Smart Home Energy 
If you boil a kettle multiple times a day and often overfill it, the rapid boil zone markings on this Russell Hobbs model make it easy to boil just one or two cups — saving 45 seconds and about 50% of the energy per boil.
Problem it solves
Reduces electricity waste from boiling more water than needed by marking 1/2/3 cup levels and enabling rapid boil of small quantities in 45 seconds.
Who it's for
Anyone who regularly boils a kettle and wants to stop wasting energy heating full kettles for one cup of tea, especially single-person households or frequent hot-drink makers.
Why we recommend
A good efficient kettle.
Savings
- Typical annual saving
- £6–£12/year depending on usage frequency
- Payback period
- 3–6 years
