Warm, comfortable pool water can transform your above ground pool from a seasonal luxury into a year-round oasis. Whether you want to enjoy refreshing swims on cooler evenings, extend your swim season into spring and fall, or simply make your pool more comfortable for kids and adults alike, the right heater makes all the difference.
Above ground pools lose heat faster than inground pools, so a reliable heater helps maximize comfort while minimizing frustration. In this comprehensive guide, we’ll explore five top heaters for above ground pool, explain what makes each one special, and help you decide which model best suits your needs and pool size. These heaters range from efficient electric heat pumps to solar-powered heating mats, offering options for different budgets and performance goals.
1. TURBRO 20,000 BTU Swimming Pool Heat Pump – Efficient Electric Heater
Product Overview
The TURBRO 20,000 BTU Swimming Pool Heat Pump is a powerful electric pool heater designed to warm above ground pools up to approximately 6,500 gallons. This model delivers consistent heat using ambient air and a durable heat exchange system, making it a strong all-around choice for those seeking effective heating without gas or propane.
Key Features
-
20,000 BTU heating output — ideal for medium-sized pools.
-
Electric heat pump technology — draws heat from the surrounding air rather than burning fuel.
-
Titanium heat exchanger — resists corrosion and extends lifespan.
-
COP efficiency rating around 5.58, which means more heat per unit of electricity.
-
IPX4 waterproof design, UL-approved plug, and GFCI for safety.
-
Comes with hose connectors, clamps, and a simple setup guide (no professional installation needed).
Recommendation Rationale
This unit strikes a great balance between heating power and energy efficiency. At 20,000 BTUs, it offers enough heat to noticeably raise water temperature in a reasonable time for above ground pools of typical size. Because it’s an electric heat pump, it costs less to run than a gas heater and doesn’t need a gas line or propane tank.
Performance Analysis
In real-world use, owners report that the TURBRO heat pump puts out steady warmth without loud noise or frequent cycling. Its titanium heat exchanger holds up well even in saltwater conditions and climates where cooling breezes can pull heat away. While ambient air temperature affects its efficiency (it works best when outside temps are above ~60°F), most users find that it extends swim season into spring and fall comfortably.
Best For
Homeowners with above ground pools up to about 6,500 gallons who want efficient electric heating without the cost and complexity of gas models.
Pros and Cons
Pros:
-
Consistent heating at reasonable BTU levels.
-
Durable heat exchanger and weather-proof design.
-
No gas or propane needed (electric only).
Cons:
-
Works best in milder climates — performance drops when air temps fall below ~60°F.
-
Slower to heat water than gas heaters.
Final Recommendation
For most above ground pool owners who want reliable electric heating without extra fuel costs, this TURBRO 20,000 BTU heat pump is a strong performer that consistently raises water temperature while remaining efficient and safe.
2. POOLCOMFT 20,000 BTU Electric Pool Heater – Plug & Play
Product Overview
The POOLCOMFT 20,000 BTU Electric Pool Heater is another excellent electric heat pump, designed for above ground pools up to around 6,000 gallons. It delivers comfortable warmth using plug-in operation and integrates both heating and cooling functionality.
Key Features
-
20,000 BTU heat output — suitable for many above ground pool sizes.
-
Electric heat pump technology — no fuel lines required.
-
Heating and cooling modes — helpful for seasonal comfort.
-
Digital control panel — easy to adjust water temperature.
-
Plug-in convenience — suitable for standard 110V/120V circuits.
Recommendation Rationale
This model is ideal if you want a plug-and-play electric heater that doesn’t require complex wiring or professional setup. The added cooling mode also makes it versatile for year-round use.
Performance Analysis
Users find this heater warms water reliably, and its digital control makes setting and maintaining the right temperature intuitive. Because it runs on common household voltage, it’s particularly good for users who don’t have high-voltage circuits or don’t want the hassle of upgrades.
Best For
Above ground pool owners who want easy installation and simple digital controls with both heating and cooling capabilities.
Pros and Cons
Pros:
-
Simple setup — plug into a standard outlet.
-
Digital display for precise control.
-
Dual heating and cooling.
Cons:
-
Less powerful than heavy commercial units.
-
Best suited for mild climates.
Final Recommendation
If you want quick, straightforward installation and dependable performance for a small to mid-sized above ground pool, this POOLCOMFT model is a great balanced choice.
3. ECOPOOLTECH Above Ground Pool Heat Pump – Mid-Range Heating
Product Overview
The ECOPOOLTECH Above Ground Pool Heat Pump is a moderately powered electric heater suitable for pools up to around 5,000 gallons. It’s designed with efficiency in mind, delivering dependable warmth with low energy use and smart control features.
Key Features
-
Approximately 16,000–22,000 BTU output — effective for small-to-medium pools.
-
High COP rating — converts electricity to heat efficiently.
