Hey there, pool enthusiasts! Ready to dive into the world of pool heaters? Whether you’re looking to extend your swimming season or just take the chill off your morning dip, finding the right pool heater is crucial. With so many options out there, it can feel like you’re drowning in choices. But don’t worry – we’re going to break it all down and fish out the best options for you.
Table of Contents
Why You Should Own a Pool Heater
Before we jump into the deep end, let’s talk about why you might want a pool heater in the first place:
- Year-round swimming: Live in a place where it gets chilly? A heater can turn your pool from a summer-only affair into a year-round oasis. Imagine taking a relaxing swim under the stars on a cool autumn evening – pretty nice, right?
- Temperature control: Even in warm climates, nights can get cool. A heater keeps your pool at just the right temperature, no matter what time of day it is. No more shocking cold water when you dip your toes in!
- Boost your property value: A heated pool can be a major selling point if you ever decide to move. It’s like adding a spa to your backyard! Plus, it shows potential buyers that you’ve invested in quality upgrades for your home.
Best pool heaters
When it comes to choosing the perfect pool heater, it’s not just about picking the most powerful or the cheapest option. Each pool heater has its unique strengths and is best suited for specific situations. Let’s dive into the details of our top picks to help you make an informed decision.
1. Hayward W3H150FDN Universal H-Series 150,000 BTU
Best for: Inground pools up to 400 square feet (13,000 gallons), especially in areas with natural gas availability.
Key Features:
- Type: Natural gas
- BTU Output: 150,000
- Cupronickel heat exchanger for superior durability
Why It Stands Out: The Hayward Universal H-Series is a powerhouse for medium to large inground pools. Its cupronickel heat exchanger is a game-changer, offering exceptional resistance to corrosion from pool chemicals and saltwater. This makes it an excellent choice for pools with salt systems or those in coastal areas.
Consider This If: You have access to natural gas and want a reliable, long-lasting heater for your inground pool. It’s also a great option if you’re looking to future-proof your pool, as the cupronickel components will stand up to changes in pool chemistry over time.
2. Ecosmart US SMART POOL 27 Electric Tankless Pool Heater
Best for: Smaller pools (up to 15,000 gallons) where natural gas isn’t available, or for those seeking an eco-friendly option.
Key Features:
- Type: Electric tankless
- Pool Size: Up to 15,000 gallons
- Space-saving design
- Digital thermostat control
Why It Stands Out: The EcoSmart Pool 27 breaks the mold of traditional pool heaters. Its tankless design not only saves space but also provides on-demand heating. The flow sensor technology is a clever addition, enhancing reliability and potentially extending the heater’s lifespan.
Consider This If: You’re working with limited space, don’t have access to natural gas, or are looking for a more environmentally friendly heating option. Keep in mind that while the upfront cost is lower, it may lead to higher electricity bills depending on your usage and local energy rates.
3. Hayward HeatPro W3HP21004T Pool Heat Pump
Best for: Medium to large pools in warm, humid climates, especially in coastal areas.
Key Features:
- Type: Electric heat pump
- BTU Output: 140,000
- Titanium heat exchanger
- Ultra-quiet operation
Why It Stands Out: The Hayward HeatPro is a marvel of efficiency in the right climate. It excels in warm, humid environments where it can extract heat from the air effectively. The titanium heat exchanger and ultra-gold evaporator fin make it incredibly resistant to corrosion, ideal for coastal locations.
Consider This If: You live in a warm climate and are looking for an energy-efficient option for a medium to large pool. It’s especially attractive if you value quiet operation and have concerns about corrosion due to your location or pool chemistry.
4. Raypak PR266AENC50 266,000 BTU Natural Gas Heater
Best for: Large inground pools up to 25,000 gallons, especially in cooler climates or for those who need rapid heating.
Key Features:
- Type: Natural gas
- BTU Output: 266,000
- Digital electronic ignition
- ProTek shield for corrosion protection
Why It Stands Out: The Raypak PR266AENC50 is a powerhouse, offering rapid heating for large pools. The ProTek shield is an innovative feature, providing an extra layer of protection against corrosion. The digital electronic ignition not only makes it easy to use but also contributes to fuel efficiency.
Consider This If: You have a large pool and need the ability to heat it quickly, such as for occasional use or in variable climates. It’s also a good choice if you value precise temperature control and are looking for a balance of power and efficiency.
5. Raypak PR106AENC 105,000 BTU Heater
Best for: Smaller pools (up to 10,000 gallons) or budget-conscious buyers who need a versatile heater.
Key Features:
- Type: Natural gas
- BTU Output: 105,000
- Compatible with both inground and above-ground pools
- Analog temperature control
Why It Stands Out: The Raypak PR106AENC offers great value without compromising on quality. Its versatility in working with both inground and above-ground pools makes it a flexible choice for various setups. The analog control might seem old-school, but it’s simple and reliable.
Consider This If: You’re working with a tighter budget but don’t want to sacrifice quality, or if you have a smaller pool. It’s also a good option if you prefer simpler, straightforward controls over digital interfaces.
