Maybe a shower pump which is also connected to the basin? Turning on the tap, switches on the pump and increases pressure to the shower, which then leaks? Does it leak when the shower is on too?
448 kWh is 1422 cubic feet which could be incorrectly converted / rounded in some way to your 14.3 measurement - it does sound like some kind of conversion / calculation error.
What did they say when you gave them the info?
For reference, I have a 4 bed detached and we used 419.2 kWh for the...
I would price up a few different options; suitable cold water feed; running gas pipe and new system or combi boiler; electric heating; electric vs combi/system shower and also think about how often you think the space will be used in Winter (heating), Summer (showers?) and what kind of...
There are THREE components to those systems, one which sits next to the router and connects via RJ45 cable (Bridge/Hub), one component that connects to all the boiler wires (Receiver) and a third component which attaches to the wall in your hall (Thermostat).
So, whilst they only connect via a...
I entered my data into the above and found it came out very similar to the whole house and stelrad surveys I have previously conducted. You just need to enter room and radiator sizes & types. This will give you an indication on how much kW your radiators can disperse vs your boiler output and...
Interestingly, I just read on Glowmarkt's site it says "See historical data from when your smart meter was installed." - so if your interested in seeing the usage data from before you moved in (assuming the smart meter was already installed), you may be able to see it ;)
If you don't mind another company seeing your usage data, you can sign up to https://www.glowmarkt.com/bright and access your data in graphs, tables or download as a CSV and there is a plugin for Home Assistant too.
The data is obtained directly from DCC (the middle man between smart meters and...
It’s best to think of HA as a OS, rather than an app. Install on appropriate HW as a OS or in supervisor mode for ebusd. I originally installed on an early PI then moved to a micro PC. HA addons like ebusd, Adguard, Mosquito, Ngnix and others need OS or supervisor mode.
HA itself has its own...
Supporting Home Assistant is very off topic for this thread, may I suggest you ask for help / look for advice somewhere more appropriate such as https://community.home-assistant.io/ or https://www.diynot.com/diy/forums/home-automation/ ?