---
product_id: 93465409
title: "UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker"
price: "฿13070"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/93465409-uceder-hot-tub-lx-h20-rs1-thermostat-110v-2kw-adjustable
store_origin: TH
region: Thailand
---

# 2kW power output 1.5" outlet & 0.35MPa min pressure Adjustable thermostat control UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker

**Price:** ฿13070
**Availability:** ✅ In Stock

## Summary

> 🔥 Elevate your soak game with smart, steady warmth!

## Quick Answers

- **What is this?** UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker
- **How much does it cost?** ฿13070 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/93465409-uceder-hot-tub-lx-h20-rs1-thermostat-110v-2kw-adjustable)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized Water Flow:** Designed for pumps ≥200W to ensure consistent heating.
- • **Powerful 2kW Heating:** Efficiently warms up to 400 gallons of water.
- • **Precision Heat Control:** Adjust temperature easily for your perfect soak.
- • **Pro Installation Ready:** Requires 20A circuit connection for safe, reliable operation.
- • **Durability Meets Design:** Robust build with clear flow direction to avoid installation errors.

## Overview

The UCEDER Hot Tub LX H20-Rs1 is a 110V, 2kW water heater with an adjustable thermostat, engineered for small hot tubs, bathtubs, and underground pools up to 400 gallons. It requires a 20A circuit and a pump of at least 200W to maintain optimal water flow and heating efficiency. Featuring a 1.5" outlet and minimum 0.35MPa pressure, this heater ensures precise temperature control and reliable performance when installed correctly.

## Description

desertcart.com: UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker : Patio, Lawn & Garden

Review: Great for stock tank hot tub - I bought this for my 8' stock tank pool to make it a hot tub during the winter. I read other mixed reviews that had also bought it for converting a stock tank pool to a hot tub. I gave it a try because I didn't want to setup a propane instant hot water tank setup. It did take a couple trips to the local hardware store to get all the proper fittings but I got it all connected and up and running. I did run into the same problem at first of the heater not kicking on so I tried taking the top cover off like others said they did and I tricked the switch to be on. Also I did have to plug it into a 20 amp plug. While I was trying different things, I had changed the filter on the Intex 1500 filter pump and noticed the flow switch was working like it should so I put it back together with no modifications and it works great, I just change the filter every 2 to 3 weeks and have no issues. I did also buy a Bayite temperature controller plug and plugged the filter pump into it on the heat plug and have the temp set to turn off at 100° and have it kick back on at 98°. I did have to change the plug on the Intex filter pump to a non GFI plug because every time the temperature control plug shut off when it reached 100° the GFI plug on the pump would pop off. I have had no issues in 2 months now and am loving it. It did take a few days to get up to temp, I live in the foothills of California and the temp here recently has been in the high 50's to low 60's during the day and mid to high 30's overnight and it keeps it to temp with no problems. I have a blue bubble cover and a black 8' pool cover on it to help keep in the heat.
Review: Small Pools and Waterflow - This thing is great but it’s not made for small pools so you’ll need to be crafty. I have mine connected to a 10x30 pool and is heated to 84-88 degrees. First it’s meant to be hardwired for 20amps but I put a 15amp plug on it which is plugged in to a 15amp GFCI outlet and have not had any power issues. Make sure to put the white wire on the proper side. Examine your outlet if you need to. Next, the PVC couplings, be prepared to spend time finding the parts to connect your pool hoses but it can be done relatively cheap at your hardware store. Also, metal o-ring clamps will help a lot to eliminate any leaks. I upgraded to a stronger pump filter, it’s still not quite enough to trigger the flow lever. Others have added a metal washer to create a bit more surface area but I decided to super glue a lego brick under it which means I have to be very careful and ensure it’s only plugged in when the pump is running otherwise it will pop the heater’s hot circuit (under the little screw cap) and potentially break the unit. This is how I broke my first unit. The most important concept to consider is the relationship between heating your pool and water flow. As water is flowing through, the water is picking up a little bit of heat from the coils each time and then going back in the pool and sharing that little bit of heat with the rest of the pool. The little pump will not move the water fast enough to warm the pool. I upgraded to the 1500 gph and to 1.5” hoses using hose adapters. You also should start with warm water otherwise it’s 2-3 days of running 24 hours to get the pool warm. After it’s warm it needs about 6-8 hours a day to keep it warm and surprisingly I didn’t see a huge difference in my power bill. Last connect to output of the filter pump; after the water has been filtered. No need to get leaves and dirt stuck on the heating element. Good luck.

