EcoEnergyDepot Retrofit Solar Coil

Fit solar panels without changing your water tank with our high performance retrofit coils.

This price includes VAT and delivery to your door.

UK manufactured, our retrofit coils use finned heavy gauge copper and are tested to 7 bar. Beware of cheaper imitations using standard copper as they have a lesser surface area, reducing their capability to get the warmth from the solar circuit and into the cylinder.

How do they work?
The coils are designed to fit into your existing 2.5" immersion heater plug, converting your cylinder into a twin coil tank without the costly expense of extra plumbing. You connect the solar panel flow and return to the copper connections, and the solar panels will start to heat your domestic hot water.

Are they as effective as a twin coil tank?
No. To maximise the output from a solar panel we still recommend the traditional route of a twin coil cylinder, however, they coils do represent one of the cheapest methods of installing solar hot water into an existing house. These coils will produce hot water in the summer months without changing your tank.

What about my immersion heater?
Unless you have two immersion sockets this will have to go.

Can I fit these to both vented and unvented cylinders?
Yes, the coils are suitable for both standard tanks, and the high pressure variant.

Other Lengths
Larger and smaller coils can be made to order. Contact enquiries@ecoenergydepot.co.uk for further information.

Technical Specifications
Material:
16.5mm ID finned copper tube with a heating surface 0.55mtr2
Weight:
1.6kg
Connector:
Standard 2 1/4" immersion heater connection
Length:
27" 69cm
Width:
6cm