Too hot, hot water, Help

robatwork

Don't turn it down too far

http://www.hse.gov.uk/healthservices/legionella.htm

nofoollikeold

That's a direct heated unvented cylinder. It is not suitable for DIY maintenance, and you should employ a plumber with a "G3" unvented cylinders certificate.

betterlatethannever

Thanks for all your help.
I'll be contacting the LL later and see if he'll get someone to look at it.


Not sure how accurate this is but i ran the water for 20 seconds then put some in a cup and put the thermometer in :eek:
https://postimg.cc/4K4Cm8J7

ComicGeek

50 degrees Celsius??? That's not hot, are you confusing Fahrenheit and Celsius? That's literally half of boiling.

Cylinders should be heated to over 60 degrees Celsius on a regular basis to kill any nasty bugs.

betterlatethannever

I didn't know that CG, thank you

My previous property had 'barely warm' hot water



I had to take the thermometer out early as it was rising too high, so would have been a little higher than that, but not too much more.



So it seems my too hot water is actually just about right :T

coffeehound

Assuming its heated overnight, try putting your thermometer directly in the flow from tap first thing in the morning.

If it is much over 65 degrees C, you could try reducing it and see if that still gives you enough hot water throughout the day.

Edit: oh scratch that, your thermometer only goes up to 55 C

bris

Thermostat should and usually is set at 60. Legionella thrives between 20 and 50 so cold water outlets need to be below 20 and hot over 50 so keep it where it is.