Refurbished SunSpring 8kw Pool Heat Pump. Above Ground Swimming Pools up to 22m3

£825.00 (£687.50 exc VAT)

Availability: 1 in stock
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Refurbished SunSpring 8kw Pool Heat Pump Swimming Pool Heater for swimming pools

Refurbished SunSpring 8kwRefurbished SunSpring 8kw


This Refurbished SunSpring 8kw Heat Pump for pools has been fully refurbished and although it has a few marks on it, it is in full working order. Price is reduced from £895 to £825 so save £70 and grab yourself a bargain !

1. Description of the Refurbished SunSpring 8kw

Refurbished SunSpring 8kw Heat Pump for Swimming Pool are Designed to heat Above Ground Pools – Plug and Play!

They are quick to setup and remove in the winter

Comes complete with 3.5m cable and UK 13A plug/RCD and also flexible hose connections so you can be up and running to heat your pool in no time!


Refurbished SunSpring 8kw

Refurbished SunSpring 8kw

Refurbished SunSpring 8kwSunSpring 8kw


Refurbished SunSpring 8kw

2.  Features of the Refurbished SunSpring 8kw

  • Plug and play with fitted cable, UK 13A 3-pin (or Euro 2-pin if preferred) plug and RCD
  • Specially designed for small and medium Pools (thin wall pools, polyester, metal or wooden wall pools <35m3)
  • Comes with hose tail connections to allow easy connection of flexible pool hose for above ground pools.
  • Includes stepped hose tails to accept both 1.5″ (38mm) or 1.25″ (32mm) pool hose.
  • Also includes glue socket connectors for 50mm and 1.5″ solid pool pipe.
  • Will continue to function even at low flow rates
  • Can be used with sand or cartridge filters
  • Requires an air temperature of +8°C and above to operate
  • An exceptionally high COP value (5) for such a small compact heat pump.
  • Easy and fast to install (<15 min). Plug and play
  • User friendly, easy to use colour display with 3 buttons
  • Water flow scale to show water flow rate through the heat pump
  • Safety RCD protection and UK or Euro plug – Plug & play
  • Comes with long 3.5m power cable
  • Using sustainable materials (UV resistant Polymer casing and titanium heat exchanger)
  • Full Flow Technology –  No Bypass needed
  • Uses R32 refrigerant gas for an environmentally friendly operation
  • Plastic rust-resistant polymer casing
  • Note: The Sunspring units do not have a built in flow switch and so must not be allowed to run with no water running through them. We sell a time clock which can be used to turn the unit on/off at specific times if required.


Refurbished SunSpring 8kw

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

Please use the chart below to select the best SunSpring heat pump model for your pool

ModelOutput Kw
Max Pool Volume
SunSpring 5kw5.02kw12m3
SunSpring 8kw8.1kw
SunSpring 10kw10.1kw
SunSpring 12kw12.2kw35m3

However please note that these are the maximum sizes.

You should always oversize a heat pump, so we recommend that you choose the next model up in the sizing chart.

If in doubt about the model required for your pool, then please contact us and we will be happy to assist

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 SunSpring 5kw supports pools up to 12m3 so would be OK for this pool, as we always allow a 20% difference in the pool volume in the pool and what volume the heat pump can cope with.

We always recommend going up in size when choosing a heat pump (where possible) as the results will be far more satisfactory, especially if you are located anywhere north of our location in Essex. All our sizing is based on the South of the UK outdoor air temperatures and any difference to this equation will make a huge difference to performance of the heat pump, and the results that you feel in your pool.


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

5. Easy to Operate – Refurbished SunSpring 8kw

The SunSpring swimming pool heat pumps have a user friendly colour digital display panel

The display panel has three buttons for easy operation

The display has a unique water flow indicator scale to instantly show the water flow rate through the heat pump so that you can be sure that it is sufficient.

The display shows the current pool temperature and the set temperature.

