6 Best Alternatives to the AQUASTRONG Swimming Pool Heat Pump (2026)

How each alternative compares

Varpoolfaye 90,000 BTU 220V Heat Pump

The Varpoolfaye 90,000 BTU model targets larger pools up to 25,000 gallons, offering significantly more heating power than the 16,000-gallon AQUASTRONG unit. It operates on 220V power, which may require different electrical setup compared to standard outlets. While it also includes mobile app control for remote management, its primary advantage is the ability to heat larger water volumes faster. If your pool exceeds 16,000 gallons or you need rapid temperature recovery in cold weather, this higher-output inverter pump is a practical upgrade. It sacrifices compact dimensions for raw capacity, making it best for spacious inground installations where heating speed is a priority over space constraints.

Varpoolfaye 65,000 BTU Inverter Pool Heat Pump

This Varpoolfaye 65,000 BTU heat pump supports pools up to 21,000 gallons, bridging the gap between the 16,000-gallon AQUASTRONG and larger industrial units. It runs on 220V and includes app control, matching the smart features of the original. However, its physical dimensions are notably larger, measuring 36.3 inches in length and 25.7 inches in height. The increased BTU output allows for efficient heating of slightly larger tanks without the bulk of the 90,000 BTU model. Choose this alternative if you have a pool between 16,000 and 21,000 gallons and need extra heating capacity. It offers a balanced mix of smart control and moderate power expansion for medium-large inground pools.

NATURAQUELL 55,000 BTU Inverter Pool Heat Pump

The NATURAQUELL 55,000 BTU unit matches the AQUASTRONG in heating capacity for 16,000-gallon pools but distinguishes itself with a stealth black finish and top-discharge design. It features inverter technology for efficiency and app control, similar to the original. Its dimensions are 25.3 inches by 36.4 inches, offering a different footprint that may fit specific yard layouts better. This model is ideal for owners who prefer a darker aesthetic or need to direct airflow upward to avoid blowing air onto neighbors or patio furniture. It provides comparable performance with a focus on visual integration and directional airflow, making it a strong visual alternative for medium-sized pools.

AQUASTRONG 48" Top Discharge Heat Pump

This AQUASTRONG 48-inch top discharge heat pump shares the brand’s ecosystem but differs significantly in ventilation design. It features a 48-inch height with top discharge, whereas the original model uses side discharge. This design saves horizontal space, making it suitable for tight areas where side airflow is restricted. It is rated for larger pools, with dimensions supporting up to 22 by 30 feet. The top discharge prevents cold air from blowing directly into seating areas, improving comfort. If your pool setup has limited side clearance or you want to direct exhaust upward, this vertical model is a practical choice. It maintains the brand’s quality while adapting to space-constrained installations.

VARMINPOOL 65,000 BTU Inverter Pool Heat Pump

The VARMINPOOL 65,000 BTU inverter pump offers higher heating output for pools up to 20,000 gallons, surpassing the 16,000-gallon limit of the original. It operates on 220V and includes app control for remote management. A key differentiator is its titanium heat exchanger, which provides enhanced corrosion resistance compared to standard materials. Weighing 110 pounds, it is a robust unit designed for durability in harsh water conditions. This model suits owners with 220V power who want longer component life and more heating power. It is an excellent choice for saltwater pools or areas with high humidity, where corrosion resistance and efficient heating are critical for long-term reliability.

Pentair IntelliFlo VS+SVRS 3 HP Pool Pump

The Pentair IntelliFlo VS+SVRS is a variable speed pool pump, not a heat pump, so it serves a different function. It provides 3 horsepower of power with programmable speed settings for energy-efficient water circulation. Unlike the AQUASTRONG, it does not heat or cool water. Its 52-pound weight and white finish make it a standard replacement for existing pump systems. Choose this unit if your primary need is precise flow control and filtration efficiency rather than temperature management. It is best for owners who already have a heating source and want to optimize pump performance for safety and energy savings. It complements heat pumps but does not replace their heating capabilities.

Quick picks

Our 7 picks

1 Best overall

AQUASTRONG 55,000 BTU Inverter Pool Heat Pump

Best for: pools up to 16,000 gallons needing app control

Heating Capacity

55,000 BTU

Pool Capacity

16,000 gallons

Compressor Technology

Full DC inverter

Operational Modes

Heating and cooling

COP Rating

15.8

Connectivity

Mobile app

View on Amazon: AQUASTRONG 55,000 BTU Inverter Pool Heat Pump

The AQUASTRONG 55,000 BTU heat pump uses full DC inverter technology to heat or cool pools up to 16,000 gallons. It achieves a 15.8 COP efficiency rating and operates at 50dB. You can control the unit via a mobile app or physical panel. The system supports heating from 47°F to 104°F and cooling down to 83°F. It includes hose adapters for easy installation on standard plumbing.

