Today was a quite day at the house with us being away most of it. I just check the log of the hotwater heater electricity usage and thought it was interesting
The watts on the right aren't correct, the peaks should be 3800 watts not 4200.
What you see is from midnight to midnight
The first 4 spikes are the heater kicking on to make up for loss to the environment. Each is 4 minutes
The next small plateau is washing up after breakfast. Thats 1 pot and the dishwasher turned on.
Right after that is my wifes quick shower since we where late.
4 more 4 minute spikes while we're out of the house
My shower
2 more 4 minute spikes.
32 of 98 minutes worth of the hotwater tank heating was the tank maintaining it's temperature. 8 minutes was shortly after a big usage of water so I'm assuming it's not restoring 100% of the hotwater right after a usage, it must stratify or something.
the remaining 48 was actual time recovering directly from water usage.
so almost 1/3 of the power my tank uses goes to standby loses. I really wish I had space to add an insulating jacket to see how much it helps. The new tank will definitely be getting one.