6. Pentair MasterTemp 125 Low NOx Pool Heater
Best for: Environmentally conscious pool owners with small to medium-sized pools, especially in areas with strict emissions regulations.
Key Features:
- Type: Propane gas
- BTU Output: 125,000
- Pool Size: Up to 15,000 gallons
- Low NOx emissions
- 82% efficiency rating
Why It Stands Out: The Pentair MasterTemp 125 combines rapid heating with environmental responsibility. Its low NOx emissions make it compliant with strict air quality regulations. The high efficiency rating means less wasted energy, which is good for both your wallet and the environment.
Consider This If: You live in an area with strict emissions guidelines or if you’re environmentally conscious. It’s also a great choice if you value quick heating and quiet operation in a compact package.
7. Raypak PR266AENX51 240,000 BTU Heater
Best for: Large saltwater pools up to 25,000 gallons.
Key Features:
- Type: Natural gas
- BTU Output: 266,600
- Cupronickel heat exchanger
- Digital thermostat with remote compatibility
Why It Stands Out: This Raypak model is specifically designed to handle the challenges of saltwater pools. The cupronickel heat exchanger and ProTek shield provide superior protection against corrosion, a common issue with saltwater systems. The digital thermostat with remote compatibility adds a layer of convenience.
Consider This If: You have a large saltwater pool and need a heater that can stand up to the corrosive nature of salt. It’s also a great option if you value the convenience of remote temperature control.
8. AquaCal SQ120R HeatWave SuperQuiet Pool Heat Pump
Best for: Pool owners looking for both heating and cooling capabilities, especially those with variable-speed pool pumps.
Key Features:
- Type: Electric heat pump
- BTU Output: 110,000
- Pool Size: Up to 25,000 gallons
- Heating and cooling capabilities
- Titanium heat exchanger
Why It Stands Out: The AquaCal SQ120R is a versatile 2-in-1 solution, offering both heating and cooling. Its titanium heat exchanger provides excellent corrosion resistance, and its compatibility with variable-speed pumps makes it a forward-thinking choice. The quiet operation is a bonus for those who value peace and tranquility around their pool.
Consider This If: You live in a climate where you might need to both heat and cool your pool, or if you have a variable-speed pump. It’s also an excellent choice if noise is a concern for you or your neighbors.
9. Smart Pool S601 Pool Solar Heaters
Best for: Eco-conscious pool owners in sunny climates with available space for solar panels.
Key Features:
- Type: Solar
- Panel Size: 4 feet by 20 feet
- Polypropylene construction with fiberglass reinforced headers
Why It Stands Out: The Smart Pool S601 offers an environmentally friendly and cost-effective way to heat your pool. It’s a great long-term investment, as it uses free solar energy to heat your pool. The polypropylene construction and fiberglass reinforced headers ensure durability even in windy conditions.
Consider This If: You live in an area with plenty of sunshine and have the space to install solar panels. It’s an excellent choice if you’re looking to reduce your carbon footprint and save on energy costs in the long run. However, be prepared for slower heating times compared to gas or electric heaters.
Remember, the best pool heater for you depends on your specific circumstances – pool size, climate, energy costs, and personal preferences all play a role. Consider these factors alongside the strengths of each heater to make the best choice for your pool.
What to Consider When Buying the Best Pool Heater
Alright, let’s get down to business. When you’re shopping for a pool heater, keep these factors in mind:
1. Fuel Type
Pool heaters can be powered by electricity, gas, or even the sun. Each has its pros and cons:
- Gas-fueled type: These bad boys heat up your pool quickly. They’re great for areas with cheap natural gas or propane. Just keep in mind, they can be pricey to run, especially if you’re using propane that needs frequent refills.
- Solar-powered type: The eco-warrior’s choice. They’re cheap to run and great for the environment. But here’s the catch – they work best in sunny areas and can take longer to heat your pool. If you live in Seattle, you might want to think twice!
- Electric-powered type: These come in two flavors:
- Direct flow heater: Heats water directly as it flows through. It’s compact, like a tankless water heater for your pool.
- Heat pump-based electric heater: Works like an air conditioner in reverse. They’re more expensive upfront but can be more cost-effective in the long run, especially in warmer climates.
2. Pool Compatibility
You’ve got to make sure the heater you’re eyeing works with your type of pool. Some heaters are versatile, but others are designed specifically for in-ground or above-ground pools. Using the wrong type could lead to poor performance or even damage to your pool or heater.
Inground and Aboveground
Heaters for above-ground pools are often smaller and more energy-efficient than those for in-ground pools. Why? Above-ground pools are typically smaller and lose heat faster, so they need a different heating approach.
Saltwater
If you’ve got a saltwater pool, pay extra attention here. Saltwater can be tough on heaters, causing corrosion over time. Look for heaters with cupronickel heat exchangers – they’re like kryptonite to corrosion!
3. Pool Dimension
Size matters when it comes to pool heaters. The more water you’ve got, the more powerful your heater needs to be. A heater that’s too small will be like trying to warm up a lake with a candle – it’ll work hard but you won’t see much result.
4. BTU Output Rating
BTU stands for British Thermal Unit – it’s how we measure the heating power of pool heaters. The higher the BTU rating, the more heating punch your heater packs. But bigger isn’t always better – you want to match the BTU rating to your pool size and climate.
