Best Wärmepumpe Cop 2026

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Last Updated - 22.07.2026

Best Choice

01

WARMBLU

WARMBLU H18 Inverter Pool Heat Pump 18 kW | For Pools up to 79 m³ | Highly Efficient Pool Heating with COP 16, Over 45% Energy Saving, WiFi Control, 6.5 m³/h, Heat Pump for Above Ground & Built-in

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

[Why WARMBLU & Support]: As a leading manufacturer of pool heat pumps, WARMBLU stands for first-class product quality with over 30 certifications, 5 automatic production lines and 4 world-class laboratories. Benefit from 12+12 months warranty and lifetime friendly customer service. Detailed video instructions and access to our helpful support community can be found directly in the enclosed manual.
[Whisper Quiet Operation Under 45dB]: Protect the tranquility in your garden. With a noise level of less than 45 dB, the WARMBLU H18 pool heater heat pump works quieter than the hum of a standard refrigerator. You get powerful warmth without annoying noise, leaving your outdoor space a peaceful oasis.
[SpringBreath 1.0 Heating System Efficient Heating Performance]: The SpringBreath 1.0 heating system has been specially developed for pools up to 79 m³. The H18 18kW air heat pump with corrosion-resistant pure titanium heat exchanger achieves a maximum COP value of up to 16. It allows the water to heat up to 40°C quickly and noticeably extends your bathing season.
[EASY INSTALLATION & CONTROL]: Enjoy a no-hassle installation of the H18 pool heat pump. Daily control is easily done via the intuitive mobile app or the modern touch panel directly at your home. Maximum comfort is right in your hands.
[Drastic cost reduction]: The built-in intelligent chip and dynamic algorithm of the WARMBLU H18 inverter heat pump ensure precise inverter control that optimises performance. This reduces operating costs by over 45% compared to conventional electric or gas heaters and maximises your investment.

1.899,88 €
02

VARMINPOOL

Pool Heat Pump 12 kW Inverter, Pool Heater for Pools up to 45,000 L, COP up to 13.0, Heating & Cooling, WiFi, R32, DN50, 42-53 dB(A), for Garden Pool, Above Ground Pool, Steel Wall Pool

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quiet outdoor operation with DN50 connection: with approx. 42-53 dB(A), IPX4 protection and DN50 water connections, the pool heat pump is designed for outdoor use around private pool systems. PVC pipe adapter, condensation drain hose and rubber vibration damper make installation easier. Note: The first heating phase can take up to 48 hours depending on pool size, outdoor temperature and pool cover. A pool cover is especially recommended at night.
Inverter technology: strong heating, keeping efficiently: when heating, the 12 kW pool heat pump uses its power reserve to quickly bring the pool water to the desired temperature. After that, the inverter technology automatically regulates the power and maintains the temperature at an adjusted speed. Compared to simple on/off systems, the heat pump runs more evenly, avoids frequent starting and stopping and supports more efficient operation in daily keeping the water temperature.
Heating, cooling and WiFi control: Whether cool morning hours, changeable weather or hot summer days: the inverter pool heat pump supports heating, cooling, auto, smart and turbo mode. Temperature, timer and operating mode can be easily adjusted via the digital control panel or via WiFi function, so you can flexibly adjust the pool temperature to the weather, season and bathing habits.
For pools up to approx. 45,000 litres: This 12 kW pool heat pump is suitable for medium-sized garden pools, above-ground pools and steel wall pools up to approx. 45,000 L. It offers more power reserve than many compact mini pool heaters and helps to temperature larger amounts of water more comfortably - ideal for private pool systems in the German bathing season.
12 kW heating output and COP up to 13.0: At air 26 °C / water 28 °C, the pool heater reaches a heating output of up to 12 kW and a COP of up to 13.0. The heat pump uses ambient air and R32 refrigerant to heat the pool water and is an efficient solution for tempering garden pool, above-ground pool or steel wall pool.

