Are you trying to find spa heaters among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!
We investigated and evaluated a number of the top-selling spa heaters on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 11 hours of research and did 31 spa heaters tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!
An overview of our top picks
Table of contents
The best spa heaters you can buy today
- 【Fast Heating 】: The immersion water heater is rated at 2000W and operates at 110-125V AC. Porous design with good thermal conductivity. It will quickly heat 5 gallons of water with high power in a few minutes(longer in winter).If too much water is heated it takes more time or more than two products are used at the same time
- 【Safety And Practicality】: This UL-recognized immersion portable hot tub heater is equipped with a 304 stainless steel shield that prevents direct contact between the internal heating element and people or animals, making it safer to use and preventing burns.Heat dissipates to the water faster by flowing through the holes in the guard.our upgrade design ensures optimal performance.It is recommended not to use it continuously for more than three hours and never forget to unplug it
- 【Widely Used】: The immersion water heater can be used not just for small inflatable swimming pools（better results with more than two heaters working at the same time），but also for hot tubs, bathtubs, buckets,camping shower,farm animals’ water, window washing water and more.But not suitable for large pools
- 【Easy To Use】:Take Electric Submersible water heater immerse in water at proper level,Plug into any grounded 120V AC outlet.with a digital LCD thermometer, easy to measure water temperature. Check power indicator light to make sure immersion water heater is working .Please note: people and animal can't be in the water while the heater is working
- 【After Sales】: Before using the immersion water heater, please read the instructions carefully and follow the precautions. If you are experiencing problems using the product or if the product does not meet your expectations please feel free to contact us
- 【Wide Application】 This heater is specifically designed for Balboa BP Series, Value Series and M7 Series control systems, which is a perfect replacement for Balboa part # 58083.
- 【Important Specification】 Heater Length: 15", Heater Diameter: 2". 5.5KW, 220V heater element. Please choose correct rated heater for replacement and put it in right position to extend the service life of the device.
- 【Direct Replacement】 This heater can be a convenient substitution for a great deal of models, including 26-58083-7S-KS, 26-0807-7S-KS, 2-00-0036C, C2550-0807-TPS, 58121 (1. 5" Tailpiece), 58209, 58000, 58010 (825 Incoloy), 58123, 58089 (Incoloy), 58086, 58105, 46-138-1020, 58016, 55473, 58140, 740-0617, 740-0655, 2-00-0049, 58306 (Has BP Heater Cable), 55624 (Has Titanium Element), Master Spas X300713, 58016 (Marquis Spas), 25-250-0807, 25-200-8083.
- 【What You Get】 Package includes 1 heater, 1 pair of 2. 0" heater split nuts, 1 pair of 2. 0" heater tailpieces with o-ring gaskets.
- 【Superior Construction】 The heater housing is made of premium stainless steel to prevent corrosion and rust, sturdy and wear resistant for providing excellent performance and lasting service time.
- 【Satisfaction Guarantee】 If you're not satisfied with the product, simply return it for a full refund in 30 days or get a replacement during 1 year warranty via our customer service. If your item is defective, incorrect, arrived damaged or any other problems, please contact us (include pictures if possible) and we will reply in 24 hours.
- Reliable, efficient, convenient, on demand heating.Voltage: 220.0volts
- Can replace your existing spa heater
- Save energy, save space, save water
- Digital thermostat control
- Activation flow 10gpm
- BEST FOR: In-ground pools and spas with a surface area up to 600 ft. where natural gas is available. Its low environmental impact makes it ideal for pools and spas located where low-NOx emissions are required.
- PREMIUM PERFORMANCE: The Hayward Universal H-Series 200,000 BTU Natural Gas Heater delivers fast premium heating performance for years of reliable, long-lasting comfort.
- CORROSION PROTECTION: The Universal H-Series boasts exceptional protection against corrosion and premature failure caused by unbalanced water chemistry.
- ENERGY SAVINGS: The efficient, industry-leading design reduces circulation pump run time to provide energy savings.
- EASY-TO-USE: Intuitive front control panel provides easy operation, service and maintenance.
- 【Easy Install 】Easily install the heating element in a short period of time. Just screw it on and it will work! Note: The heater shell must be a Flo-Thru metal tube
- 【Function】hot tub heater replacement can repair heating problems in the hot tub, with the ability to maintain a constant temperature and quickly heat the required area
- 【Excellent Choice】 The 4kw 240v hot tub heating element can quickly heat your hot tub pool or spa, allowing you to better enjoy bathing, resist cold troubles, and enjoy the warmth of life.
- 【High Quality】 The balboa spa heater element are made of titanium steel, which has good corrosion resistance and high thermal strength. And it is very durable.
