Thermotec Inverter Pro Vertical Swimming Pool Heat Pumps 29kw to 34kw with Wifi


GTIN: 0796562385456


New Thermotec Pro Inverter Vertical Models with Wi-Fi Heat Pumps –  Sizes 29kw and 34kw

thermotec inverter pro vertical swimming pool heat pump

Status: Sept 2023: The Thermotec Inverter Pro Vertical models with Wifi 29kw and 34kw models are now in stock in the UK. Order now while stocks last. The 34kw single phase model is the most powerful single phase pool heat pump available in the UK !

All models include a FREE wifi module. Available in 29kw and 34kw single phase and 34kw 3-phase models

1. Description

HeatPumps4Pools are the leading specialist supplier of swimming pool heat pumps. We have many years of experience in the market and have used our expertise to research and design our own range of swimming pool heat pumps.

The New Thermotec Inverter Pro Vertical range of pool heat pumps really do offer the best in terms of efficiency, performance, reliability and low noise operation.

The new models have a redesigned case style and colour.

The New Thermotec Inverter Vertical range are fully inverter driven. This means that they automatically adjust the speed of the fan and compressor to precisely match the heat demand from the pool.

The ability to adjust the output of the heat pump allows the New Thermotec Inverter Pro Vertical to deliver greatly reduced running costs with COPs of up to 13. This means that for every 1kw of electricity used by the heat pump, 13kw of heat is delivered to the pool. This delivers reduced running costs compared with other heat pumps on the market

In addition the inverter technology has a reduced electrical startup requirement, making them ideal for properties with a sensitive or limited electrical supply.

They have larger evaporators (fins) which gives more surface area to extract heat at low air temperatures. This allows the Thermotec Inverter to produce more heat than competitor heat pumps at low air temperatures, making them the best choice for koi ponds and indoor pools which are used all year round. The larger surface area also gives higher efficiency and reduced running costs all year round.

thermotec inverter pro vertical swimming pool heat pump front

  • The Thermotec Inverter Pro 34kw single phase is the most powerful single phase heat pump available in the UK. Ideal for larger pools.
  • Fully inverter driven with variable speed fan and compressor to deliver the lowest running costs with maximum heat output
  • High efficiency with COPs of up to 13. This means that for every 1kw of electricity used by the heat pump, 13kw of heat is returned to the pool.
  • The desired water temperature can be adjusted in steps of 0.1  °C.
  • Equipped with an easy to use 5-inch colour touch screen display / control panel.
  • Remote control and monitor your heat pump via an app on your smartphone
  • Remote support from HeatPumps4Pools via the wifi module
  • Top quality Mitsubishi variable speed inverter compressor
  • Brush-less variable speed DC fan motor – very efficient with extremely quiet operation
  • Control panel is lockable to prevent tampering with the pool set temperature (useful for rented properties)
  • Display shows temperature & power consumption curves to monitor the performance of the heat pump
  • Six different models:12kw, 17kw, 19.5kw, 24.2kw, 28 kw and 34kw
  • Models include single and 3 phase power (ie 220v to 240v)
  • Soft start with reduced electrical startup requirements for properties with sensitive or limited power supplies
  • Low noise, variable speed fan.
  • Corrosion resistant case
  • Microprocessor controlled
  • Automatic hot gas defrosting.
  • Titanium heat exchanger – resistant to corrosion from chlorine or salt pools.
  • Operates in air temperatures as low as -15  °C.
  • Capable of heating and cooling, all year round.
  • Wifi module included FREE OF CHARGE – control the heat pump from your smartphone or any web browser
  • Refrigerant – R32 in all models except 34kw single phase, which uses R410a refrigerant
  • 3-Year parts and labour warranty

Themotec Inverter Heat Pumps Specifications Picture

thermotec inverter pro vertical swimming pool heat pump - back

3. What size heat pump do I require for my pool?

The sizing guide for a covered pool is:-

Recommended Max Pool Volume
 Absolute Max Pool Volume
Thermotec Inverter Horizontal 9kw9kw30m345m3
Thermotec Inverter Horizontal 12kw12kw
Thermotec Inverter Horizontal 17kw17kw
Thermotec Inverter Horizontal 20kw19.5kw
Thermotec Inverter Horizontal 24kw24.2kw
Thermotec Inverter Vertical 29kw28.6kw
Thermotec Inverter Vertical 34kw34kw109m3136m3
Thermotec Inverter Vertical 34kw (3 Phase)34kw109m3136m3

All Thermotec Inverter heat pumps are for single or 3 phase power (ie 220v to 240v) to suit most properties


(Please note this picture shows the old colour casing)

thermotec inverter pro vertical swimming pool heat pump - top view

4. COP And Performance

By using the latest inverter technology, the Thermotec Inverter can out perform traditional on/off type heat pumps as well as many other inverter driven models.