1.599,00 €
Value for Money

03

poolomio

poolomio® Mini Heat Pump Pool 3.75 kW - Compact Efficient Pool Heater COP 5.5 to 15,000 L - Plug & Play with RCD Plug, Titanium Heat Exchanger - Heat Pump 32 mm Connection Including Accessories

18% Off

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Robust design and high durability: The high-quality metal housing in anthracite protects the technology reliably outdoors. The titanium heat exchanger is resistant to chlorine and salt water, ensuring long-lasting and reliable use.
Reliable release with low temperatures: can be used from an outside temperature of 10 °C, the pool heater heats your water up to 30 °C. Ideal for the pre-season and post-season to significantly extend your bathing season.
Plug and play – easy to install: thanks to the integrated RCD safety plug, the heat pump is ready to use. Simply connect, turn on and set the desired temperature - without the need for complex installation or additional accessories.
Integrated temperature control and acoustic control: the pool heat pump starts and stops automatically to keep your desired temperature constant. As soon as the water drops below the set value, the heater starts working independently - for consistent comfort without manual intervention.
Efficient pool heating: with 3.75 kW heat output and a COP value of 5.5, this pool heater ensures pleasantly warm water with low power consumption. So you can enjoy more bath time while reducing your energy costs.
Compact pool heat pump for small pools: this pool heat pump is ideal for above ground pools and smaller swimming pools up to 15 m³. Thanks to the ultra-compact design, it takes up little space and blends discreetly into your garden - perfect for efficient heating in a small space.
COMPLETE MADE AND SOFFORT CLEAR: The pool heat pump is delivered ready for connection and can be easily integrated into existing pool systems thanks to the 32 mm connection. Everything is designed for quick start-up - for instant bathing fun.

399,00 € 489,00 €(18% Off off)
04

Pool-Systems

XPS-35 Pool Heat Pump 3.5 kW up to 12 m³, COP 5.5 - Energy-Efficient Pool Heater for Above Ground Pools - Ultra Compact Pool Heater

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Up to 80% savings on heating costs: the future of heating paddling pools, swimming pools, above-ground pools and steel wall pools.
Plug & Play – ready to use: plug-in Schuko connection for the socket.
Energy efficient pool heat pump C.O.P. 5.5 Efficiency: Probably the most effective and energy-saving pool heater in this size.
5 YEAR WARRANTY Reliable, durable and a safe choice for many pool seasons.
3.5 kW heating output for pools up to 12 m³: optimally sized for small pools for up to 40°C water temperature.

429,00 €
05

VARMINPOOL

Pool Heat Pump up to 12 kW for Pools up to 45,000 L, Inverter Pool Heater Electric with Heating & Cooling Function, COP up to 13.0, Quiet 42-53 dB(A), R32, DN50, IPX4, for Garden Pool Above Ground

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

R32 refrigerant and sustainability features: this inverter pool heater uses R32 refrigerant and efficient air-water heat transfer to temperature pool water more energy-saving than many classic electric heating solutions. Thanks to proven sustainability features, it is a suitable choice for pool owners who value performance, efficiency and a more conscious product decision.
Quiet outdoor operation with DN50 connection: with approx. 42-53 dB(A), the heat pump is pleasantly restrained for use in the garden. DN50 water connections, IPX4 protection, PVC pipe adapter, condensation drain hose and rubber vibration damper support clean integration into private pool facilities. Note: The initial heating phase can take up to 48 hours depending on the pool size, outdoor temperature and pool cover; a pool cover is especially recommended at night.
Inverter technology with COP up to 13.0: the pool heat pump uses the ambient air to heat the pool water and intelligently adjusts its performance to the actual heating requirements. When heated, it works more powerfully, while maintaining the target temperature, it automatically reduces power. At air 26 °C / water 28 °C, it reaches up to 12 kW of heat output and a COP of up to 13.0 - ideal for users who want to combine strong power and more conscious power consumption.
Heating, cooling and comfortable control: whether cool morning hours, changeable weather or hot summer days: the pool heat pump supports heating, cooling, auto, smart and turbo mode. Temperature, timer and operating modes can be easily adjusted via the digital control panel and WiFi function, so that the water temperature can be adjusted more flexibly to weather, season and personal bathing habits.
For medium-sized pools up to approx. 45,000 litres: This 12 kW inverter pool heat pump is suitable for medium-sized garden pools, above-ground pools and steel wall pools up to approx. 45,000 litres. Compared to small mini heat pumps, it offers more power reserve to temperature larger amounts of water more comfortably and extend the bathing season in Germany more comfortably.