- 【Service】If you are not satisfied with the product, we deeply apologize. Please contact us as soon as possible so that we can quickly resolve the issue. Customer satisfaction is our unremitting pursuit.
- Heat Fast: there are 2 pieces of the electric pool heaters, they have porous surface made of 304 stainless steel, with the high power, so that they feature the reliable thermal conductivity, and can help you quickly up heat 5 gallons of water in minutes, bringing you an enjoyable using experience
- Dependable and Safe: designed with reliable automatic power off function, the bath tub heater for bath can automatically turn off when the water getting 120 to160 degrees Fahrenheit, which relieves you from worries about fire in some way, and allows you to use it with confidence; When heating the inflatable pool, please avoid the contact of the heater with the inflatable pool to prevent damage
- Simple to Apply: place the pool water heater in a container, then fill the container with water to completely cover the heater, including the stainless steel shroud and plastic parts, and plug the heater into a properly grounded 120V alternating current outlet, turn on the heater, and wait for the heating to finish
- Extensive Applications: the immersion water heater is suitable for containers in various sizes, like portable bathtubs, pond, sink, bucket, mini inflatable swimming pools; Please make sure that your container is designed to hold boiling water; And it is ideal for activities, like washing your car in winter, heating water for farm animals and more; Not recommended for use in large pools; If using an extension cord, check the maximum power usage of the extension cord
- Kind Notice: when working, the portable hot water heater, should be completely submerged in water; Please do not continuously use it for more than 3 hours; To avoid scalding and electric shock, keep away from boiling water during the heating process, and unplug it before touching water ; Furthermore, if your bathtub or small swimming pool has a large capacity and requires more than 2 heaters to be heated at the same time, please do not plug 2 heaters into the same outlet to avoid a fire
- APPLICATION -- Suitable for all 1995-2024 Watkins No-Fault, Hot Springs, Tiger River and Limelight hot tubs spa models.
- DIRECT REPLACEMENT -- Replace for Watkins Heater Cross Reference MATRIX 26-C3160-1S, C3160-1S, 73790. Replaces for old Watkins Heater 6kw No Fault 6000 C3564-1IHH-6000-NHCW-6759, IHH-6000-NHCW-7211.0 (confirm the number on the heater data label correctly matched).
- SPECIFICATION -- Wattage: 6KW 240V, 1.5KW 120V / Element Material: Titanium / Amperage: 25A 240V, 12.5A 120V / Required Flow Rate: 8 GPM / Voltage: 120V or 240V / Approved for all 115 volt 1.5kW and 230 volt - 6kW
- EASY INSTALLATION -- No Modifications Required. Includes a Bleed Tube Extension Kit with coupling & clamps for ease of installation on some spa models.
- FUNCATION -- Direct replacement for Hot Spring 6 KW PDR Heater Assemblies. Low Flow design improves efficiency. Temperature & Hi-Limit Sensors included - PDR Auto reset. Double-pass sleek design replaces discontinued trumpet style heater assembly. The double-pass feature efficiently heats the water in two stages. 6kW Titanium extended service life heater element.
- PACKAGE CONTENT -- This heater includes 2 sensors with new style 4-pin sensor plugs (2002+) and an auto-reset high limit, 18" of 1" O.D. Tubing, 12" of 3/8" O.D. Tubing, Instructions, Barb Coupling .25" x.25", Clamps, 3 wire power cord.
- SATISFACTION GUARANTEE -- If you are not satisfied with Camoo products, simply return it for a full refund in 30 days. Guarantee with 12 months warranty. No worry about buying!
- Reliable, efficient, convenient, on demand heating
- Can replace your existing spa heater
- Save energy, save space, save water
- Digital thermostat control
- Activation flow 10gpm
- Heater, FloThru, Sundance/Spa Bldrs, 15" x 2", 230v, 5.5kW.
- Smart Thermostat: The thermostat comes with a temperature probe, which can sensitively sense the temperature of the pool water. The heating can automatically adjust to the set value of the thermostat. Adjustable temperature range of 20℃-40℃(68℉-104℉), time can be set by yourself.Note: The diameter of the water pipe you use should be 1.5 in(38 mm) for a smooth flowing.
- Secure & Reliable: If the temperature of the water or thermostat housing exceeds 60°C (140°F), the high-temperature protection device will immediately trip. Once the flow is small or not enough water pressure, the thermostat will switch off the power automatically, prevents the thermostat from being damaged by dry burning. Material: Metal;Voltage: 220-240V/50-60Hz;Power: 3KW;Current: 14A;Phase Parameters: Single Phase.
- Durable Material: The inner tank of the thermostat is stainless steel, and it has a long service life without rust. Internal use of international cables, in line with international standards, without having to worry about product quality problems during use. Note:Do not use the thermostat in saltwater, acid water, or alkaline water.