Even as the outside air temperature falls, the Thermotec Inverter will still perform well, delivering heat to your pool.

The Thermotec Inverter heat pumps can work well with outside air temperatures as low as -15c

The COP (Coefficient of Performance) is the ratio of the amount of heat (in kw) that the heat pump delivers to your pool compared to the electricity that the heat pump uses (in kw)

By using the latest inverter technology, the Thermotec Inverter has COPs up to 20.04. This means that in these conditions, 1kw of electricity consumed by the heat pump will output 20.04kw of heat to your pool !

Themotec Inverter Heat Pumps EnergyThemotec Inverter Heat Pumps COPThemotec Inverter Heat PumpsThemotec Inverter Heat Pumps
The Thermotec Inverter series is classified class A energy levelThe Thermotec Inverter Heat pumps have a COP rating of 5 or moreTUV testing approved in GermanyThermotec Inverter Heat pumps have COP ratings of up to 20.04

Themotec Inverter Heat Pumps COP Ratings

5. Extremely Quiet Operation

The Thermotec Inverter range work very silently thanks to a unique internal ventilation system and the inverter technology.

Both the fan and compressor automatically adjust their speed to match the pool heat demand, therefore once the pool is up to temperature, the unit can operate with reduced power consumption and noise.



6. Colour Touch Screen Controls

The Thermotec Inverter have a unique colour backlit touch screen control/display panel

This provides easy to use controls

Themotec Inverter Heat Pumps Colour display

The display will show:-

  • The current pool water temperature
  • The mode (e.g. heating or cooling)
  • If the timer function has been set
  • If the fan is operating
  • The current time and date
  • The outside ambient temperature
  • If there is a fault, a fault code is displayed to explain the problem

In addition, the display can show:-

  • A graph of the temperature of the pool over time so that you can see how the pool temperature is being maintained by the Thermotec Inverter heat pump
  • A graph of the power consumed by the heat pump over time

The colour display is backlit making it easy to read in low light conditions and also in bright sunlight


7. Wi-Fi Control

The optional Wi-Fi module allows the Thermotec Inverter to be monitored and controlled from a smartphone or any internet web browser.

There are two versions of the wifi module:-

thermotec inverter wifi modulenew-wifi-module-with-4-leds-pic2

 Wifi Module with 1 LED (Before Aug 2020)

Uses the Inverter Temp App

 Wifi Module with 4 LEDs (After Aug 2020)

Uses the Aqua Temp App

The Aqua Temp  App is available for both Android and iPhone

The Wi-Fi module simply connects to the heat pump via the supplied cable

The module is then joined to your wi-fi network to allow it to communicate with the internet

The wifi module also allows HeatPumps4Pools to provide remote monitoring and support of your heat pump with the ability to change any settings if required. This greatly enhances the speed and efficiency of our technical support.

The Aqua Temp app can then be installed into your smart phone to give full remote control and monitoring of your pool heat pump.

aqua-temp-appUsing the app you can:-

  • Turn the heat pump on and off
  • See the current pool water temperature
  • Alter the desired pool set temperature
  • Set the timer
  • View the pool temperature history graph
  • Change the mode of the heat pump from heating, cooling and auto modes
  • Put the heat pump in and out of silence mode (eg for night time use)
  • Show the weather temperatures and information
  • Display any error codes and messages
 The Thermotec Inverter Mobile Phone App

Themotec Inverter Heat Pumps Wifi

Note: A a wifi signal is required at the location of the heat pump in order for the wifi module to be able to connect to your wifi.

Please test the strength of the wifi signal eg with a laptop or your smart phone before purchasing the wifi module.

If you do not have a wifi signal at the heat pump’s location, then you can either:-

  1. Use a wifi signal extender to boost the signal in the area of the heat pump
  2. Use power LAN adaptors plugged into mains sockets in the house and the pool shed. You can then connect a wifi extended to the powerlan adaptor in your pool shed.

Please contact us if you need assistance with the wifi configuration

Please also see the user manual for the Wi-Fi module below for more information and installation instructions


(Please note this picture shows the old colour casing)

7a. Thermotec Inverter 3G/4G Mobile Data Module (DTU)


If you do not have wifi coverage where the heat pump is located, we also have a 3G/4G mobile data module

This module connects to the 3G/4G mobile data network and allows the heat pump to be controlled using the Aqua Temp app on a smartphone

It is ideal for locations where wifi coverage is not available where the heat pump is located.