1.499,99 €
06

Steinbach

STEINBACH Startis Style Heat Pump - 049400Z - Pool Heat Pump up to 20,000 L - 4.3 kW - With WLAN App Control - Suitable for Salt Water - Efficient R290 Refrigerant

20% Off

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

WLAN app control via Steinbach Control: The operation is convenient via smartphone. Settings and temperature control can be controlled directly via the app.
Suitable for salt water and robust workmanship: suitable for salt water up to 5 g/l. The powder-coated steel housing with integrated brand logo ensures durability and high-quality look.
Pool heater with 4,300 W power: the heat pump is suitable for pools up to 20,000 litres and ensures pleasant water temperatures. With a COP of 6, it works power-saving at only 700 W input.
Easy integration into existing pool technology: connection diameter 32/38 mm for standard swimming pool hoses. It is recommended to use a bypass set for optimal control of water flow.
Compact design with quiet operation: At only 37 dB(A), the heat pump operates pleasantly quietly. The compact dimensions of 48.5 x 33 x 44 cm allow for space-saving installation.

599,99 € 749,00 €(20% Off off)
07

poolomio

poolomio Pool Heat Pump 15-35 m³ NET Inverter 06 to 6 kW Ultra Quiet Pool Heater with WiFi App Energy Efficient (COP 13.6) Heating & Cooling up to -10°C Full Inverter

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Traceable power supply: the modern full inverter technology automatically adjusts the power to the demand. With a COP of up to 13.6, the heat pump generates many times the heat in relation to power consumption - for efficient and cost-saving heating.
THE INTEGRATED DRIVING MODE: Choose flexibly between: Boost mode for fast heating, Eco Silent mode for maximum efficiency and minimum volume & Smart mode for automatic adjustment. So you save energy and enjoy optimally tempered water at all times.
Super strong – all included: vibration dampening silent blocks, condensate connection and 50 mm hydraulic connections. Quick installation without additional accessories - just plug and play. Easy to clean and clean
Smart set-up per app: control your pool heat pump conveniently via WiFi app: set temperature, change modes or program timer – anytime and from anywhere. For maximum comfort without effort.
Reliable even with cool temperatures: with an operating range up to -10 °C, you can significantly extend your pool season. Features such as Smart Defrost and Soft Start ensure safe, stable operation – even in changeable weather.
Efficient heat and cooling: the poolomio inverter heat pump has been specially developed for pools with a pool volume of 15,000 to 35,000 litres. It brings the pool water quickly and efficiently to the desired bath temperature and can also cool if necessary. Ideal for changeable days and hot summers - for maximum bathing comfort from spring to late autumn.
Easy to use: thanks to the innovative poolomio AeroSilent Inverter Core, the pool heater works extremely quietly (only 18-28 dB). Perfect for gardens, patios and residential areas - enjoy your pool without annoying noise.