## Features

- Requires a 20A circuit(Connect 20A adapter or breaker),with 1.5" outlet , min 0.35MPA pressure,suggest work with at least 0.25HP,suitable small bathtub & spa tub /hot tub 2 KW /110V-120V.No plug, just 3 cables,Black Cable is Live,White Cable is Neutral,Green Cable is Grounded.
- We suggest water capacity not more than 400 US gallon,the heater won't work if it exceeds the standard, see the picture 2.
- We suggest the pump not less than 200 wat (3600 L/ h), small pump will cause the heater cannot work,see the picture 3.
- Make sure the mount direction is correct,arrow direction is the water flow direction,wrong direction will not make the heater work. see the picture 4.
- A quick method for detecting heating pipe damage,see the picture 5.
- When the heater doesn't work,use a multimeter to test the 4 points to determine which component is damaged,see the picture 6.
- If have any issues with heater,please take some photo of the using environment,including installation direction,set temperature,pump and water capacity,we will help you troubleshoot.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #117,702 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #127 in Outdoor Heater Replacement Parts |
| Customer Reviews | 3.7 out of 5 stars 689 Reviews |

## Images

![UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker - Image 1](https://m.media-amazon.com/images/I/81XZM5J0etL.jpg)

## Questions & Answers

**Q: Mine leaked electricity into the water   dont buy   they are dangerous!!!!!**
A: Yes it leaked and turned out

**Q: I want to use this on my outdoor spa tub. details and description do not say indoor only, instructions say for indoor use only. can it be used?**
A: I use it on my outdoor lap pool, but obviously it needs to be protected from the elements. If you're in a winter climate, at your own risk I'd say, I shut mine down for the winter...

**Q: Has anybody bought this thing? Is it worth it?**
A: I bought it and installed it on my hot tub. It does what it's supposed to do. That is it adds 2000 watts worth of additional heat to my system. It lowers the amount of propane heat I have to add.

**Q: It's  worth for this product a water pum 220 watts?**
A: this heater is 110V , if you want 220V please contact seller they can offer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for stock tank hot tub
*by N***E on November 29, 2022*

I bought this for my 8' stock tank pool to make it a hot tub during the winter. I read other mixed reviews that had also bought it for converting a stock tank pool to a hot tub. I gave it a try because I didn't want to setup a propane instant hot water tank setup. It did take a couple trips to the local hardware store to get all the proper fittings but I got it all connected and up and running. I did run into the same problem at first of the heater not kicking on so I tried taking the top cover off like others said they did and I tricked the switch to be on. Also I did have to plug it into a 20 amp plug. While I was trying different things, I had changed the filter on the Intex 1500 filter pump and noticed the flow switch was working like it should so I put it back together with no modifications and it works great, I just change the filter every 2 to 3 weeks and have no issues. I did also buy a Bayite temperature controller plug and plugged the filter pump into it on the heat plug and have the temp set to turn off at 100° and have it kick back on at 98°. I did have to change the plug on the Intex filter pump to a non GFI plug because every time the temperature control plug shut off when it reached 100° the GFI plug on the pump would pop off. I have had no issues in 2 months now and am loving it. It did take a few days to get up to temp, I live in the foothills of California and the temp here recently has been in the high 50's to low 60's during the day and mid to high 30's overnight and it keeps it to temp with no problems. I have a blue bubble cover and a black 8' pool cover on it to help keep in the heat.

