SolarHeating
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Solar iBoost+ Controller
The Solar iBoost+ is the UK's leading PV immersion controller, highly favoured by solar installers for its efficiency and reliability. By diverting excess solar energy to heat your water, it reduces your reliance on your home's boiler, saving you money on water heating costs. Designed for easy installation in under 30 minutes, the Solar iBoost+ is a wise investment for both new and existing solar systems.

Heating Cost Saving
Average reduction
Install Time
Quick & non-invasive
Max Diversion
Immersion heater output
Warranty
Manufacturer backed
Benefits of Solar Heating
Reduce Heating Bills
Divert excess solar energy to heat your water instead of exporting it to the grid, saving significantly on heating costs.
Use Excess Energy
The Solar iBoost+ intelligently diverts surplus solar electricity to your immersion heater, maximising self-consumption.
Quick Installation
Designed for easy installation in under 30 minutes, the Solar iBoost+ works with both new and existing solar systems.
Fully Automatic
Once installed, the system operates automatically -- no manual intervention required. It detects surplus energy and diverts it.
Performance Tracking
Monitor how much free energy you're using to heat your water with the built-in display and optional wireless sender.
Hot Water Year-Round
Even in winter months, excess solar energy can contribute significantly to your hot water needs, reducing boiler usage.
Energy Flow Diagram
The Solar iBoost+ sits between your inverter and immersion heater, automatically diverting excess energy.

Solar Panels
Generate electricity
Inverter
Convert DC to AC
iBoost+ Controller
Detect surplus energy
Hot Water Cylinder
Free hot water
Solar Heating vs Traditional
Heating Savings
Average reduction in hot water costs
Annual Saving
Combined gas and electric savings
Payback Period
Typical return on investment
Frequently Asked Questions
The Solar iBoost+ is a PV immersion controller that detects when your solar panels are generating more electricity than your home is using. It automatically diverts this surplus energy to your immersion heater to heat your water for free, instead of exporting it to the grid.
Have another question?
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MCS Certified
Microgeneration Certification
NICEIC Approved
Electrical Contractor
RECC Member
Renewable Energy Consumer Code
Tesla Powerwall
Certified Installer
EcoFlow Partner
Authorised Installer
TSI Approved
Trading Standards Institute
EPVS Registered
PV Scheme Member
IWA Member
Insulated Wall Association
MCS Certified
Microgeneration Certification
NICEIC Approved
Electrical Contractor
RECC Member
Renewable Energy Consumer Code
Tesla Powerwall
Certified Installer
EcoFlow Partner
Authorised Installer
TSI Approved
Trading Standards Institute
EPVS Registered
PV Scheme Member
IWA Member
Insulated Wall Association
MCS Certified
Microgeneration Certification
NICEIC Approved
Electrical Contractor
RECC Member
Renewable Energy Consumer Code
Tesla Powerwall
Certified Installer
EcoFlow Partner
Authorised Installer
TSI Approved
Trading Standards Institute
EPVS Registered
PV Scheme Member
IWA Member
Insulated Wall Association