Poolex Nano Ultra Compact Heat Pump with Wi-Fi for Above-Ground Pools
| Pool Size Capacity | Up to 20m³ (for 3.5kW), Up to 30m³ (for 5.5kW) |
|---|---|
| Model / Power | Nano 3.5 (3.5kW), Nano 5.5 (5.5kW) |
The Poolex Nano Wi-Fi Heat Pump is a compact and energy-efficient solution for heating above-ground pools up to 30m³ with smart control.
Price range: £399.00 through £518.00 (inc VAT)
Poolex Nano Ultra Compact Pool Heat Pump
Compact and energy-efficient pool heating for small above-ground pools
The Poolex Nano range has been developed to provide simple and effective pool heating without requiring complicated installation. Its Plug & Play operation allows quick setup using standard 32mm and 38mm pool hose connections, making it perfect for domestic above-ground swimming pools.
Despite its compact footprint, the Nano heat pump range delivers impressive heating efficiency with a maximum COP of up to 5.5, helping reduce energy consumption and running costs while maintaining comfortable pool temperatures.
Integrated Wi-Fi connectivity allows users to control settings remotely using the Poolex mobile app, offering easy access to temperature adjustment, operating modes, and performance monitoring from anywhere.
Designed for Small Spaces and Quiet Operation
The Poolex Nano heat pumps are specifically engineered for environments where space is limited. With dimensions of only 440mm x 400mm x 390mm, the units fit discreetly beside small pools, on patios, or within compact garden areas.
Operating at less than 30dB at 10 metres, the Nano range provides whisper-quiet performance that will not disturb surrounding outdoor spaces, making it ideal for residential use.
Efficient Heating with Automatic Defrost
The Nano series uses high-quality GMCC compressors together with a Twisted Tech Titanium heat exchanger to maximise heating efficiency and durability.
The titanium heat exchanger offers excellent resistance against chlorine and salt-treated pool water, ensuring long-term reliability in a variety of pool environments.
Automatic defrost functionality allows the heat pump to operate effectively in colder conditions down to -7°C, helping extend the swimming season beyond the summer months depending on pool size and environmental conditions.
Heating, Cooling and Automatic Modes
The Poolex Nano range includes multiple operating modes for year-round flexibility:
- Heating mode for maintaining comfortable swimming temperatures
- Cooling mode for reducing excessive water temperatures during hot weather
- Automatic mode for intelligent temperature regulation
The adjustable heating range from 15°C to 40°C allows precise water temperature control for different pool requirements.
Simple Plug & Play Installation
The Poolex Nano heat pumps are designed for quick installation and easy operation. Each unit is supplied with hose connectors, clamps, and anti-vibration pads for straightforward setup.
Suitable for standard 32mm and 38mm pool hose systems, the units can be connected easily without complex plumbing work.
Available Models
Poolex Nano 3.5
The Nano 3.5 model is ideal for smaller above-ground pools requiring compact and economical heating performance.
Key specifications include:
- Maximum heating capacity (A26/W26): 3.25kW
- COP up to 5.5
- Power input: 0.59kW
- Weight: 25kg
- Noise level: under 30dB
Poolex Nano 5.5
The Nano 5.5 model offers increased heating capacity for larger small pools while maintaining compact dimensions and efficient performance.
Key specifications include:
- Maximum heating capacity (A26/W26): 5.0kW
- COP up to 5.4
- Power input: 0.93kW
- Weight: 32kg
- Noise level: under 30dB
What’s Included
- Poolex Nano Heat Pump
- Two hose connectors
- Hose clamps
- Four anti-vibration pads
- User manual
Key Benefits
- Ultra compact design ideal for small spaces
- Quiet operation below 30dB
- Built-in Wi-Fi connectivity
- Plug & Play installation
- Automatic defrost functionality
- Heating, cooling, and automatic modes
- Energy-efficient performance with high COP
- Titanium heat exchanger resistant to chlorine and salt
- Suitable for extended seasonal use
- Compatible with standard above-ground pool hose systems
Technical Specifications
Type: Inverter heat pump (Ultra compact pool heater)
Models: Nano 3.5, Nano 5.5
Maximum Heating Capacity (A26/W26): 3.25kW / 5.0kW
Power Input (A26/W26): 0.59kW / 0.93kW
COP (A26/W26): 5.5 / 5.4
Maximum Heating Capacity (A15/W26): 2.19kW / 3.36kW
Power Input (A15/W26): 0.55kW / 0.81kW
COP (A15/W26): 3.95 / 4.16
Maximum Power Input: 1.25kW / 1.75kW
Voltage: 230V
Refrigerant: R32
Noise Level: <30dB
Wi-Fi: 2.4GHz
Construction: Corrosion-resistant outdoor housing (ABS)
Heat Exchanger: Titanium (pool-grade)
Dimensions: 440 × 400 × 390mm
Weight: 25kg / 32kg
Water Connection: 32mm
Installation: Plug & play (RCD plug fitted, above-ground pool compatible)
Warranty Information
The Poolex Nano range includes comprehensive manufacturer warranty coverage:
- Heat Pump: 2 years
- Compressor: 5 years
- Titanium Coil: 15 years against chemical corrosion
Understanding COP Efficiency
COP stands for Coefficient of Performance and measures the heating efficiency of a heat pump.
A COP of 5.5 means that for every 1kW of electricity consumed, the heat pump can produce up to 5.5kW of heating output. Higher COP values help reduce running costs and improve energy efficiency.
Important Notes
- Suitable for small above-ground swimming pools
- Wi-Fi requires a 2.4GHz network connection
- Performance may vary depending on weather conditions and pool size
- Professional electrical installation is recommended
- Seasonal performance depends on ambient air temperature



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