### ⭐⭐⭐⭐⭐ Small Pools and Waterflow
*by J***Y on July 11, 2020*

This thing is great but it’s not made for small pools so you’ll need to be crafty. I have mine connected to a 10x30 pool and is heated to 84-88 degrees. First it’s meant to be hardwired for 20amps but I put a 15amp plug on it which is plugged in to a 15amp GFCI outlet and have not had any power issues. Make sure to put the white wire on the proper side. Examine your outlet if you need to. Next, the PVC couplings, be prepared to spend time finding the parts to connect your pool hoses but it can be done relatively cheap at your hardware store. Also, metal o-ring clamps will help a lot to eliminate any leaks. I upgraded to a stronger pump filter, it’s still not quite enough to trigger the flow lever. Others have added a metal washer to create a bit more surface area but I decided to super glue a lego brick under it which means I have to be very careful and ensure it’s only plugged in when the pump is running otherwise it will pop the heater’s hot circuit (under the little screw cap) and potentially break the unit. This is how I broke my first unit. The most important concept to consider is the relationship between heating your pool and water flow. As water is flowing through, the water is picking up a little bit of heat from the coils each time and then going back in the pool and sharing that little bit of heat with the rest of the pool. The little pump will not move the water fast enough to warm the pool. I upgraded to the 1500 gph and to 1.5” hoses using hose adapters. You also should start with warm water otherwise it’s 2-3 days of running 24 hours to get the pool warm. After it’s warm it needs about 6-8 hours a day to keep it warm and surprisingly I didn’t see a huge difference in my power bill. Last connect to output of the filter pump; after the water has been filtered. No need to get leaves and dirt stuck on the heating element. Good luck.

### ⭐ A Frustrating Journey: Two Defective Hot Tub Heaters and Disappointing Support
*by K***N on June 5, 2023*

I recently encountered a frustrating issue with a defective hot tub heater and feel compelled to share my experience. Unfortunately, I have already gone through two of these heaters, and both have failed to meet even the most basic expectations. The initial heater I received suffered a catastrophic failure, resulting in the complete meltdown of the top cover. This occurrence was not only a significant safety concern but also a complete disappointment given the short lifespan of the product. Hoping that the second heater would fare better, I reluctantly purchased another one. However, after just a few months of use, it became evident that the heater was not functioning properly. It ceased heating beyond 92 degrees, a significant drop from its advertised capacity of 104 degrees. Concerned about this decline in performance, I promptly reached out to the customer support team for assistance. To my dismay, their response was dishearteningly dismissive. They suggested that the use of chlorine, a standard chemical for hot tub maintenance, may have corroded the heater, leading to its malfunction. I found this perplexing and frustrating, as it seems counterintuitive to advertise a product specifically designed for hot tubs while prohibiting the use of chlorine—a common and necessary chemical for proper maintenance. In an attempt to resolve the issue, the support team forwarded me a form that required me to open up the unit and perform various tests on the cables to assess resistance levels, among other things. However, I firmly believe that it is the responsibility of the manufacturer to ensure the functionality and reliability of their products, especially within the stated warranty period. Asking customers to troubleshoot the unit themselves is both inconvenient and unprofessional, particularly when the product's heating capability deteriorated within a mere few months. I had hoped for a more collaborative approach to finding a solution. Compounding my disappointment, I had taken the precaution of purchasing the Asurion warranty from Amazon, which was bundled with the product. However, when I attempted to make a claim under the warranty, I was informed that the hot tub heater I purchased is not supported by the warranty due to it not being considered a compatible brand. This raises the question of why such a warranty option is even offered if it does not cover products from certain manufacturers. It is deeply frustrating to be denied coverage after taking the initiative to protect my investment.

## Frequently Bought Together

- UCEDER Hot Tub LX H20-Rs1 Thermostat 110V 2kw with Adjustable Temperature Thermostat for Some hot tubs,Underground Small Pool &Bathtub（Suggest Connect 20A Adapter or Breaker
- Intex Replacement Hose Adapter A w/Collar for Threaded Connection Pumps (Pair)
- Happybuy Swimming Pool Pump 1 HP 110V Hot Tub Pump 0.75 Kw Water Circulation Pool Pump Spa Pump Above Ground Pool and Whirlpool Bath

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.th/products/93465409-uceder-hot-tub-lx-h20-rs1-thermostat-110v-2kw-adjustable](https://www.desertcart.co.th/products/93465409-uceder-hot-tub-lx-h20-rs1-thermostat-110v-2kw-adjustable)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*