20 year old UFH - Upgrade?

[dewsbury]

Hi,
I have domestic water based UFH - 20 years old. House is 100 years old with 5 beds. UFH everywhere.
Works okay but perhaps could be better. Top of house is coldest.

I have newish worcester boiler(Greenstar 8000 life).
System is on 4 different storeys, 5 manifolds and perhaps 18 loops.
There IS a pump beside the boiler on the ground floor.

I am wondering;
(a) Do I need more that one pump?
(b) Should I have a thermometer at each manifold (I often end up putting my hand on the pipe trying to judge the heat level).
(c) Should I have some method of measuring the flow
(d) Gas prices are high (!) - Should I put UFH on - 24 hours per day Or would 12 do?
(e) Should I have system serviced?
(f) Should I replace manifolds parts?

Thanks all!

PS: The image is not my actual manifold but very similar

 

[ShaunCorbs]

Have you got a picture of boiler and pump ?

 

[dewsbury]

Have you got a picture of boiler and pump ?

Hi, See attached. Hopefully that helps. THis is the back porch of thehouse. There is a bedroom above and another bedrroom above that.

 

[ShaunCorbs]

At the back pipe with the f on it where does this go ?

 

[dewsbury]

At the back pipe with the f on it where does this go ?

See image with 2 purple buttons indicating where the water goes.
The "f" pipe goes 2 ways. One at ground level towards the kitchen/house. The other is way is via a pressure gauge and at waist level into kitchen/house.
Incidentally, the boiler also does the hot water.

 

[ShaunCorbs]

Yes I would agree your system needs sorting out as it sounds like maybe the pump either isn’t set up correctly or might not be strong enough etc

 

[dewsbury]

Yes I would agree your system needs sorting out as it sounds like maybe the pump either isn’t set up correctly or might not be strong enough etc

Thanks for your expertise.
One final question.

Yes I would agree your system needs sorting out as it sounds like maybe the pump either isn’t set up correctly or might not be strong enough e

 

[dewsbury]

Yes I would agree your system needs sorting out as it sounds like maybe the pump either isn’t set up correctly or might not be strong enough etc

Thanks for your expertise.

One final question. Given that the UFH is on 3 levels/storeys of house... Do I need more than one pump?? Is it possible to say?

 

[ShaunCorbs]

Thanks for your expertise.

One final question. Given that the UFH is on 3 levels/storeys of house... Do I need more than one pump?? Is it possible to say?

You might need an external pump depending on what the internal one is set too yes or might need balancing / setting up etc