W'eau Full Inverter 20 swimming pool heat pump - 17.5 kW
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The W’eau Full Inverter 20 heat pump is designed for demanding pool owners looking for a powerful, quiet, and smart solution to heat and cool their pool water energy-efficiently. With an impressive maximum heating capacity of 17.5 kW and an exceptional efficiency of up to 15.8 times the energy used, this heat pump delivers top performance in virtually all weather conditions.
The Full Inverter 20 is suitable for pools of up to 70,000 liters, but is at its best with pools of 35,000 to 52,000 liters. This makes this heat pump ideal for both private pools and high-end spas, and for those who want to extend the swimming season from April through October.
🧠 Smart heating – fully under control
What makes the W’eau Full Inverter 20 unique is the combination of powerful technology and ease of use. Via the large interactive touchscreen, you can set the desired temperature or the weekly schedule in just a few taps. Thanks to the built-in Wi-Fi module, you can easily control everything via your smartphone, wherever you are. The pump also supports external control via home automation or pool controllers thanks to the integrated linkage switch.
A particularly smart feature is the power module: this allows you to see live how much energy the heat pump is consuming. Combine this with the weekly planner and you can optimally align the heating process with your off-peak rates or usage times, for example.
💪 Top-tier technology
Behind the sleek, updated metal housing with a durable plastic coating lies high-quality technology. The pump contains a Mitsubishi Twin Rotary compressor, known for its quiet operation and long lifespan. The twisted titanium heat exchanger is resistant to saltwater, lime, and extreme temperatures. And with the new Better Defrost technology, the heat pump works problem-free even in early spring or late autumn, when other pumps fail due to icing.
🌬️ Heating and cooling – in silence
This heat pump offers not only heating but also active cooling. Ideal for those who prefer not to have lukewarm pool water in the summer. The air is discharged horizontally, giving you more freedom in the setup.
And all this in near-silence: at a distance of 10 meters, it produces only 22 to 34 dB – comparable to rustling leaves. Thanks to the Full Inverter technology, the heat pump constantly adjusts its power based on the requested heat, which is not only more economical but also quieter.
📈 Impressive efficiency
The W’eau Full Inverter 20 extracts an amazing amount of heat from every kilowatt of electricity:
| Outside temperature | Heat output per 1 kWh |
|---|---|
| 15°C | 4.9 – 7.6 kW |
| 26°C | 6.8 – 15.8 kW |
Even at lower temperatures in April or October, the efficiency remains high, allowing your pool to reach temperature faster, and without skyrocketing electricity costs.
🔧 Installation and setup
For optimal operation, correct installation is important:
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Keep at least 80 cm of space at the back and 250 cm at the front for air circulation
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Use a bypass kit (sold separately) to adjust the flow rate
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Install the heat pump before automatic dosing systems or chlorine installations
📱 Four smart modes
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Auto – automatic regulation, heating or cooling
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Eco – maximum energy efficiency without cooling
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Boost – rapid heating in the early season
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Cooling – active cooling during hot summer days
✅ Suitable for:
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Private pools up to 70,000 liters
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Intensive use during a long season (Apr-Oct)
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Saltwater pools and spas
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Users who want to monitor and control remotely
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Those who want to combine comfort, silence, and efficiency
In short: the W’eau Full Inverter 20 is an all-rounder. It is powerful enough for large pools, quiet enough for any garden, smart enough for any household, and economical enough to remain cost-effective in the long term.
Specifications
Specifications
Benefits
Benefits
Disadvantages
Disadvantages
Information and manual
Information and manual
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Read more in our frequently asked questions
What is the delivery time if I order today?
What is the delivery time if I order today?
The delivery time varies per item and is always clearly stated on the product page.
Once your order has been placed, it will be processed and shipped as quickly as possible. Orders that are in stock in our warehouse are often dispatched on the same business day.
Good to know:
- You can find the exact delivery time with each item
- You will receive a track & trace code as soon as your order has been shipped
- Delivery may take a little longer during busy periods
What are the shipping costs?
What are the shipping costs?
Within the Netherlands and Belgium, you pay €8.95 in shipping costs for orders under €75.
For orders of €75 or more, you benefit from free shipping.
For delivery to other countries, shipping costs are calculated automatically during checkout, depending on the destination and the size of the order.
What if my order arrives damaged?
What if my order arrives damaged?
In that case, please contact us immediately. We will ensure the problem is resolved quickly, for example by exchanging the item or sending a replacement part.
We strive to provide a suitable solution within 24 hours, so that you can quickly get back to enjoying your purchase.
Can I order an item that is out of stock?
Can I order an item that is out of stock?
Yes, that is possible. We can order the item from the supplier for you.
In that case, the delivery time is approximately one week on average.