-
Compact footprint — easy to fit near your pool equipment.
-
Smart control interface — adjust temperature and monitor operation.
Recommendation Rationale
This ECOPOOLTECH model is an affordable middle ground: not the highest BTU of all heat pumps, but efficient and compact, making it a good choice if you want comfort without paying a premium.
Performance Analysis
Real users appreciate that it produces a noticeable temperature boost even on cooler days. Its smart controls help maintain a steady swim temperature without wasted energy, and because it’s not overly large, it integrates easily into most backyard pool setups.
Best For
Pools around 4,000–5,000 gallons where energy savings and compact size are priorities.
Pros and Cons
Pros:
-
Balanced heat output and efficiency.
-
Smart controls and compact design.
Cons:
-
Not powerful enough for very large pools.
-
Performance depends on air temp.
Final Recommendation
For budget-minded owners with small to medium pools, this ECOPOOLTECH heat pump is an efficient, user-friendly heater that delivers solid performance.
4. Intex 28685E Solar Pool Heater Mat – Eco-Friendly Solar Heat
Product Overview
The Intex 28685E Solar Pool Heater Mat uses the sun’s natural energy to gently warm above ground pool water. While not as fast as electric heaters, it’s a cost-effective eco-friendly option that works with most pool pumps and requires minimal setup.
Key Features
-
Solar-powered heating mat — uses sunlight to raise water temperature.
-
11 square-foot surface area for maximum heat absorption.
-
Includes hose attachments and adapters for common pool plumbing.
-
Compatible with pools up to ~8,000 gallons.
Recommendation Rationale
If you want free heating from the sun (no electricity or fuel), this solar mat is a simple way to increase pool temperature by several degrees — especially on sunny days.
Performance Analysis
This solar heater gently raises water temps by around 5–9°F depending on weather. It won’t replace an electric heater in cool climates or cloudy seasons, but on bright days with moderate temperatures, it noticeably improves swim comfort with zero operating cost.
Best For
Owners who want green heating and don’t mind slower, steady warmth from solar energy.
Pros and Cons
Pros:
-
No ongoing energy cost; solar-powered.
-
Easy installation next to existing filter system.
Cons:
-
Slow compared to electric heaters.
-
Dependent on sunny conditions.
Final Recommendation
This solar mat is perfect if your pool gets good sun exposure and you want an inexpensive, eco-friendly way to warm water without ongoing energy costs.
5. TURBRO 18,000 BTU Swimming Pool Heat Pump – Compact Power
Product Overview
The TURBRO 18,000 BTU Swimming Pool Heat Pump is similar to the 20,000 BTU model but configured for slightly smaller pools or tighter spaces. It provides reliable electric heating in a compact and energy-efficient package.
Key Features
-
18,000 BTU output — great for smaller above ground pools.
-
Heat pump design for efficient heating.
-
Titanium heat exchanger resists corrosion.
-
Plug-and-play installation with common electrical connection.
Recommendation Rationale
The slightly lower BTU output is ideal if your pool is smaller or if you want a compact and efficient heater that doesn’t draw a huge power load.
Performance Analysis
Users who choose this model appreciate its balance of heat and energy use. While not as powerful as higher BTU units, it still delivers consistent warmth and performs well in mild climates.
Best For
Above ground pools with smaller volume or limited electrical capacity.
Pros and Cons
Pros:
-
Compact and efficient.
-
Simple connection and operation.
Cons:
-
Not ideal for larger or chilly environments.
Final Recommendation
For above ground pool owners with space or power constraints, this 18,000 BTU heat pump is a practical choice that still extends your swim season.
FAQs About Above Ground Pool Heaters
What type of heater is best for above ground pools?
Electric heat pumps are generally more efficient and cost-effective than gas heaters over time, especially if your climate has mild to moderate temperatures. Solar heaters are cheapest to run but slower.
How do I choose the right size heater?
Match the heater’s BTU output to your pool’s gallon capacity — small pools (up to ~6,000 gal) can use 15,000–25,000 BTU heaters, while larger pools may need higher. Bigger heaters warm water faster.
Do heat pumps work in cool weather?
Heat pumps draw heat from the air, so they are most efficient when outdoor air is warm. In cooler weather (<60°F), they still work but heat more slowly. Solar heaters will also slow down without good sun.
Are solar heaters worth it?
Yes, if you want zero electricity cost and lots of sunshine. Solar mats can warm your water several degrees and are very simple to set up.
Conclusion
Heating an above ground pool elevates comfort and extends your swim season, transforming your backyard into a more inviting place from spring to fall. From efficient electric heat pumps like the TURBRO and POOLCOMFT models to eco-friendly solar options like the Intex Solar Heater Mat, there’s a heater here for every budget and use case. Carefully consider your pool size, climate, and energy preferences to find the right solution — and enjoy warm water and longer swimming days.
