator light to let you know it's powered or 'running' is a safety hazard as well, because when the worked for the insanely short time they were dangerously hot! Do not buy!!!!!

I have a 1000gal above ground pool (10X7.5X.36).I opted for the 2000w for redundancy.Very basic instructions to follow.* 1 heater per socket. Do not share with any other appliance (LED etc. Are Okay).* Fully submerged.* if using an extension cord. Must be 12G.* Must be unplugged when using pool.I plugged in the 1st one. Let it sit for about 3hrs. Overall temperature went from 76° to 79°.I then plugged it in the second one.After five hours or so, it was above the 86° mark.Woke up in the morning and it was 88°, A little too warm lolTo reach the desired temperature would be dependent on your personal preference.This works very well for the price paid.

Bought to heat a 10ft x 5ft x 2ft inflatable pool. From ice cold well water out of our hose, to appx 90 deg feeing like warm bath water took about 5 hours with 2 heaters. Instructions explicitly state not to use heaters while in pool and use outlets that are on different breakers if using more than 1. Couldn’t run my pellet grill and 1 heater at the same time without tripping the breaker so I’d say that’s accurate. Left both heaters on the bottom of the pool 5+ hours and no damage to pool. Cord attached to heater is only 3 ft, instructions say not to use extension cord but this seems impossible for most applications of this tool. Highly recommend 14 ga or larger cord and as short as possible. Used 16ga orange outdoor rated cord first and it becameUncomfortably hot after only an hour of use, before I upsized.

When working this product heats water just as advertised. I bought the 1500W version and a heavy duty extension cord to avoid tripping circuits. However, it still occasionally will trip the circuit.I bought this as a pair: one works perfectly, the other developed a short circuit after only a few uses. The defective one immediately trips the circuit breaker when plugged into the outlet. I followed instructions and only plugged in the heater when fully submerged. I only used one at a time, so I didn't have too many plugged in to the same circuit. I also use a heavy duty timer at the outlet to make sure the heaters won't be on for too long. But one of the pair still stopped working after a relatively short time. Amazon is shipping a replacement, and I will update the review if there are no problems with the replacement.

Lasted about 2-3 weeks and used 4 times. Now every time you plug them in they trip the breaker and will not stay on.

These two heaters look small and I was doubtful. But I put them in my above-ground swimming pool and they really helped take the chill out. My pool is quite large (16' round), so I didn't expect it to get the water hot. I just needed something to raise the temp several degrees. I kept these plugged in overnight (3 nights) while the pump was running, to help circulate the heat.

Pulls so much power it pops breaker and won't stay on. Total junk.