We've recently moved and I've finally got around to checking the flat's energy consumption.
So I start this morning:
08:00 'day' meter reading 8159 09:00 'day' meter reading 8160 10:00 'day' meter reading 8161 11:00 'day' meter reading 8162 OK, one unit or so an hour 12:00 'day' meter reading 8166 What??? 13:00 'day' meter reading 8167 Back to one unit an hour
What happened between 11:00 and 12:00? My wife put the fan oven on for 15 minutes, to heat up a pie. That's right - 15 minutes. Nothing else in the flat changed during that time.
How can a fan oven consume 3 kw hours in fifteen minutes? It's a run-of-the-mill single Bosch fan oven - that's a 3 or 4kw load rating?
To my understanding, the figures suggest the oven was running at 12 kw for that quarter of an hour (some 48 amps) which doesn't seem plausible.
My first thought is that the meter is faulty, but I'd like to know of other possibilities.
Can anyone offer enlightenment?
Many thanks, Peter
P.S. This wasn't a fluke. Mid-afternoon, I ran the oven for another 15 minutes and whoosh, another four units gone over the hour (ie the base load plus three).