Free hot water and greater savings with a solar immersion water heater

Use the energy that you generate from your existing solar PV system to heat the water in your tank

Solar iBoost

Simple to install – easy to use

Get even more value from your existing solar PV system by adding a Solar iBoost immersion controller. Benefit from free hot water, by diverting surplus solar power.

Solar immersion controller unti

Benefits of a Solar iBoost hot water immersion controller

  • Reduced gas bills – throughout the year
  • Capture excess solar electricity
  • Reduced use of your boiler
  • More energy independence
  • Installed in the airing cupboard next to the immersion
  • Works automatically
  • Optional in-home display with remote control
Solar immersion hot water

Request a supply and install quotation

The average household could cut up to £250 per year off their energy bills…


Compatible with all inverters, smart meters and energy monitoring systems

Essentially an automatic power controller, it diverts surplus power to your hot water heater, saving energy and reducing your utility bills.

Solar immerSUN immersion controller

View how the immerSUN controller works...

Request a no-obligation quote

Make the most of your solar PV system with this add-on and save money on your gas bills every month.

Request a quote

Solar immersion free hot water

“The engineers arrived on time to install our solar iBoost and completed the work as agreed – to a high standard. Very happy with the work and would recommend Infinity Energy as a contractor”
Southampton, Verified by Checkatrade 

Solar immersion free hot water