Recent content by phancey

Yes but I'm still an idiot so it doesn't necessarily make it clear to me! There is some technical stuff there that assumes a certain understanding. Back to basics for me. If the pressure drop remains constant then where does the increase in pressure on the pump come from (which we already...

I understand most of that :) Not sure about the "uncontrolled type" - what are the alternatives/differences? ok, speed does not equal flow rate...? As trvs close, the pressure increases so it is harder for the pump to push the water around so the flow rate reduces.... which means the...

thanks for this - ok I think I almost get it. Bigger temp drop requires lower flow rate which presumably can be done by either adjusting pump speed or balancing system by turning lockshield valves? Another question then from a beginner - if the system is balanced to give a xC drop with all...

yes it seems to make sense but if it gives off more heat then why has the other one lost more heat from the water? I'm sure it's obvious but I can't quite see it. Where has this extra 10C been lost to? Also if a boiler quotes an output using a 20C gradient, what does this mean? Is it more...

hi, I'm trying to get to grips with radiator power ratings. I can't quite get the logic. If I have a radiator that has flow of 75 and return of 55, that would seem to me to be outputting more heat into the room than one with flow of 75 and return of 65 (since it seems to be losing 20C over...