Pros

• High 15.8 COP efficiency rating with full DC inverter compressor
• Dual heating and cooling modes for year-round temperature control
• Mobile app connectivity for remote scheduling and monitoring
• Quiet 50dB operational noise level for backyard use

Cons

• Heating capacity capped at 55,000 BTU, lower than some competitors
• Maximum pool size limited to 16,000 gallons
• No physical remote control included for operation

Good fit if

• You need both heating and cooling functions for your pool
• You want to monitor and adjust settings via a mobile app
• Your pool holds up to 16,000 gallons of water

Skip if

• You require heating for pools larger than 16,000 gallons
• You need a heating capacity exceeding 55,000 BTU
• You prefer manual controls without smartphone integration

Verdict: AQUASTRONG 55,000 BTU Inverter Heat Pump fits homeowners with pools up to 16,000 gallons who value energy efficiency and remote app control over raw heating power.

2 Best premium

Varpoolfaye 90,000 BTU 220V Heat Pump

Best for: Large inground pools needing high output and app control

Heating Capacity

90,000 BTU

Pool Capacity

25,000 Gallons

Voltage

220V

Compressor Technology

Inverter

COP Rating

12.5

Connectivity

WiFi

View on Amazon: Varpoolfaye 90,000 BTU 220V Heat Pump

This Varpoolfaye unit delivers 90,000 BTU with a COP of 12.5, making it a high-output option for larger pools up to 25,000 gallons. It uses inverter technology for stable heating and runs quietly at 47dB. The 220V system includes WiFi app control and an intelligent touch panel. It suits inground pools where rapid heating and remote management are priorities.

Pros

• 90,000 BTU output with 12.5 COP for efficient heating
• WiFi app control for remote temperature and schedule adjustments
• Quiet operation at 47dB for peaceful poolside use
• Inverter technology ensures longer lifespan and lower energy use

Cons

• Requires 220V electrical connection
• Limited to pools up to 25,000 gallons
• Condensation leakage from the bottom is normal during operation

Good fit if

• You have a large inground pool up to 25,000 gallons
• You want remote control via a smartphone app
• You need a high-BTU unit for rapid heating

Skip if

• You only have a small pool under 10,000 gallons
• You only have 110V outlets available
• You prefer a unit that does not produce condensation

Verdict: Varpoolfaye 90,000 BTU Inverter Pool Heat Pump fits large inground pool owners who need high output and remote app control. It is a strong choice for those prioritizing heating speed and quiet operation over compact size.

3 Best 21,000 gallons

Varpoolfaye 65,000 BTU Inverter Pool Heat Pump

Best for: smaller inground pools under 21,000 gallons

Heating Capacity

65,000 BTU

Pool Capacity

21,000 gallons

Voltage

220V

Compressor Technology

Inverter

COP Rating

6.6

Use

Poolside, Inground Pools

View on Amazon: Varpoolfaye 65,000 BTU Inverter Pool Heat Pump

This 220V heat pump delivers 65,000 BTU with a COP of 6.6. It targets pools up to 21,000 gallons using inverter technology for efficient heating. The unit includes WiFi app control and a touch panel. It operates at 45dB and fits inground pools. You get a 118-inch cord and 1.5-inch connectors for setup. It extracts ambient heat for stable water temperatures.

Pros

• High COP of 6.6 for energy efficiency
• WiFi app control for remote adjustments
• Quiet operation at 45dB
• Inverter compressor technology for longevity

Cons

• Limited to 21,000 gallon pool capacity
• Requires 220V electrical connection
• Condensation leakage is a normal operational feature

Good fit if

• You have an inground pool under 21,000 gallons
• You want remote app control for scheduling
• You need a quiet 45dB heating unit

Skip if

• You need to heat pools larger than 21,000 gallons
• You only have a 110V electrical outlet
• You prefer gas heating over electric heat pumps

Verdict: Varpoolfaye 65,000 BTU Inverter Heat Pump suits owners of smaller inground pools who value app control and quiet operation. It provides efficient heating for tanks up to 21,000 gallons.

4 Best budget

NATURAQUELL 55,000 BTU Inverter Pool Heat Pump

Best for: medium pools needing heating and cooling

Heating Capacity

55,000 BTU/h

Pool Capacity

Up to 16,000 gallons

Compressor Technology

Full inverter

Operational Modes

Heating and cooling

COP Rating

Up to 16.00

Connectivity

Smart Life app, WiFi

View on Amazon: NATURAQUELL 55,000 BTU Inverter Pool Heat Pump

The NATURAQUELL inverter pool heat pump offers 55,000 BTU/h heating and cooling for pools up to 16,000 gallons. Its full inverter compressor adjusts output to maintain steady water temperatures, reducing swings common with on/off cycling. You control it via a Smart Life app or touch panel. It operates quietly at 52 dB(A) and includes 2-inch connectors for easy installation. This unit suits those seeking efficient temperature management for medium-sized pools.