Here’s a quick way to estimate the BTUs you need:
- Calculate the BTUs needed to heat your pool by one degree: Multiply your pool’s volume in gallons by 8.33 (the weight of a gallon of water).
- Figure out how many degrees you typically need to raise the temperature.
- Multiply these numbers together.
For example, if you have a 20,000-gallon pool and you usually need to raise the temperature by 20 degrees: 20,000 x 8.33 x 20 = 3,332,000 BTUs
Remember, this is a ballpark figure. Factors like wind, humidity, and whether you use a pool cover can all affect heating needs.
5. Climate
Where you live plays a big role in choosing your heater:
- For warm areas: You might get away with a less powerful heater or even a solar option. In fact, in really hot climates, you might even want a heater that can cool your pool!
- For cold areas: You’ll want a heater with some serious muscle, probably gas or a high-powered electric model. The colder it gets, the more BTUs you’ll need.
6. Budget
Don’t just look at the price tag. Consider:
- Installation costs (especially for gas heaters that might need new gas lines)
- Energy efficiency (will it cost you an arm and a leg to run?)
- Maintenance costs over time
- Expected lifespan of the heater
Sometimes spending a bit more upfront can save you money in the long run.
7. Ability to Conserve Generated Heat
A good pool heater doesn’t just generate heat – it keeps it. Look for heaters with good insulation. For solar heaters, this is especially important as they need to balance heat absorption with heat retention.
8. Product Casing
The heater’s casing isn’t just about looks. It provides extra insulation, protects the heater from the elements, and in the case of solar heaters, maximizes heat absorption. A good casing can extend the life of your heater significantly.
9. Ability to Control the Flow Rate
Some heaters let you adjust the water flow rate. This can be handy for fine-tuning your heating, but it’s not a must-have feature for everyone.
10. Installation Ease
Unless you’re a DIY pro, you’ll probably want to factor in installation when choosing your heater:
- Solar pool heaters: These are often the easiest for DIYers to install, as long as you’ve got the space and aren’t afraid of heights!
- Electric pool heaters: These usually need a pro, especially when it comes to wiring.
- Gas pool heaters: These are the trickiest to install, often requiring both gas and electrical work. Definitely a job for the pros.
11. Warranty and Maintenance
A good warranty can save you headaches down the road. Look for heaters with solid warranty coverage, and factor in maintenance needs:
- Most heaters need annual check-ups, more if you use them year-round.
- You’ll need to winterize your heater if you live in a cold climate.
- Regular cleaning and upkeep can extend your heater’s life significantly.
Frequently Asked Questions
Q: How big of a pool heater should you get? A: It depends on your pool size, desired temperature rise, and climate. Use online BTU calculators or consult with a pool professional for the most accurate sizing.
Q: How long does an average-sized pool take to heat? A: For a 10,000 to 20,000 gallon pool, you can usually raise the temperature by about 5 degrees in 12-24 hours with a gas heater. Electric and solar heaters may take longer.
Q: How long will my pool heater last? A: With proper care, most pool heaters last 5-10 years, but some can last even longer.
Q: What are ways to maintain my pool heater? A: Regular maintenance includes:
- Checking and cleaning burner inputs
- Inspecting fuel lines for leaks (for gas heaters)
- Cleaning or replacing filters
- Checking electrical connections
- Having annual professional inspections
Q: How can I tell if my pool heater is operating well? A: Check for:
- Proper electrical supply (lights and display working)
- Good gas flow and burner ignition (for gas heaters)
- Unobstructed water flow
- Adequate air input and ventilation
Q: How many degrees does my pool’s heat drop overnight? A: An uncovered pool can lose up to 10 degrees Fahrenheit on a cold night. Using a pool cover can reduce this to just a few degrees.
Q: Is it okay to turn off my pool heater overnight? A: If you use your pool daily, it’s often more efficient to lower the temperature a few degrees rather than turning it off completely. For infrequent use, turn it off and heat it up the day before you plan to swim.
Q: Is it okay to install the pool heater by myself? A: While some solar heaters can be DIY projects, it’s generally best to have a professional install your pool heater, especially for gas and electric models. This ensures proper setup and safety.
The Bottom Line
Choosing the right pool heater comes down to understanding your specific needs. Consider your pool type and size, your climate, your budget (both upfront and long-term), and your heating needs.
For larger in-ground pools, especially in cooler climates, gas heaters like the Hayward Universal H-Series or the Raypak PR266AENC50 are solid choices. They provide quick, powerful heating.
If you’re in a warmer climate or have a smaller pool, an electric heat pump like the Hayward HeatPro or the versatile AquaCal SQ120R might be more cost-effective in the long run.
For the eco-conscious pool owner in a sunny area, solar options like the Smart Pool S601 can be a great choice, providing free heat from the sun.
Remember, the best pool heater for you is the one that fits your specific situation and keeps you swimming comfortably. So take the plunge, invest in a good pool heater, and enjoy your perfectly heated pool all season long!
Last update on 2025-02-12 / Affiliate links / Images from Amazon Product Advertising API
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