...the higher the temp the more hot water pressure you will have...
That's also useful to know.
...the higher the temp the more hot water pressure you will have...
You do know he has a gas boiler ?And just to save yourself some money on the electric bill - the thermostat in the top immersion shall be set 5 degrees lower than the boiler stat. Essential until the booster timer is installed/working.
Thank you all, that's very helpful and I've now left the immersion heater off and I've moved the black dial to 60 - the boiler has fired up to handle that call (as central heating is not being called for). I will monitor and test how the shower is performing tomorrow.
You also, against our advice, turned back on the top immersion heater. Using electric heating costs three times that of using gas.
60c is the correct temp setting due to potential legionella issues , especially so due to the absence of a de-strat circulator.You say that you had turned the dial to 60 C. But you had been advised to set it at 55 C.
It is not going to be obvious to you, but there are actually reasons for the correct settings!
Mis-leading advice yet again.The water should be at about 55 C so that when it reaches the tap it is not too high and risk scalding.
Bottom immersion heater stat should be set lower than 55c due to stratification causing top immersion heater stat to trip on overheat.Inside the immersion heaters again the stats should be set to about 55 - 60c.
Spot on..I am sceptical that you understand anything. You're certainly late to the party in any respect. Best to jump on active threads if you feel you wish to offer assistance, not come in to gripe about the advice given after a satisfactory solution has resulted through the advice of others.
Your use of "against our advice" was interesting, I felt... maybe you think of the forum as some kind of hive mind... but I look at is as though you weren't involved. I can't figure out if you're trying to hog the glory (?) or you are just bored. I'll leave it at that - thanks to those forum members that gave me good input, I really appreciate it and I learned something.
You were previously told that the hotter the water the higher the pressure. That is not correct.
I'll await for Agile's answer , hopefully he has recieved the correct training in order to enlighten us?If you have 2 bar in an unvented cylinder when the water is at 20c what do you think the pressure will be at 60c ?
do you think the expansion vessel plays no part in affecting pressure ?
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