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Pro-Line 2kw/3kw Drop In Electric Pool Heater with Digital Thermostat

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Free UK Delivery Over £50

UK Mainland Only (Excludes Highlands)

All Prices include VAT



The Pro-Line digital thermostat and stainless steel element allows the user to quickly and easily install heating on thier pond or pool.

This is a drop-in electric heater which can simply be dropped into the pool water and will provide direct heating.

It does not need a water circulation pump or filter to operate

These pool heaters have an output of 2kw or 3kw.

They come complete with UK 13A plug, digital thermostat to set the desired pool temperature and power cable

They are ideal for:-

  • Hot tubs
  • Swim Spas
  • Baptisimal fonts
  • Small above ground pools
  • Koi ponds
  • etc

As it is an electric heater, it consumes 2/3kw of electricity to produce 2/3kw of pool heat.

A heat pump will offer much lower running costs. If you are interested in a pool heat pump for your above ground pool, please see our SunSpring range of pool heat pumps

Specifically designed to ensure maximum safety, reliability and efficiency, the Pro-line pool heater is user-friendly and offers ‘plug & play’ installation. The thermostat is of the highest quality and accurate to 0.1 degree, it gives you control over the desired pool temperature, while the thermal safety cut-out avoids over-heating.

The element must be fully submersed in the water either in the pond/pool itself or in the filter somewhere.



  • 2 or 3kw Stainless Steel heating element
  • Ideal for above ground pools up to 12' diameter
  • Thermal safety cut-out
  • 230v, 13A load
  • Digital Display
  • Plug and Play




The guide for sizing electric pool heaters is 1.5kw per 1000 gallons of pool water. Or 1.5kw per 4.5m3 of pool water

so for a 20m3 pool, you would need at least a 6.6kw electric heater. 

Note that the maximum size of electric heater that can run from a UK 13A socket is 3kw

Heat pumps have lower running costs, eg our Sunspring heat pumps output up to 10kw of pool heat from only 1.7kw of electricity and so have much lower running costs and more heat output than electric pool heaters and they can plug into  a standard 13A power socket. 


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.


This item is a stock item which can normally be shipped on a next day service.


The price includes FREE UK delivery.

We can ship the Pro-Line Thermostats and heating elements to any country. Please contact us for a shipping quote.


The Pro-line pool heaters come with a 1-year warranty.

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. 


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: Pro-Line 2/3kW drop in heater
  • Shipping Weight: 4kgs
  • Manufactured by: Elecro