Thermotec Eco Fun Horizontal Swimming Pool Heat Pumps 13.5kw to 15kw Extended Season Use


GTIN: 0796562385616


Thermotec Eco Fun On/Off Horizontal Heat Pumps for swimming pools.

thermotec eco fun pool heat pumps

Summer Offer 2023: These units have been reduced in price today for a limited period while stocks last – so grab yourself a bargain!!!


Please call us if you need any assistance to select the best size and type of heat pump for your pool

1. Description

The Thermotec Eco Fun range of pool heat pumps offer a low cost with high value for money.

The Eco Fun heat pumps are On/Off heat pumps. This means that when operating the fan and compressor run at one speed (100%). The fan and compressor turn on and off as required to maintain the desired pool temperature using the inbuilt water temperature thermostat.

This range is ideal for above ground or in-ground pools that you want to use for an extended season.

The Thermotec Eco Fun deliver greatly reduced running costs with COPs of up to 5.98. This means that for every 1kw of electricity used by the heat pump, 5.98kw of heat is delivered to the pool. This delivers reduced running costs compared with electric heaters on the market.

2. Features

New improved performance, better COP, electronic expansion valve system

  • Outside Air Temperature Operating range -5 to 43 degrees
  • Suitable for above ground and in-ground pools
  • High efficiency with COPs of up to 5.98
  • On/Off Models
  • This heat pump can heat or cool the pool
  • Hot gas defrost cycle.
  • Titanium heat exchanger – resistant to salt and chlorine
  • Digital control panel on all models
  • Quiet running
  • Set Temperatures for this model are from 10-40 degrees
  • R32 refrigerant gas
  • Plastic corrosion resistant case
  • Water flow switch
  • 2-Year warranty
  • Designed & Built For Long Life & Reliability
  • Note: these heat pumps do not come with a power cable or plug. The require a heavy duty piece of round flex cable with a plug on the end. Please purchase the plug and play cable kit to make these into a plug and play unit.
  • Note: These heat pumps come with 50mm Unions for the use with 1.5″ Solid pipework – with this you will need to purchase 2 x 50mm to 1.5″ Adaptors plus a bottle of glue as listed on the optional extras.
  • For above ground pools please choose 2 x 1.5″ Threaded Hosetail’s and 2 x Jubliee clips which are available on the listing as an optional extra. This will allow you to connect 32mm/38mm flexi hose.

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

The sizing guide for an in-ground covered pool is:-

ModelKwAbove Ground Pools

Max Pool Volume

In ground Pools

Max Pool Volume

In Ground Pools
Absolute Max Pool Volume
Thermotec Eco Fun Horizontal11.5kw35m3
Thermotec Eco Fun Horizontal13.5kw45m3
Thermotec Eco Fun Horizontal15kw50m3


Please note if you have an above ground pool, please increase the size of the heat pump as there will be more heat loss from the sides of the pool than an in-ground pool.

3b. The sizing guide for koi ponds is:-

For a koi pond that is heated all year round with a winter temperature of around 12c and a summer temperature of around 20-22c, we recommend the following sizing:-

Max Pond Volume
Thermotec Eco Fun 11.5kw
7800 gallons
Thermotec Eco Fun 13.5kw
9500 gallons
Thermotec Eco Fun 15kw
10,500 gallons

(Note: This assumes that the pond is covered in winter and that a temperature of +12c is to be maintained over winter)

For more information on using a heat pump on a koi pond, please see our Koi Pond Heating Guide page. This includes customer videos showing a Thermotec Inverter heat pump being installed and running on a koi pond


4. COP And Performance

The Thermotec Eco Fun heat pumps can work well with outside air temperatures as low as -5c

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

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)

5. Extremely Quiet Operation

The Thermotec Eco Fun range work very silently thanks to a unique internal ventilation system




6. Controls

The Thermotec Eco Fun has an LCD touch-screen display

The display has a protective flap to protect it from the weather and UV rays.




The display shows:-

  • The current pool water temperature
  • The mode (e.g. heating or cooling)
  • Clock/time
  • 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

7. Specifications


Please also see Specifications tab at the top of the page

8. Electrical Requirements

ModelMax CurrentBreaker SizeRuns from 13A UK Plug?
13.5kw13.4A16A Type DNo
15kw13.4A16A Type DNo

9. Mounting Feet and Unions Included

The Thermotec Eco Fun horizontal range of heat pumps come with:-

  • 2 x Water connection unions (with 50mm glue socket outlets – 1.5″ adaptor bushes available as an option)
  • 4 x Rubber mounting feet (heavy duty mounting blocks available as an option – see below)

10. Water Connections

These heat pumps come with grey 50mm unions which you will use with 2 x 50mm/1.5″ Adaptor bushes if you wish to use 1.5″solid pipe and glue

50mm-to-1-5-inch-pipe-adaptor-pic1 Glue PVC or ABS, Blue colour 0.25L with Brush

If you wish to connect flexible hose to the heat pump for above ground pools, then please also purchase: 2 x 1.5″ Threaded Hosetail’s and 2 x Jubliee clips which are available on the listing as an optional extra.

threaded-hosetail-pic1stainless steel jubilee clip


11.Optional Extras:



Heavy Duty Mounting Feet Thermotec-Inverter-Horizontal-rear.jpgThese heat pumps come with rubber mounting feet (see photo above).

Alternatively you can purchase these heavy duty Mounting Feet.

These raise the unit off the ground by approximately 100mm, and also help to reduce vibration.

Please see our Mounting Feet and Slabs section for more information.

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.

Plug and Play Cable KitHeat pump plug&play-cable kitWe offer a plug and play cable kit, this allows the heat pump to be plugged into a standard 13A outdoor socket

Please see our Plug & Play Cable Kit section for more information.

12. 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

Please contact us for further advice

13. Availability

The range of Thermotec Eco Inverter pool heat pumps can be shipped to any UK address on a 3 day delivery service when in stock. Please check the listing above to see if the model you require is in stock.

You can pre-order from the next shipment arriving (details should be updated at the top of this listing) as we have regular deliveries, or pay a deposit to reserve a unit – please call us to take advantage of this option.

14. Delivery

The price includes FREE UK delivery.

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

15. Warranty

The Thermotec Eco Fun heat pumps come with a 2-year warranty on all components and 5-year parts warranty on the compressor and heat exchanger:-

  • 2-year parts and labour warranty on all components
  • 5-year parts warranty on the compressor and heat exchanger
  • 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



16. Technical Support

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

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

17. Product Literature

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

Thermotec Eco Fun Horizontal User Manual

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

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


Electrical Requirements

ModelMax CurrentBreaker SizeRuns from 13A UK Plug?
11.5kw13.1A16A Type DYes
13.5kw13.4A16A Type DNo
15kw13.4A16A Type DNo


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

Thermotec Eco Fun Horizontal User Manual


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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

Weight70 kg

13.5kw, 15kw


Single Phase