1.149,00 €
08

POOLEX

POOLEX Nano 3kW Wi-Fi Heat Pump with Intelligent Automatic De-Icer for Small Compact Pools: Ground Pools Partially Recessed or Wooden Pools Quiet and Reversible

10% Off

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

WiFi Smart Heat Pump: Built-in 2.4GHz WiFi connectivity to control temperature, modes and remote operation via the Poolex app, directly from your smartphone.
QUIET & COMPACT Ultra compact format for tight spaces and discreet operation at only 48dB at 1m (less than 30dB at 10m), ideal for residential environments.
Ideal for small pools up to 20 m³: 3 kW pool heat pump for above-ground, wooden or recessed ponds, providing efficient and even heating while reducing energy consumption.
Hot/Cold Function - Heats the water from 10°C outside temperature and cools it even in summer, improves bathing comfort and protects the film at high temperatures.
High performance and durable technology – heating output up to 3.25 kW with a COP of up to 5.50, Twisted Tech Titanium heat exchanger compatible with all water treatments (chlorine, salt, bromine...).
EASY INSTALLATION & HASSLE-FREE OPERATION Plug & Play for quick startup, intelligent automatic defrost and accessories included (differential plug and installation guide)

399,00 € 445,20 €(10% Off off)
09

ALSAVO

ALSAVO Inverboost Elite Pool Heat Pump Inverter 12.5 kW for Swimming Pools up to 55 m³, COP up to 16, Quiet Operation, WiFi & Voice Control

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8.3

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Three heating modes: three different heating modes adapt to different needs - ideal for pools, hot tubs and spas with flexible temperature control.
Quiet operation: At only 40-52 dB(A), the heat pump works quietly in the background - ideal for use in the living area without disturbing everyday life.
Intelligent Wi-Fi & Voice Control: Built-in Wi-Fi allows remote control and monitoring via smartphone, including voice control for hands-free operation.
Fast and stable heating: provides reliable heating of pools of 15-40 m³, with multiple power options and a temperature range of -12 °C to 43 °C.
Environmentally friendly and cost-saving: uses the R32 refrigerant in combination with inverter technology for efficient heating with reduced energy consumption and low environmental impact.
Energy-efficient inverter with COP up to 16: Equipped with inverter compressor and spiral titanium heat exchanger, it offers fast heating with lower energy consumption, with a COP of up to 16.
Easy installation and compact design: space-saving design and user-friendly installation, suitable for various pool setups without complex modifications.
Durable and corrosion resistant: the ABS housing in combination with a titanium heat exchanger ensures long-lasting performance and resistance in outdoor use.

1.313,00 €
10

VARMINPOOL

VARMINPOOL Pool Heat Pump 5.4 kW, Energy-Efficient Pool Heater for Small Pools up to 20 m³, COP 5.5, Quiet, Titanium Heat Exchanger, App Control, Easy Installation

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

WIFI CONTROL AND FLEXIBLE TEMPERATURE SELECTION: The LED control panel and WiFi function allow you to easily adjust the temperature and operating The heat pump supports heating, cooling and auto mode, so you can flexibly adjust the water temperature according to weather, usage and personal bathing habits.
Quiet operation for garden and terrace: with approx. 50 dB(A), the pool heat pump works pleasantly restrained outdoors. So the pool can be tempered for a long time, while family, children or guests continue to use the garden relaxed.
For small garden pools and above-ground pools: this compact pool heater is suitable for small frame pools, above ground pools and private garden pools up to approx. 16-20 m³ matched. It helps to make cool pool water more comfortable and comfortably extend the bathing season on spring days, summer evenings and cooler weekends.
Easy connection with FI protection plug: The pool heat pump is equipped with an FI protection plug and can be conveniently connected to a 220-240V/50Hz socket. With 1 inch water connections, PVC hose adapters and hose clamps, it can be practically integrated into small pool systems.
ENERGY SAVING HEAT FOR SMALL POOLS The Varminpool pool heat pump uses the heat from the ambient air to efficiently heat small garden pools and above ground pools. This makes cool pool water more pleasant, the bathing season can be extended and the energy consumption remains better controlled compared to direct electric heating.

799,99 €