Black box number 2

I decided to use a arduino nano in this one.   Partly became it has the USB port for progressing,  but also had a 3.3v output.
Unfortunately,  it's only providing 2.4v which doesn't seem to be high enough to drive the network adapter.
So like like I'm going to have to add a separate regulator.

Decommissioning of power mon, Mark one

Poe temperatures sensor in a box

Radiator Balancing

I didn't have much time to spend balancing the radiators.  I read a couple of web sites and in the end decided to so it simply by turning down the lock shields and opening a quarter turn, then tweaking slightly to either increase the decrease the temperature differential.  The target is 20 degrees,  but I just held the pipes and looked for a noticeable difference.

Its a week latter and I have added flow and return monitoring, I notices that the flow temperature cycles, but interestingly this cycling is also visible in power usage.   Its off that I've not notices this before.

Import power( orange ).   Flow ( red )

Looking back through the history of my electricity usages,   I see when the effect starts.  9th Jan about 10:30pm - just the time when I balanced the radiators.

Import power ( orange )

So the question is; has balancing my radiators saved me electrisity?

Central heating update

Its been over a year since I had a new boiler installed, but I have finally got round to installing radiators in all my bedrooms.   It took a while to do.