The module includes a SIM card primarily for the EE (Orange) network but it can work with all mobile networks within Europe

It includes enough data for at least 5-years of continuous use (and can be renewed afterwards)

The unit is very easy to install

It is IP68 waterproof rated and can be installed on the outside of the heat pump case

Click Here for more details on the 3G/4G Module

8. Specifications

Thermotec Inverter Pro Specifications 29kw

Thermotec Inverter Pro Specifications 34kw
Thermotec Inverter Pro Case Sizes

9. Optional Extras:

Wifi Controlaqua-temp-appSee section 7 above regarding the optional wifi module
Bypass Kit Please see our Bypass Kits section section for more information.
Winter Cover We offer a heavy duty cover which will give you added and extended protection against the winter weather

Please see our Winter Cover section section for more information.

Remote Display KitThe Remote display kit allows the digital display panel to be located away from the heat pump. The kit includes a 20m cable and a mounting box for the display.

It is also possible to have two displays operating with the Thermotec Inverter range.

Click here for details of the remote display kit

10. Installation

Installation is straightforward. We can provide advice on installing your heat pump. We can also offer an installation service if required.

We recommend that a bypass is installed to allow the heat pump to be drained in winter if not in use. We sell bypass kits if required.

Please see our Installation Tips pages for information on how to install your heat pump. Our Photo Gallery also has photograph examples of pool heat pump installations and please also see the FAQ pages for more information

11. Multiple Heat Pump Installation

It it also possible to install multiple heat pumps for larger pools to give the required capacity


Two Thermotec Inverter 34kw heat pumps on an outdoor pool of approx 265m3 water volume (Please note this picture shows the old colour casing)

12. Availability

The range of Thermotec Inverter pool heat pumps are now in stock in the UK and can be shipped to any UK address on a 1 – 3 day delivery service.

13. Delivery

The price includes FREE UK delivery.

We can ship the Thermotec Inverter heat pumps to any country. Please contact us for a shipping quote.

14. Warranty

The Thermotec Inverter heat pumps come with a 3-year warranty on all components and 5-year warranty on the compressor and heat exchanger:-

  • 3-year parts & labour warranty on all components
  • 5-year warranty on the compressor and heat exchanger (parts only after year 3)
  • UK: 3-years parts and labour warranty
  • Europe and Outside the UK: Warranty is parts only warranty or return to us in the UK (customer pays transport cost). If spare parts are required, they will be sent free of charge to a UK address. If they are to be shipped outside the UK, the customer pays the international shipping cost

We recommend that you retain the pallet and packaging that the heat pump was delivered with in case you need to return the unit to us for repairs under the warranty.

The warranty will not apply where the heat pump has been installed incorrectly, or has been damaged by freezing

15. Technical Support

We are happy to provide technical support for all Inverter+ swimming pool heat pumps that we supply.

We hold spare parts to support all Thermotec Inverter heat pumps both during and after the warranty period

16. Product Literature

Please click the links below to download pdf brochures for these products

Duratech WarrantyThermotec Inverter Pro Vertical User Manual 29kw & 34kw 3-phase (R32)
Duratech WarrantyThermotec Inverter Vertical User Manual 29kw & 34kw 3-phase (R32)
Duratech WarrantyThermotec Inverter Vertical User Manual (34kw single phase R410a)
Thermotec Inverter Wi-Fi User Manual – Aqua Temp App – V3
Thermotec Inverter Wi-Fi User Manual – Aqua Temp App  – V2
Thermotec Inverter Wi-Fi User Manual – Inverter Temp App –  V1


Please also see the Literature tab at the top of the page for the Brochure and User Manual downloads.

17. Product Videos

Overview of the 34kw Vertical Thermotec Inverter Swimming Pool Heat Pump

How to install the wifi module on the Horizontal Thermotec Inverter swimming pool heat pumps

(Note: there is a newer wifi module and app from the one in the video, the new module uses the “Aqua Temp” app)

We also have the Thermotec Inverter Pro 9kw, 12kw, 17kw, 20kw and 24kw horizontal fan single phase models. Please Click Here to see details and pricing

Thermotec Inverter Heat PumpThermotec Inverter Heat Pump
New Thermotec Inverter Horizontal 12kW to 20kwNew Thermotec Inverter Horizontal 24 kW

18. Assistance?

If you need any assistance or advice as to which model would be best for your pool, please email us

for more information, also see our FAQs page

All items sold in accordance with our terms and conditions

For all enquiries, please contact us at enquiries@heatpumps4pools.com


Thermotec Inverter Pro 2023 Models:

Thermotec Inverter Pro Specifications 29kw


Thermotec Inverter Pro Specifications 34kw  Thermotec Inverter Pro Case Sizes



Thermotec Inverter Models (old case 2017-2023):




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The prices shown include FREE UK delivery for orders over £50 or £6.50 for orders under £50

We can ship to any country. Please contact us for a shipping quote.

The lead time on most items is normally on a 1-2 day delivery,  subject to availability. Please call to check availability.

Additional information

Weight75 kg

29kw, 34kw


Single Phase, 3 Phase