Paul Barker said:
It was Tony, reason is the valve is less affceted by transferred heat from pipework and rad on two counts, because it is on it's side (if directional) so head is further from rad, and 2 because the pipework is cooler on the return.
But Tony said the hoover would muller it more easily.
Paul, I don't get these reasons.
1. Directional valves
If a TRV is not of the reversible type, then it has to go on the flow end, by design. So I guess you must mean something else, but I can't work out what. I especially don't know what you mean by "because it is on it's side".
2. Transferred heat.
Clearly I'm not going to disagree that the return end is cooler then the flow end, but I don't see how this equates to better performance of the valve. The air around the TRV head will indeed be hotter on the flow end, and this will make a standard TRV shut down at a cooler overall room temperature, that just means that it gets turned up 1/4 a notch, or whatever, not that the performance is different.
If the manufacturer has designed the valve to be reversible, then that's what it is. I admit it's a long time since I read the instructions that comes with a TRV4, for example, but do they indicate that the valve will perform better on the return? If so, I wonder why they ever made the non-reversible ones to go on the flow instead?
Regarding the hoovering, I thought I knew what the words "hoover" and "muller" meant, colloquially, but I guess I was wrong - what is this all about?
Paul Barker said:
Better get that in before someone sues for 10 mill because I didn;t warn them of every eventuality.
Hmm. Perhaps there should be a disclaimer in the membership terms.