Pros

• Full inverter compressor adjusts output for steady temperatures
• Heating and cooling modes for year-round comfort
• Smart Life app and WiFi connectivity for remote control
• High COP rating of up to 16.00 for efficiency
• Quiet 52 dB(A) operation with titanium heat exchanger

Cons

• Lower heating capacity than 65,000 BTU alternatives on this list
• Maximum pool capacity limited to 16,000 gallons
• Requires WiFi setup for app functionality

Good fit if

• You need both heating and cooling capabilities
• You want app control for remote temperature management
• You have a pool under 16,000 gallons

Skip if

• You require heating for pools larger than 16,000 gallons
• You need higher than 55,000 BTU/h heating power
• You prefer manual controls over app connectivity

Verdict: The NATURAQUELL inverter pool heat pump is a solid choice for owners of medium-sized pools who value precise temperature control and remote app management. Its inverter technology ensures efficiency, though its capacity and heating output are lower than larger 65,000 BTU models.

5 Best 48"

AQUASTRONG 48" Top Discharge Heat Pump

Best for: large pools needing top ventilation

Heating Capacity

110,000 BTU

Pool Capacity

32,000 Gallons

Compressor Technology

Full Inverter

COP Rating

12

Use

Poolside, Inground Pools

Height

48"

View on Amazon: AQUASTRONG 48" Top Discharge Heat Pump

This AQUASTRONG heat pump uses a top-discharge design to fit tight spaces. It delivers 110,000 BTU of heating power for pools up to 32,000 gallons. The unit runs at a quiet 37 dB and achieves a 12 COP for efficient energy use. It includes 2-inch adapters for easy installation. You get consistent water temperatures year-round with this high-capacity inverter model.

Pros

• Top air flow design saves space
• 110,000 BTU heating capacity
• 12 COP energy efficiency
• 37 dB quiet operation

Cons

• Large 48-inch height
• No smart app control mentioned
• Side-vent models not included

Good fit if

• You need a top-discharge unit
• You have a large pool
• You want quiet operation

Skip if

• You need a compact height
• You want smart controls
• You have a small pool

Verdict: AQUASTRONG 48" Top Discharge Heat Pump suits owners with large pools who need space-saving top ventilation and quiet performance.

6 Also great

VARMINPOOL 65,000 BTU Inverter Pool Heat Pump

Best for: inground pools up to 20,000 gallons

Heating Capacity

65,000 BTU

Pool Capacity

20,000 Gallons

Voltage

220–240V

Compressor Technology

Inverter

COP Rating

12

Connectivity

WiFi Control Via App

View on Amazon: VARMINPOOL 65,000 BTU Inverter Pool Heat Pump

The VARMINPOOL 65,000 BTU inverter pool heater targets pools up to 20,000 gallons. It uses 220–240V power and weighs 110 lbs. This unit includes WiFi control for remote adjustments. The titanium heat exchanger resists corrosion. It suits inground pools and larger above-ground setups. You get stable heating with lower energy use compared to non-inverter models.

Pros

• 65,000 BTU heating capacity for medium pools
• Inverter compressor technology for energy efficiency
• WiFi smart access for remote control
• Titanium heat exchanger for corrosion resistance

Cons

• Requires 220–240V electrical connection
• Heavy at 110 lbs
• No remote control listed in specifications

Good fit if

• You have an inground pool up to 20,000 gallons
• You need WiFi control for your heater
• You have a 220V outlet available

Skip if

• You only have a 110V electrical system
• Your pool exceeds 20,000 gallons
• You prefer a lighter unit under 100 lbs

Verdict: VARMINPOOL 65,000 BTU Inverter Pool Heater fits homeowners with 220V power and pools up to 20,000 gallons who want smart WiFi control and corrosion-resistant titanium components.

7 Best variable speed

Pentair IntelliFlo VS+SVRS 3 HP Pool Pump

Best for: inground pool safety and speed control

Use

Poolside, Inground Pools

Speed

Variable Speed

Horsepower

3 HP

Weight

52 pounds

View on Amazon: Pentair IntelliFlo VS+SVRS 3 HP Pool Pump

This Pentair IntelliFlo pump is a variable speed unit designed for inground pools. It features a 3 HP motor and a Safety Vacuum Release System. The on-board control system allows for programmable speeds. It weighs 52 pounds and is white. This pump suits users who need precise flow control and safety compliance for their in-ground pool systems.

Pros

• Variable speed operation for efficient flow control
• 3 HP motor capacity
• Safety Vacuum Release System included
• Programmable speeds via on-board control

Cons

• Heavier build at 52 pounds
• No remote control or Wi-Fi mentioned
• Designed for inground pools only

Good fit if

• You need variable speed control for energy efficiency
• You require a Safety Vacuum Release System
• You are upgrading an inground pool pump

Skip if

• You want a lightweight portable unit
• You need remote app control
• You have an above-ground pool

Verdict: Pentair IntelliFlo VS+SVRS 3HP Variable Speed Pump is a robust choice for inground pool owners who prioritize safety features and programmable speed settings over remote convenience.

Specifications side by side

Frequently asked questions