- Simple Operation: The internal circulation of the water heater is smooth, with no scum. It is easy to disassemble. After the correct installation, the user rotates the control switch to set the temperature and the heating indicator lights. The water will automatically heat up to the level set by the user and maintain the temperature.Note:Do not install the thermostat outlet of the bathtub in the middle of pipes or valves or check valves.
- Multiple Usages: Water heater operation is fully automatic and easy to use.Need to be equipped with a circulating water pump about 550W, and the water pressure is higher than 20kpa. It is suitable for heating constant temperature systems such as small hot springs, mini swimming pools, and bathtubs.Capacity:No more than 1.5CBM(396 gallon);Suitable For: Max 2CBM(528 gallon) Hot Tub & Swimming Pool Equipment. Note:Do not place any electrical appliances within 1.5 meters of the thermostat.
- Stainless steel heater housing
- 5. 5Kw 220v 800 incoloy flo-thru heater element
- Balboa oem m7 dual sensors, 12. 0"
- Pair of 2. 0" heater split nuts and pair of 2. 0" heater tailpieces with o-ring gaskets
- 1-year limited
- Easy to operate: You only need one step to set the target temperature, and there is no need for any other operation afterwards. The heater will automatically control the temperature.
- Long lifespan: Titanium metal is suitable for any corrosive liquid, greatly extending its service life. Including fresh water, saline water, groundwater, solutions, chemicals, etc
- PID thermostat: A built-in PID controlled thermostat that can quickly heat up and smoothly control the target temperature. Automatic control, saving time and energy. Water temperature control 50-240 ℉
- High power heater: The CPU with built-in PID control logic can achieve faster and more stable control of water temperature. 1500W titanium hot tub heater can quickly heat, efficiently, and economically save time and money
- Widely used: The fully immersed heater rod can be applied to SPA, bathtubs, cow and sheep drinking water dispensers, industrial liquid heating, ponds, etc. Any liquid heating scenario.
- [Constant Temperature Control]: Use the temperature knob to set and maintain the desired water temperature from 0 to 45°C. Once the desired temperature is set, the thermostat continuously monitors and adjusts the operation of the heating system to maintain the water at a constant temperature.
- [Connect with Circulation Pump]: Spa heater have to connected with circulation pump with power of more than 0.5HP. Smaller pumps may not provide enough water flow to activate the heater. Also, the spa thermostat has to be with a circulation pump rather than a booster pump or submersible pump.
- [1.5" PVC plumbing]: Mxmoonant hot tub heater is equipped with 1.5" PVC pipe fittings, so you should use SCH 40 1.5" PVC pipe for the plumbing connection. A smaller size may result in insufficient water flow. If you want to use other pipe sizes, please note that everything should start with 1.5".
- [Tips for Heating]: It's recommended to fill the hot tub with hot water instead of cold water, as cold water can impact the heating performance. Additionally, it's advisable to limit the water capacity to no more than 400 US gallons and to use an insulation cover to retain the temperature. Otherwise, it may take a long time or may not heat up at all.
- [No Plug]: The pool thermostat does not come with a plug as it is a high power device. It should be connected to a 20A GFCI circuit breaker. It is recommended that you find a professional electrician to complete the circuit connection.
- 【58117 M7 Heater Assembly】 Replacement for Balboa part # 58117. This spa heater assembly is specifically designed for Balboa VS, EL, TS, GS and BP Series control systems.
- 【Replace OE Part Number】 Must-have item to replace for varieties of models, including 58104, 58120, 55033-01, 58106, 58117, 55033-02, 58056, 58109, 55035-01, 55035, 58064, C2400-0807-TPS, 58120, 58148, 26-0540-5S-KS, 58032, 58281, 58114, 55033, 55625, G7410, 53408. Please refer to description below for searching more compatible models.
- 【Important Specification】 Heater Length: 15", Heater Diameter: 2". This heater assembly can be used under 4.0kW 240V or 1.0kW 110V-120V rating. You can directly take it for use as long as your system meets the standards.
- 【Efficient Work】 Fast and simple to install. Package includes 1 heater element, 1 pair of 2.0" heater split nuts, 1 pair of 2.0" heater tailpieces with o-ring gaskets. Comes with the required parts to help you complete heater element installation work efficiently and effortlessly.
- 【Expertly Made & Superior Quality】 The heater housing is precisely machined from fully heat treated alloy steel for better work and reliable use. Higher strength, better corrosion and impact resistance.
