Recent content by ericmark

I good question, in my own house I have solar, and as a result I have the solar software showing me what I am using. There is a particular time of the day which is critical, 00:30 to 05:30 when I have off-peak so I run dish-washer, washing machine, tumble drier, and charge batteries. and one...

I am really not sure what is going on, there seems to be old and new all mixed up together. I also have a DHW system which uses gravity or therm-syphon, and to install Nest Gen 3 I found com goes to boiler not N/O as with most systems. It seems at first glance that the contacts are wired the...

The problem is, although we all know most central heating boilers require analogue control, for years we have used digital i.e. on/off. Both will work, but analogue tends to be better suited to gain the latent heat from the boilers flue. I have not seen an analogue method to heat DHW with a...

Oh, I love that answer. Not quite so clearly what was not wanted as an answer, but I remember a homework question, why does the voltage drop in a lead acid battery. I could answer, because it is discharged, and as a mechanical student that would be a fair answer, but as an electrical student I...

Your 30 kWh is far larger to my 6.4 kWh, and I question why you need a supply from the grid? My 6.4 kWh will not discharge to less than 10%, so 5.76 kWh is useable. My use is around 12 kWh per day, and my panels are 6 kW with a 5 kW inverter. So summer purple line is the state of charge of...

Do you remember It came up in nearly every exam, and you had to understand the difference between the two. Latter editions don't have the two definitions but it was rather silly, the "and others" one would hope a skilled person also made safe. So we have to work out how pedantic the marking...

Something in the charging system has to be linked to the provider to use the "Intelligent" option, I have not got a system which will allow the provider to take over control, so I only have Octopus Go. It has nothing to do with CT coils, although the coils you have do seem a bit close...

I am not really following what is going on. My DHW can be heated by the central heating, in fact can't stop it, as C Plan, the direct solar heating for DHW in North Wales on father-in-laws house was a total failure, looked good although daughters in Turkey works well, so I know from bitter...

At 30 kWh the tariff may work. For me, the rub was the tariff tied me in for a year, so when I found that in my case British Gas were unlikely to ever pay me for export I was 6 months into the tariff, and it seemed likely at that time of the year, I would not get the £75 back by moving, so in...

Any better? Fly lead now included for @pete01

Radial with RCBO. Sorry, yes he need to understand a ring final, I after my accident went to collage, I was allowed to sit in on a course, and I really wondered what children are taught is school, simple question, what as well as copper can be used at a conductor, I looked around the class, and...

OK using a RCBO then will I get higher or lower marks for that? Next you will want a SPD.

My consumption yesterday. seems only 3 cups of coffee, but the question has to be, can I change the use enough to line up with the off-peak times, and that seems unlikely. So we look at power use, freezer and fridge, reasonable even through the day, the washing machine, tumble drier and...

Other than the FCU not being connected, and the 6 wires which should not be there, OK. I don't think you know what a ring is!

It says ring, so wire as a ring, not spurs off a ring.