

Overview
Flux watches what your roof exports and turns it into hot water instead, feeding the cylinder’s immersion heater with whatever the house is not using. In summer most homes can leave the boiler off.
- Load
- 3.6 kW
- Payback
- 3–5 yrs
- Warranty
- 5 yrs
The fitted price covers
- Grid clamp and wiring
- Immersion check
- App set-up
- Priority settings with your battery
The price shown is for the equipment. Fitting is quoted after a free survey, at a fixed price.
Specification
- Max load
- 3.6 kW immersion
- Sensing
- Clamp on the grid supply
- Boost
- Timed or manual, from the app
- Priority
- After the battery, or before it
- Size
- 170 × 170 × 60 mm
- Fitting
- Indoor, near the cylinder
- Typical saving
- £180–£260 a year
- Warranty
- 5 years
Works with
Designed to run beside the Flux Solar Diverter, on the same inverter and the same app.




Home energy assessment
Book a two-hour survey and get a written design at a fixed price.
What could your roof do?
Four questions and a compass give a system size, a share of your bills and a yearly saving.
Talk to us
Questions before a survey?
Mon to Fri 8:00 to 18:00, Sat 9:00 to 13:00