Refurbished SunSpring 8kw

6. Refurbished SunSpring 8kw is Fitted with UK or Euro Plug

All of our Sunspring heat pumps are fitted with a UK 3-pin 13A mains plug/RCD.

We can also supply them with a 2-pin euro plug on request

hot splash pool heat pump UK plug hot splash pool heat pump EU plug
Comes with UK 3-pin plug/RCD (shown above)Optional Euro 2-pin plug/RCD shown above (available on request)
hot splash pool heat pump UK plug

If your outdoor socket is already protected by an RCD, then if you prefer, the fitted RCD/Plug can be unwired and replaced with a standard UK 13A plug.

Note: The Sunspring heat pumps require a 230v, 50hz power supply and therefore are not suitable for use in the USA/Canada (which uses a 110v, 60hz power supply)

7. Hose and Solid Pipe Connections Included with the Refurbished SunSpring 8kw

The SunSpring models come with hose tails to take both 1.25″ (32mm) and 1.5″ (38mm) flexible hoses.

They also include the connectors for 50mm and 1.5″ solid pipework


8. Specifications of this Refurbished SunSpring 8kw

Please Specifications tab at the top of the page:

2022 Models:

Hot Splash HS40 Specifications

2021 Models:

SunSpring 2021 Specifications Chart

9.  Easy Installation of the Refurbished SunSpring 8kw

The SunSpring Swimming Pool Heat Pumps are designed for quick and easy setup and operation.

They come complete with UK (or Euro), RCD/plug and flexible hose connections to suit most above ground pools

Note: The SunSpring05, SunSpring07 and SunSpring10 come with a pre-fitted UK plug/RCD (or Euro plug/RCD on request).

Please read the PDF installation manual below for more information on how to install the SunSpring swimming pool heat pumps

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

Please see our Installation pages for photographs of examples of pool heat pump installations and also the FAQ pages for more information

10. Delivery of the Refurbished SunSpring 8kw

The price includes VAT and FREE UK delivery. (excludes Scotland and some UK postcodes).

We can deliver the SunSpring heat pumps to any country – please contact us for a shipping quote.

Refurbished SunSpring 8kw

Typical setup (customer photo)

Sunspring 5

12. Warranty of this Refurbished SunSpring 8kw

All SunSpring products come with the following warranty:-

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

13. Product Literature on this Refurbished SunSpring 8kw

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

13. Customer Videos

Please view the videos below which were kindly sent in by our customers with Sunspring heat pumps on above ground pools.

14. Water Flow Rates

Please check that your existing pump and filter will deliver the flow rate required for the SunSpring heat pump.

If your pump and filter are too small, then we sell the Krystal Clear pump and filter sets with higher flow rates to suit the SunSpring heat pumps

Please Click Here to see pricing for these pump and filter sets

Sunspring 7 heat pump

15. Automatic Time Clock

If you would like to automatically turn on and off the SunSpring pool heat pumps, then we also sell heavy duty time clocks which are suitable

heat pump time clock switch


Note: The Sunspring heat pumps do not have a built in flow switch and so must not be allowed to operate without water flowing through the unit.

16. Pool Hose

You may need to purchase additional 1 or 2 x 1m length of pool hose to connect from your heat pump to the pool

We sell both 1.5″ and 1.25″ pool hose



17. Bypass Kit

If you do not plan to drain your pool in winter, we recommend using a bypass kit.

This allows you to isolate the heat pump and drain it down whilst keeping the water in the pool

We sell a bypass kit for above ground pools which comes complete with hose-tails, short lengths of pipe and glue etc



Please Click Here for more details and pricing or see our Accessories section

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


Sunspring 7
Sunspring 5


2022 Models:

Hot Splash HS40 Specifications

2021 Models:

SunSpring 2021 Specifications Chart


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


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

All major credit cards accepted

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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

Weight45 kg

5kw, 8kw, 12kw