Economy 7

[hurkleho]

Hi, my landlord is going to replace my ancient economy 7 heaters. I am at home all the time due to illness, and as my day rates are so much higher for even boiling a kettle, would it be more economical to replace them with electric panel or convection heaters? TIA

[Buenchico]

I certainly don't claim to have any great expertise when it comes to electric heaters but, looking at your situation purely on the basis of physics and mathematics, I can't see how switching to heaters that (when in use during the day) will be using high-price electricity could be an improvement on ones that are providing heat that's been generated overnight using low-price electricity.

'High heat retention storage heaters' would seem to be the best option for you, if you can persuade your landlord to fit them. This link is from the Centre for Sustainable Energy, which is a charity that provides advice on energy usage:
https://www.cse.org.uk/advice/advice-and-support/night-storage-heaters

[hurkleho]

Thanks Buenchico. My meter would be changed to a flat price meter with no off/on peak change, so my daytime electric would cost me a lot less for cooking, laundry, watching TV etc. The problem with storage heaters is that, no matter how modern, they have generally leaked out all their heat by evening time (even when output is turned off), meaning another heat source will have to be used, eating up electric at a higher cost. I'm thinking that flat rate electric and programmable panel heaters might be more efficient for me

[bobbinwales]

We use to have E7 and it was only cheaper than non-E7 if we nearly 50% of our electric were during night hours