Duratech Dura+i Inverter Heat Pump Horizontal 10kw to 28kw – All Year Use for all Swimming Pools




Duratech Dura+i Inverter Heat Pump Horizontal 10kw to 28kw – All Year Use for all Swimming Pools

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Dura+i Heat Pumps

1. Description

Our Brand New Dura+i Inverter Heat Pump for all year use and can work down to -10c air temperatures !

The HEAT Dura+i inverter heat pumps are elegant and device fully designed, with a whispering sound level. With a maximum efficiency, reaching a COP of 16,5. There are 5 models available from 10-28 kW.


2. Features

  • 5 sizes available 10kw, 13kw, 18kw, 20kw, 25kw and 28kw in 3 phase only
  • Horizontal Ventilation
  • Whispering sound level of 16 dB(A)
  • COP up to 16,5
  • Easy to use digital control panel
  • Low noise fan, multi speed fan
  • Automatic hot gas defrosting
  • Titanium heat exchanger
  • Operate down to -10 °C ambient air temperature
  • Full Inverter Technology
  • Weight 61-79kg
  • Suitable for pools up to 100m3 of water
  • Desired water temperature can be set to be between 15c and 43c
  • Can be used with an external time clock
  • Includes built in water flow switch – the unit turns off when the circulation pump turns off and back on when circulation pump restarts
  • Requires a flow rate of 3.2 – 6.6m3/hr or more from your pump/filter
  • Eco Friendly R32 refrigerant gas
  • Gives much lower running costs than an electric pool heater
  • Dura+i can heat and cool the water
  • Titanium Heat Exchanger
  • Mitsibushi Compressor
  • 2 Year Warranty

3. Maintaining your heat pump

Your Dura+i Inverter Heat Pump is as good as maintenance-free. In order to guarantee the proper functioning of your heat pump, we have listed a few useful tips. Make sure that the plants around your heat pump are well pruned and free of leaves. This allows the airflow to circulate optimally. Your DURA+i heat pump is fitted with a small pipe that drains the condensed water to avoid water-puddles. Check occasionally that other objects do not obstruct the drainpipe. If the evaporator (the air intake grill on the side or at the back of your heat pump) is dirty, it can be cleaned very easily. Dust particles and leaves that have crept between the slats of your evaporator can easily be removed with a vacuum cleaner. TIP: backwash regularly through your filter pump for optimum water flow. Finally, before hibernating, drain the water from your heat pump and cover it with the matching cover. If in doubt, we are always at your disposal should you have any additional questions.

4. Full Inverter Technology

Popular in the domestic heating and air conditioning sectors, Full Inverter technology adjusts precisely the fan and the compressor, turning the heat pump into a smart pump.

Unlike a traditional heat pump, the Full Inverter compressor starts up gradually. If the set temperature is far from the swimming pool actual temperature, an automatic regulator boosts the heat pump’s capacity for a quick rise in temperature. During swimming season, and to maintain the set temperature, the heat pump operates at reduced power.

This constant operation means that the Full Inverter heat pump operates in a more stable way and preserves the compressor from unwanted starts and stops, resulting in energy savings of over 35%.


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

The sizing guide for a covered pool for May-Sept use is:-

Dura+i Model
KwAbove Ground

Max Pool Volume

(Warmer areas in the UK)

In Ground

Max Pool Volume

(Warmer areas in the UK)

In Ground
Max Pool Volume
(Hotter Climates – Europe)
Dura+i 10i10kw25m330m355m3
Dura+i 13i13kw35m340m370m3
Dura+i 18i18kw42m350m385m3
Dura+i 20i20kw50m360m3100m3
Dura+i 25i25kw62m375m3125m3
Dura+i 28Ti (3 Phase)28kw70m384m3140m3


Please note that these sizes are based on May-Sept use. To ensure that you maintain a good water temperature as long as you cover the pool with the solar cover for as many hours a day as possible (max 4 hours uncovered). The colder the outside air temperature (including night temperatures as this is the coldest time where you will lose most heat) the larger the heat pump size you will need (kw)

6. Additional Fittings

You may need some of our fittings so that you can add this heat pump to your pool, so please take a look at our Hose pipe and Fittings 

Or call us to get some help with these items.


7. Specifications

Note: The Dura+i Inverter Heat Pump requires a pump/filter with a system flow rate of 3.2m3/hr or larger to operate (see below)

Please Specifications tab at the top of the page

Dura+i Heat Pump Specifications

Dura+i Heat Pump Specifications

8. Installation

Installation is very easy and straightforward.

The  Dura+i Inverter Heat Pump is connected to your existing pool pipework

It uses the existing pool circulation pump to pump the pool water through it.

Please see the user manual below for more information on how to install your  Dura+i Inverter Heat Pump


9. Savings

Using the Dura+i Inverter Heat Pump to heat your pool rather than an electric heater will save you money on running costs

The Dura+i Heat Pumps only uses 1.39kw of electricity to produce 16.1kw of pool heat.

If you compare this with an electric pool heater, a 10kw electric pool heater would use 10kw of electricity

The Dura+i Heat Pumps therefore is only less than 1/10 the running cost of an electric pool heater – saving you money!



10. Pool Hose or Pipe

You may need to purchase an additional length of pool hose/pipe to connect from your heat pump to the pool

We sell both 1.5″ and 1.25″ pool hose

Hose and Pipe Fittings

We sell 1.5″ Solid Pool Pipe

Please click on this link to add some to your basket – Hose and pipe fittings

11. Delivery

The price includes FREE UK delivery.

Please allow up to 14 working days for delivery as these are shipped to order.

We can ship the Dura+i Heat Pumps to any country. Please contact us for a shipping quote.

12. Warranty

The Dura+i Heat Pumps heat pumps come with a 2-year warranty

  • 2-years parts warranty on all components in the UK
  •  Warranty subject to the unit being installed in accordance with manufacturer’s instructions.

13. Technical Support

We are happy to provide technical support for all swimming pool heat pumps that we supply. Please call us and we will advise you further.

14. Product Literature

Please see the Product Literature tab at the top of the page for the user manual and brochure

15. Assistance

If you need any assistance or advice as to which model would be best for your pool, please feel free to Contact 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

Dura+i Heat Pump Specifications Dura+i Heat Pump Specifications

Note: The Dura+i requires a pump/filter with a system flow rate of 3.2m3/hr or more to operate. Please check that your pump/filter is adequate before purchasing according to the chart above


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


We accept all major credit and debit cards, Bank Transfer (BACS) and Paypal

All major credit cards accepted

Paypal Credit

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For details of PayPal Credit please click here: PayPal Credit


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

Weight50 kg

10kw, 13kw, 18kw, 20kw, 25kw, 28kw


Single Phase, 3 Phase