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Re: Hot water to the bath....? |
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| message from John Rumm on 10 May 2004 |
According to the SDA boiler database program that has a max power of
just over 23kW. Not sure if that is its input or output power however.
Since its efficency is low at 70% that could mean the actual power going
into heating the water could be as low as 16kW.
That translates to a feeble 6.5 litres/min at a 35 degree rise (or
better but ot great 9.5 l/m if the 23kW is output rather than input
power). That ought to be OK for a shower - but running a bath is going
to be on the slow side.
Sounds like that could be the one. You may find it is of the ball valve
type - when the screw head is inline with the pipe it is full on, and
rotated 90 degrees it is completly off. Try running a hot tap full on
and then slowly turning the screw a little and see if you can reduce the
flow rate. You should be able to find a point where the water is running
hot enough with the tap fully on. Remember that if you do this the
setting of the flow restriction will change in the summer as the ground
water gets warmer.
It is low enough they probably thought the less said about it the better ;-)
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| troubleinstore replied to John Rumm on 10 May 2004 |
According to the Installation & Servicing Instruction booklet:-
The maximum output available for domestic hot water is 23.3 kW (79,500
Btu h), capable of providing 9.5 litres/min with a temperature rise of
35 deg C.
We didn't know anything about central heating boilers when we moved in
and so we were in the hands of the heating engineer. I must admit though
that looking at this so called proffessionals quality of work, if needed
again at my next house, I will do all the central heating and just have
someone to commission the boiler.
Knowing what I know now from reading various threads on this group, a
better boiler would have been installed.
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Archived message: Re: Hot water to the bath....? (UK DIY House Repairs)
