Boiler not heating up enough hot water

[stephrose87]

Hi all,

We have a Potterton Suprima boiler (c. 15 years old, I'd guess), with a water storage tank in the loft. The central heating and hot water work fine, up to a point... there is never enough hot water to fill a bath, it runs out halfway, and then there's no more for another hour or so. What could be wrong with it? Is there anything I can do without calling out a plumber?

Thanks

 

[kidgreen61]

Is the boiler stat set hot enough?
Is the cylinder stat (if there is one) working, and set to around 60 degrees?
Is the programmer set to HW for long enough?

 

[Agile]

To help us further you may need to measure the volume of hot water you are expecting.

Take a bucket of known volume or measure the volume with a measuring jug.

Then from the cold tap see how many bucket fulls you need to fill the bath to your chosen level.

Tony

 

[Agile]

To help us further you may need to measure the volume of hot water you are expecting.

Take a bucket of known volume or measure the volume with a measuring jug.

Then from the cold tap see how many bucket fulls you need to fill the bath to your chosen level.

Tony