Real world vs theoretical hot water temperatures

[jakeycrx85]

Has anybody compared the theoretical hot water temps to what you actually get in the real world?

I've just done the comparison on my Ecotec plus 824. I'm getting a 42 degree rise at 8 litres per minute when the theory says it should be achieving 43 degree rise so it's pretty close.

 

[Steelmasons]

Where do these people come from FFS.

 

[Stadan20]

Where do these people come from FFS.

Nothing else better to do I spose

 

[jakeycrx85]

Where do these people come from FFS.

It's a good question. It's a good way to tell you if the boiler is working at it's best. It appears mine seems to be OK.

I presume from the hostile reply that you don't know how to work it out.

 

[jakeycrx85]

Where do these people come from FFS.

Nothing else better to do I spose

It took 5 minutes and the results tell me that both my heat exchangers must be fairly clear and working as they should. How else would you check the performance of the heat exchangers?

 

[Stadan20]

Why would u post this ,,, and why would you even bother , I bet ur not a gsr , just one of these ****s that looks up ****e on the Internet to make ur self look good

 

[jakeycrx85]

I'm not a GSR. I wanted to check the boiler was performing correctly after some recent problems.

This method only involves turning on the hot tap and not messing with the boiler. How else would you suggest I check it?

 

[AGAS]

i bet your mind has been in over drive since last thread , wait .... wait... wait ... can i hear your boiler making a funny noise . remember black is white and white is black

 

[Steelmasons]

Would you be so kind as to educate me Jake?
Is there some kind of calculation involved?
Is your boiler working to its optimum performance?
I'm intrigued as to why the discrepency of 1 degree celcius?...possibly ask vaillant for a service call?
Obviously a cheap skate bastad opting for the 24kw.

 

[jakeycrx85]

i bet your mind has been in over drive since last thread , wait .... wait... wait ... can i hear your boiler making a funny noise . remember black is white and white is black

The boiler is working a treat!

 

[jakeycrx85]

Would you be so kind as to educate me Jake?
Is there some kind of calculation involved?
Is your boiler working to its optimum performance?
I'm intrigued as to why the discrepency of 1 degree celcius?...possibly ask vaillant for a service call?
Obviously a cheap skate bastad opting for the 24kw.

There is obviously a calculation involved but you already know that because you are the gas wizard.

A 1 degree discrepancy seems OK to me on a 7/8 year old boiler. I was hoping to make a comparison with what other people had observed. Hopefully some more intelligent people will be along soon to give sensible answers rather than the idiots that have commented so far.

As I've already said in the other thread you regularly commented on the boiler was already installed in the house when I moved in. It's perfectly fine for the application. It's only a small 3 bed semi with one bathroom.

 

[roguetrader]

I was having similar thoughts so I'm glad you've bought this up.
I did a similar experiment and got some interesting results.
The results I got were quite a way off the figures stated in the manual, I spent quite some time stripping parts off to inspect and eventually replaced the heat exchanger, gas valve, complete loom, casing and flue but still no improvement.
I asked similar questions here but didn't get any help whatsoever at all.
I was tearing my hair out with worry as I was a good 5 or 6 degrees adrift of the stated figures.
Eventually after 3 visits from the manufacturers top engineer, reading the Internet for days on end and even writing a letter to the dali lama I found the answers I was looking for.
I'd been reading the wrong manual.
Goodness me I was cross.

 

[jakeycrx85]

I was having similar thoughts so I'm glad you've bought this up.
I did a similar experiment and got some interesting results.
The results I got were quite a way off the figures stated in the manual, I spent quite some time stripping parts off to inspect and eventually replaced the heat exchanger, gas valve, complete loom, casing and flue but still no improvement.
I asked similar questions here but didn't get any help whatsoever at all.
I was tearing my hair out with worry as I was a good 5 or 6 degrees adrift of the stated figures.
Eventually after 3 visits from the manufacturers top engineer, reading the Internet for days on end and even writing a letter to the dali lama I found the answers I was looking for.
I'd been reading the wrong manual.
Goodness me I was cross.

Still waiting for that non moronic reply. They do say that sarcasm is the lowest form of wit.

You don't need the manual. You only need to know the KW rating of the boiler.

 

[Steelmasons]

It's quite common for an incorrect data sticker to have been affixed to boiler when manufactured....
Possibly you have the 837?....this being the case the stated flow rate you posted is shocking..

 

[jakeycrx85]

It's quite common for an incorrect data sticker to have been affixed to boiler when manufactured....
Possibly you have the 837?....this being the case the stated flow rate you posted is shocking..

It's an 824. If it was an 837 the temperature rise would be a hell of a lot higher at 8 litres per minute. I'm sure you can tell me what it should be if it was an 837.