Re: What have you tinkered with today?
£170???
Wow
What have you done with regards energy efficiency? If very little then 30% saving should be in your sights.
What heating system do you have? Gas/electric? Combi/standard boiler?
Lighting? Filament/CFL/led?
You running a server farm?
Seriously. How much gas & electric do you use a year? How old is your boiler?
Building efficiency is bread and butter to some of us.
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