240V | 3500W Portable Immersion Water Heater with Thermostat & GFCI Protection - Bathtubs Heaters - Submersible Pool Heater for Inflatable, Stock Tank, Baptistry, Baptismal, Pools Warmer
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To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Color: Orange 3500W
Features
- All-in-One Immersion Water Heater with GFCI Protection: Portable 19.7" design fits tight spaces. heats small pools (including above-ground/in-ground pools, inflatable pools, Small swimming pool) bucket, Bathtub / Hot Tub, spas, baptistries & livestock tanks,(Professional grounding required for metal containers).
- GFCI / overload protection with Auto-reset function : (1): 24/7 GFCI monitoring, (2): 0.03s leakage cutoff, (3) Auto-reset function (no manual restart), (4) overload protection.
- Durable 316 Stainless Steel Seamless 316L (16W/mK) delivers 30%+ higher efficiency than conventional heaters, tubing resists saltwater /chlorine/corrosion, leak prevention.
- Precision Temp Control | 0.5F Accuracy: Auto-hold thermostat (44-212F range) pauses at target temp and auto-resumes after cooling, No manual reset needed. Ideal for: Spas (98-102F), Pools (77F), Freeze Protection (45F+).
- Critical Safety : 1. ALWAYS SUBMERGE before power-on to prevent overheating. 2. Surface gets hot! Cool before handling. 3. Use dedicated outlet (no shared cords). 4. Keep 1m from flammables. Verify voltage match.
Material: 316 Stainless Steel
Voltage: 240 Volts
Brand: JNICEANTAI
Color: Orange 3500W
Wattage: 3500 watts
Material: 316 Stainless Steel
Voltage: 240 Volts
Brand: JNICEANTAI
Color: Orange 3500W
Wattage: 3500 watts
Manufacturer: JNICEANTAI
Package Dimensions: 17.44 x 13.46 x 2.17 inches
Item Weight: 4.73 pounds
Item model number: SUS 316-3500W
Frequently asked questions
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Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Orange 3500W
The media could not be loaded. I live in upstate NY. We have decent summers but most evenings we drop down to mid 60° to high 50's. I purchased this for my inflatable hot tub. The hot tub heater works, but about 10-15 minutes later the temperature drops 6°. I've used the heater every night and my hot tub stays at 104° with this heater! This is the best investment I've made all summer!
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Reviewed in the United States on August 7, 2025 by irene anderson irene anderson
Color: Orange 3500W
I recieved mine Oct 11th. On Dec 18th it stopped lighting up and quit working. The information that comes with the product offers no contact information for a warrenty claim. Stay away from this company unless you have lots of time to waste talking to Amazon support and hope to convince them to warrenty the product
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Reviewed in the United States on December 20, 2025 by Eliminate Them Now
Worked exactly as stated and heats pretty quickly - we use it for a 6 foot adult inflatable pool. I tried two others that were useless - worth the extra $.
Reviewed in the United States on August 30, 2025 by Tigerlilly
I have an above ground 12x18 foot pool. It is the end of September in Kansas and I am trying to keep my pool up as long as possible. I tried another heater, and it sucked and lasted 2 days. This one gets much hotter and has warmed my pool from 77 to 87 degrees (with the addition of a 16 mil thick solar cover.) I am so happy with the quality, effectiveness and price!
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Reviewed in the United States on September 15, 2024 by Sarah
Heater works great for reheating my inflatable hot tub. Unfortunately the factory heater stopped working. Perfect replacement. Better than factory. It will get unbearable hot if you do not use the digital meter/regulator. Would recommend for same issue or similar applications. ⭐️⭐️⭐️⭐️⭐️
Reviewed in the United States on November 10, 2024 by Robert850 Robert850
Color: Orange 3500W
did not heat
Reviewed in the United States on November 15, 2025 by Jonathan
It heated the water in our church baptistery quickly and is so easy to use.
Reviewed in the United States on June 3, 2025 by Angie Meyer
I recently purchased the portable hot tub heater and it's been a game-changer! The heater works flawlessly, and its portable design lets me enjoy a warm hot tub anywhere. Setup was quick, and I love how it maintains perfect temperature—no more chilly dips!
Reviewed in the United States on April 9, 2025 by Thomas Goslawski