Thermotec Penguin Heat Pump 4kw UK Plug and Play Swimming Pool Heater for pools up to 10m3 Summer Season Use

£595.00 (£495.83 exc VAT)

Availability: 29 in stock


Thermotec Penguin Heat Pump 4kw UK Plug and Play Swimming Pool Heater for pools up to 10m3 Summer Season Use

thermotec penguin mini pool heat pumps

1. Description

Thermotec Penguin Heat Pump 4kw mini swimming pool heaters are designed specifically for above ground pools.

The Thermotec Penguin 4kw is the World’s Cutest, portable Plug and Play Pool Heat Pump, your children will love it !

Slash the cost of heating your pool using the Thermotec Penguin air source heat pump for swimming pool rather than an electric heater.

Outputs an incredible 4kw of pool heat from only 0.8kw (800 watts) of electricity to give incredibly low running costs.

Plug and play – runs from a standard 13A power socket and comes complete with cable, RCD and UK plug (UK to EU adaptor supplied)

Designed for small above ground pools up to 10m3 of water (pools with a solar cover)

The Penguin 4kw does not have a defrost and so requires an air temp of +10c and above to operate

Order your Thermotec Penguin pool heat pump now to reserve stock.


The Thermotec Penguin heat pumps for pools are incredibly easy to setup for your pool.

The New Thermotec Penguin outputs up to 4kw of pool heat but only uses 0.78kw of electricity!


thermotec-penguin-hose-connectionsEasy to Use Digital Control Panel

The Thermotec Penguin has a easy to use LED display.

Simply lift up the Penguin’s yellow beak to access the control panel.

The beak cleverly protects the control panel from the rain and the weather.

Simply use the up and down arrow keys to set your desired pool temperature and the Thermotec Penguin will automatically turn on and off to maintain the desired temperature


Control Your Pool Temperature from a Smartphone

The Thermotec Penguin comes complete with Bluetooth connectivity

This allows you to control the Thermotec Penguin from any Apple or Android smartphone using the Aqua Temp app


The app allows you to do the following:-

  • See the current pool water temperature
  • Adjust the set temperature of your pool water
  • Turn the heat pump on and off
  • And much more…


Supplied with UK 3-PIN Plug and inline RCD

Built in Water Flow Switch

The Thermotec Penguin has a built in water flow switch.

The water flow switch automatically shuts down the heat pump when there is no (or insufficient) water flow and re-starts it when sufficient water flow is resumed.

This allows the Thermotec Penguin to be used in conjunction with a time clock on the pool circulation pump.

When the circulation pump turns off, the Thermotec Penguin will shut down and when the circulation pump re-starts, the Thermotec Penguin will also re-start.


(Note: the Penguin should be removed from the plywood base when in use as this is only for transport purposes)

Using the Thermotec Penguin heat pump to heat your pool rather than an electric heater will save you money on running costs

The Thermotec Penguin only uses 0.78kw of electricity to produce 3kw of pool heat.

If you compare this with an electric pool heater, a 3kw electric pool heater would use 3kw of electricity

The Thermotec Penguin therefore is only less than 1/4 the running cost of an electric pool heater – saving you money!

intex pools - hot splash heat pump

2. Features

  • Outputs up to 4kw of pool heat from only 0.78kw of electricity used
  • Brand new design
  • Bluetooth control from a Smartphone
  • Dimensions – 50 x 52 x 56cm (l x w x h)
  • The 4kw model does not have a defrost function and so requires an air temp of over +10c to operate
  • Built in water flow switch
  • Suitable for pools up to 10m3 of water
  • Desired water temperature can be set to be between 15c and 43c
  • Simple “plug and play” heat pump
  • Comes complete with 4 meter power cable and with a UK plug/RCD (adaptor)
  • 1.25″/1.5″ (32/38mm) water connections for standard above ground flexible pool hose
  • Suitable for all above ground pool types eg Intex, Bestway, Doughboy etc..
  • 2 x Metal jubilee hose clips included
  • Operates with outside air temperatures from +10c and above
  • Requires a minimum water flow rate of 1.5m3 an hour from your pump/filter
  • Eco Friendly R32 refrigerant gas
  • No bypass required
  • Easy to operate – simply lift the beak to access the buttons
  • 3 Button LED display with Bluetooth function (Jan 2022) – simply set the pool temperature required and the Thermotec Penguin will tun on and off as required to maintain the desired pool temperature.
  • Gives much lower running costs than an electric pool heater, 1kw of electricty used outputs approx 4kw of pool heat to your pool !
  • Titanium Heat Exchanger
  • Comes with user manual, drainage, plug, water connections, jubilee clips, power cable, UK adaptor
  • 2-Year Warranty

3. Sizing & Models

How to Calculate Your pool Water Volume:

You can easily calculate the water volume in your pool as follows:

Round Pools

To calculate the volume of a round pool, you can use the formula

Pool Volume = 3.14 x radius x radius x depth

  1. Measure the diameter of the pool in metres
  2. Half the diameter to give the radius of the pool
  3. Multiply 3.14 x radius x radius x pool depth


A 12′ (3.66 m) diameter round above ground pool with a depth of 0.8m

Diameter = 12′ x 0.305 = 3.66m

Radius = 3.66 / 2 = 1.83m

Volume = 3.14 x 1.83 x 1.83 x 0.8m = 8.4 m3

The Penguin supports pools up to 10m3 so would be ok for this pool

Note: These sizings assume that the pool will be covered with a solar cover when not in use. All pools should have solar covers.

Rectangular Pools

Pool volume = length x width x depth


6m x 4m pool, 0.8 m deep = 6 x 4 x 0.8 = 19.2 m3

Maximum for Penguin= 10m3 so this would be too large – look at our SunSpring heat pumps

Typical Pool Sizes and Volumes

8′ x 30″ Intex above Ground pool = 3.6 m3 – Thermotec Penguin OK !

10′ x 30″ Intex above Ground pool = 5.5m3 – Thermotec Penguin OK !

12′ x 36″ Intex above Ground pool = 9.6 m3 – Thermotec Penguin OK !

4. Specifications


5. Optional Extras

The Thermotec Penguin comes complete with screw in hosetails to take either 32mm (1.25″) or 38mm (1.5″) standard flexible pool hose for above ground pools – ie Intex/Bestway etc..

Flexi Hosehose-1-5-inch-on-reel.jpgYou may need to purchase an additional length of pool hose to connect from your heat pump to the pool. We sell both 1.5″ and 1.25″ pool hose

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

the Thermotec mini can also be connected using Intex hose with white nuts on the ends

Jubilee ClipsJubilee clipsStainless Steel Jubilee Clips 30-50mm
Intex Hose Adaptor BIntex Hose Adaptor BIntex Adaptor B & Bestway to connect 38mm hose to 32mm pools (you will need these if you wish to use the 38mm Intex Hoses with nuts on the end)

6. Product Literature

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

Thermotec Penguin Heat Pump Brochure
Thermotec Penguin Heat Pump User Manual

7. Warranty & Support

The Thermotec Penguin heat pumps come with a 2-year warranty

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

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.

8. Delivery

Thermotec Penguin pool heat pumps are in stock in the UK. They can then be shipped to any UK address on a 1 – 3 day delivery service.

The price includes FREE UK delivery.

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

9. Installation


Installation is very easy and straightforward.

The Thermotec Penguin 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 under the product literature tab at the top of the page, for more information on how to install your Thermotec Penguin heat pump

10. Videos


15. Product Literature

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


Please also see the Product Literature tab at the top of the page


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


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

Weight35 kg
Dimensions50 × 52 × 56 cm



Single Phase