Set logo headers


SET Brand Header
  • Home
  • Products
  • i‑Silent 10‑15‑20‑25 – inverter swimming pool heat pumps
SET i-Silent 10 – inverter swimming pool heat pumps
SET i-Silent 10 – inverter swimming pool heat pumps

i-Silent 10-15-20-25 – inverter swimming pool heat pumps

Swimming pool heat pumps – inverter

SET range of inverter heat pumps are specifically designed for heating small and medium sized outdoor swimming pools and spas.

Offering a very high heat output using very little energy, the i-Silent range stands out for its environmental friendliness and operational cost effectiveness. In fact, their energy consumption is approximately half that of traditional on/off heat pumps and 1/10 of that of gas or electrical pool heaters.

In addition, it does not required a fuel storage tank or high-capacity electrical supply. And it does not emit any CO2 gases, fumes or smells.

Specifically designed for operation down to -10°C, the i-Silent heat pumps will extend your pool season by several months too.

Rapid installation, flexible operation

The i-Silent heat pumps are built with easy installation in mind. In terms of operation, you'll note that the highly efficcient units are very quiet, reliable and safe to use.


Key features

  • Inverter heat pump
  • Average COP 9.7 = 2 x more efficient than on/off heat pumps
  • Eco-friendly refrigerant R32 = 675 GWP, (Global Warming Potential)
  • Increased range of performance ratings from 10.2 to 23.2kW
  • 9-11 dB(A) sound reduction compared to an equivalent on/off heat pump, with ‘Whisper Mode’
  • Multifunction operation functions can be set to heating, heat/cool and cooling
  • Soft start-up
  • Robust housing made of eloxated aluminium
  • Built-in Wi-Fi module
  • Winter protection cover included

New refrigerant gas

  • Has a low GWP (675)
  • Zero ozone depleting potential (ODP)
  • Is F-gas phase-down compliant
  • Requires less refrigerant volume per kW
  • Is easier to reuse and recycle


  • All year heating for outdoor and indoor pools
  • Can operate down to -10°C ambient air temperature
  • High heating performance at lower temperatures – ideal for quick pool heat up at the start of the season
  • Pool heating at altitude
  • Higher cooling capacity
  • Most efficient models – highest COP
  • PoolTherm App is available on Android and iOS


  • Outdoor pools
  • Private pools
  • Spa pools
  • Therapy and wellness pools

Product specifications

Operating temperature range

-10 to 40

Water temperature range

12 to 40

Performance – air 15°C 70% RH, water 26°C


Heating capacity


Performance – air 5 °C, 70 % RH, water 10 °C


Heating capacity


Performance – air 35 °C, 80 % RH, water 28 °C


Cooling capacity


Power supply


Rated input power


Rated input current


Maximum input current


Water flow

4 – 6

Water connection






R32 gas weight


Sound level @ 10m

20.5 – 24.0

Sound level @ 1m

40 – 45

Product size (w x d x h)

980 x 360 x 680



Useful downloads

Where to Buy Icon

Looking to buy?

Get in touch and we will connect you with the right office or dealer.

Looking for Spares Icon

Looking for spares?

The direct route to spare parts for your equipment.

Looking for Servicing Icon

Looking for servicing?

Contact us for help in finding the right service professional near you.

Related products

SET Silent 10-15 – swimming pool heat pumps
Set tab flip

Swimming pool heat pumps

Highly energy-efficient performing heat pumps that can operate at an outside temperature as low as -4°C.

SET 3501 T – swimming pool dehumidifiers
Set tab flip

Wall-mounted/floor-standing swimming pool dehumidifiers

These stylish dehumidifiers blend into any private pool or spa are energy-efficient and quiet.

SET UML 2601 swimming pool dehumidifier
Set tab flip

Swimming pool dehumidifiers

Specifically designed for flexible installation and near-silent operation.

Featured insights

Rsz privatbad ferienhaus 2016 bild 2 rgb web 1
Set tab

How a dehumidifier can help you create the perfect environment

Photo of Lars Brodersen
Lars Brodersen 5 min read
Rsz set shutterstock 97340666 web
Set tab

Learn how to prevent the most common forms of indoor pool damage

Photo of Lars Brodersen
Lars Brodersen 6 min read
SET swimming pool web
Set tab

5 important factors for determining the operating conditions of your pool

Photo of Lars Brodersen
Lars Brodersen 4 min read

Enquire about this product

Complete your details below and the right person from our expert team will get back to you.
For service and spare parts enquiries please include serial number and product type in the Message field.