Poolex Nano B5 pool heat pump
- Stock: In Stock
- Model: Poolex Nano B5-5kW
Why Choose Poolex Nano for Energy-Efficient Heating?
Poolex Nano Pool Heat Pump with WiFi
The smart Poolex Nano New pool heat pump for small pools. Reversible Hot & Cold function, WiFi control, Plug & Play, energy savings up to 80%, compatible with salt-treated pools when the manufacturer water-chemistry limits are followed. Nano B3 and B5 models for pools up to 20-30 m³.

Poolex Nano New
The world's most popular heat pump for small pools – now with smart WiFi control!
Comfort in Any Weather: Hot & Cold
Poolex Nano Reversible can both heat and cool your pool water, maintaining a stable 28°C within its operating range and available heating capacity.
Liner protection: Cooling mode prevents overheating during hot summer days, protecting the pool liner from damage.

Up to 80% Energy Savings
Poolex Nano can deliver over 5 kWh of heat per 1 kWh of electricity under the specified test conditions. This means heating your pool is five times cheaper than traditional methods.


Smart Control and Silence
Quieter than a whisper: Noise level at 10m is below 30 dB(A).
Control everything via the Poolex app:
- ✅ Remote Control: Set the temperature from the app.
- ✅ Real-time Info: Monitor pool temperature anytime.
- ✅ Timer: Schedule heating for cheaper electricity hours.
Technical Specifications
| Feature | Nano B3 (B3) | Nano B5 (B5) |
|---|---|---|
| Recommended Pool Volume | up to 20 m³ | up to 30 m³ |
| Output Power (Air 26°C) | 3.25 kW (COP 5.50) | 5.00 kW (COP 5.40) |
| Noise Level (10m) | Below 30 dB(A) – extremely quiet | |
| Operating Range | -7°C to 43°C (suitable for Northern Europe) | |
| Compressor / Heat Exchanger | GMCC Rotary / Titanium (suitable for saltwater) | |
Frequently Asked Questions
• What is the main difference between Nano B3 and 5.5 models?
Nano B3 is designed for pools up to 20 m³, while Nano B5 is for pools up to 30 m³. The main difference is heating capacity.
• Can the device extend the swimming season?
Yes, the pump operates at outdoor temperatures from -7°C, extending the swimming season.
• Can the heat pump also cool water?
Yes, thanks to the reversible mode, it can heat and cool water, maintaining a stable temperature and protecting the liner.
• Is professional installation required?
No, this is a Plug & Play model. Connect the hoses and plug it in, and it's ready to use.
• Is it compatible with saltwater pools?
Yes, the titanium heat exchanger is fully corrosion-resistant and suitable for saltwater systems.
Official User Manual
Download the Poolex Nano New installation and maintenance guide. It includes detailed technical drawings and setup instructions .
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