Hot water, but only just

[littlespark]

Got a Worcester combi boiler that gets serviced every year through BG, but we are finding that the hot water is never that hot.

I think the water is passing through the boiler too fast and doesn't get a chance to heat properly.

Very noticeable on the bath, where we have to close the tap down quite a bit until the flow rate reduces coming out the tap.

Is there a way to reduce the flow rate as it goes through the boiler?

 

[Aire]

Don't disagree but you've got to admit they are very quick to blame sludge and will soon push their very expensive flush

Agree on that one, I had one customer who had been told by BG her system was full of sludge and needed a powerflush. Stupid quote for the work when all that was needed was a new ball valve in the loft as it had seized and system had dried up.

 

[Welder]

Agree on that one, I had one customer who had been told by BG her system was full of sludge and needed a powerflush. Stupid quote for the work when all that was needed was a new ball valve in the loft as it had seized and system had dried up.

That's bl00dy appalling 😡

 

[Rob Foster]

That's bl00dy appalling 😡

bg staff are largely sales driven NOT problem solvers. there is little profit in their servicing business its the add ons that they can sell that keep,that business alive. and of course the radicals but you need experienced staff allocated enough time to do radical jobs properly
Rob Foster
aka centralheatking

 

[littlespark]

I’ve been out to check. Boiler is a Worcester 30CDi, not 37 as I first thought.

 

[Aire]

I’ve been out to check. Boiler is a Worcester 30CDi, not 37 as I first thought.

Probably a little underpowered for your usage, but as previously mentioned, there may also be issues within your boiler.

 

[Rob Foster]

I’ve been out to check. Boiler is a Worcester 30CDi, not 37 as I first thought.

that might explain a lot
chk

 

[littlespark]

I just assume that if BG service the boiler annually, they optimise it to give the best that it can be.

 

[Steve weightman]

By not turning on the tap slow first then when hot then faster acts in the same way as a combisave so in my opinion a waste of money

 

[decomplexity]

Even though to get hot water you need to close the tap to a trickle but believe you can get adequate flow - albeit if cold, the alternatives are simply that either the **amended as mentions boiler repairs**. I realise that either of these should affect the total flow and not just hot flow, but I have seen exactly this symptom on a W-B 34 combi in a very hard water area (Bath). If either prove to be the problem, you could - after fixing - also install a CombiMate to help reduce its tendency to scale the DHW side (the CH side should not scale).

 

[littlespark]

It’s Scottish water, so doesn’t have the scale problems as other parts of the uk.

Beginning to sound like it could be a number of things.
Maybe I’ll just contact bg to fix as I have their repair plan

 

[Riley]

Deleted

 

[Riley]

Please do not give boiler advice in open forum