- 【Satisfaction Guarantee】 Your satisfaction is our priority. We strive to provide our customers with excellent service. All of our products support 30-Day money-back guarantee, 12-Month warranty for quality-related issues. If your item is defective, incorrect, arrived damaged or any other problems, please contact us (include pictures if possible) and we will reply in 24 hours.
- Perfect Fitment : The 58117 M-7 Heater Assembly is specifically designed to fit most fits for BalboaVS, EL, TS, GS, and BP Series control systems. It is also compatible with series M7. It can replace a wide range of part numbers including 52756, 55624, 55625, 55689, 55813, 56487, 58000, 58002, 58010, and more.
- Reliable Performance and Problem Solving: Say goodbye to circuit breaker tripping caused by corroded heating elements. Replace your old or broken heater with the 58117 M-7 Heater Assembly to ensure reliable performance and efficient heating for your hot tub or spa.
- Superior Quality Construction: Constructed with high-quality stainless steel material, this heater assembly is built to last. Its durable and sturdy design ensures long-term use without rusting or damage, providing you with peace of mind and a reliable heating solution.
- Detailed Product Dimensions: The manifold length measures 17.63 inches and the manifold diameter is 2.25 inches. It has a kilowatt rating of 4.0KW at 240V and 1.0KW at 120V. The assembly features 2 mounting studs and includes removable tail pieces sized at 2" x 2". These specifications make it a perfect fit for your hot tub or spa.
- 100% Satisfaction Guarantee-- If you're not 100% satisfied with this tool set, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty.
- LCD Touchscreen: NEWTRY pool heater has a digital display of the water temperature in real time, allowing you to set the desired temperature more accurately. Alternatively, you can change the temperature unit from Celsius to Fahrenheit to suit your preferences.
- Internal Circulation System: It should be noted that the hot tub heater should be connected to a circulation pump with a power of 0.5HP or more. The heater has a built-in circulation control system, which allows you to control the circulation system by wiring the circulation pump together with the small pool heater.
- No plug supplied: The electric pool heater does not come with a plug. It has two wires, one for power and the other for the circulation pump. You will need to use a 12AWG wire and connect it to a 20A GFCI breaker. Please have an electrician handle the circuit connection.
- SCH40 1.5” Plumbing: You should use standard 1.5" schedule 40 PVC pipe for plumbing connections as the pool thermostat is fitted with 1.5" PVC fittings. Using smaller pipe sizes may result in insufficient water flow.
- Notice: For better heating performance, it is recommended that the capacity does not exceed 500 gallons. Also, please fill the pool or hot tub with hot water and use an insulating cover to maintain the temperature.
- 5.5kw 240V
- Long Life Titanium - 2 Year Limited Warranty
- Universal Flo-Thru Spa Hot Tub Heater Element
- Includes Hardware Kit - 2x Terminal Nuts 2x O-Rings 2x Jam Nuts
- [Self-Heating]: When the water temperature reaches the preset temperature, the pool heater will automatically stop. And when the temperature is lower than the preset temperature, the heater will automatically turn on again.
- [Dry Burning Prevention]: The swimming pool heater is equipped with a pressure switch to protect it from the risk of dry burning due to lack of water in the operating process. If the water pressure drops to 15kPa or less during operation, the pressure switch will shut off the power.
- [High Temperature Protection]: The hot tub heater has a high temperature protection switch. When the temperature reaches 50°C due to a lack of water flow or a blockage in the inlet, the heater will trip (cut off power).
- [Wiring Method]: Pool heater typically do not come with a standard plug attached because it often requires higher voltage and current levels compared to standard household appliances. Instead, they are designed to be hardwired or connected using specialized connectors. High power heater can achieve better heating effect, so we recommend that you invite an electrician to help you wiring.
- [Notice]: The pool thermostat is suitable for pools around 500 gallons. In addition, the electric pool heaters come with 2 different pvc pipe connectors. One inner diameter is 48mm (1.88"), and the other is 50mm (2"); [Tips] It is recommended to use SCH 40 1.5inch pvc pipe.
How to choose a good spa heaters
Does the idea of finding a fantastic spa heaters make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!
Your presence here indicates that you are interested in spa heaters. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top spa heaters products available right now. You might be wondering how we came up with the list. How was this buying guide developed?
First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top spa heaters on the market right now!
The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:
Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top spa heaters brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.
Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top spa heaters based on those.
Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.
Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.
Customer ratings: Would it be accurate to suggest that the spa heaters were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.
Customer Reviews: Like ratings, provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.
Seller Rank: This is very intriguing! Not only do you need a good spa heaters, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.
Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your spa heaters.
Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting spa heaters for months and years to come.
Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.
Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.
These are the standards by which we selected our spa heaters. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.
Why should you believe us?
There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what spa heaters should you purchase in 2022?
This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on spa heaters.
