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Thermotec Inverter Vertical Heat Pumps 29kw to 34kw

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Optional Extras

Free UK Delivery Over £50

UK Mainland Only (Excludes Highlands)

All Prices include VAT


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 expertiese to research and design our own range of swimming pool heat pumps.

New for 2018, the Thermotec Inverter range of pool heat pumps really do offer the best in terms of efficiency, performance, reliability and low noise operation.

The Thermotec Inverter 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 Thermotec Inverter 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.

Themotec Inverter Heat Pumps Vertical fan


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


Themotec Inverter Heat Pumps Single fan

Themotec Inverter Heat Pumps 2 fan
Thermotec Inverter Horizontal 12kW to 20kw Thermotec Inverter Horizontal 24 kW


 2. Features

  • 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
  • Brushless 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
  • All models single 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.
  • Optional wifi module - control the heat pump from your smartphone or any web browser
  • 3-Year Warranty

Themotec Inverter Heat Pumps Specifications

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

The sizing guide for a covered pool is:-

Model Kw
Recommended Max Pool Volume
Max Pool Volume
Thermotec Inverter Horizontal 12kw 12kw
Thermotec Inverter Horizontal 17kw 17kw
Thermotec Inverter Horizontal 20kw 19.5kw
Thermotec Inverter Horizontal 24kw  24.2kw
Thermotec Inverter Vertical 29kw 28.6kw
Thermotec Inverter Vertical 34kw 34kw 109m3 136m3


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

Themotec Inverter Heat Pumps Vertical fan


4. COP And Performance

By using the latest inverter technology, the Thermotec Inverter canout 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 Themotec Inverter Heat Pumps Themotec Inverter Heat Pumps Themotec Inverter Heat Pumps
The Thermotec Inverter series is classified class A energy level The Thermotec Inverter Heat pumps have a COP rating of 5 or more TUV testing approved in Germany Thermotec 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 (eg 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.

The Thermotec Inverter 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 remotely see the status of your heat pump and change any settings if required. This greatly enhances the speed and efficiency of our technical support.

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

Themotec Inverter Heat Pumps Wi-Fi

Using 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 nightime 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

8. Specifications



9. Optional Extras:

Wifi Control Themotec Inverter Heat Pumps Wi-Fi See section 7 above
Bypass Kit Please see our Bypass Kits section section for more information.
Winter Cover

The unit comes with a lightweight winter cover, however 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.


10. Payment

We accept all major credit and debit cards, cheques and Bank Transfer

All major credit cards accepted

Note: We offer an additional 1% discount on these prices for payment by debit card or bank transfer.  Just choose bank transfer or debit card as the payment type when you complete the checkout process.

11. 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

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:-

  • UK - First year - parts and labour warranty, Years 2 and 3 - parts only warranty, or return to us in the UK (customer pays transport cost)
  • Europe and outside the UK - 3-Year parts only warranty or return to us in the UK (customer pays transport 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 Warranty Thermotec Inverter Vertical User Manual
Duratech Warranty Thermotec Inverter Wi-Fi User Manual


17. 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

  • Model: Thermotec Inverter Vertical
  • Shipping Weight: 70kgs
  • Manufactured by: HeatPumps4Pools