"Mike Hibbert" wrote in message
...
Hi all,
I'm guessing that this is a pretty daft idea as I have seen no-one else
suggest it. I'm looking at shower options at the moment, and I live in an
area with fairly low water pressure. One of the easiest options would be
to
have an electric shower, but I have hear that the water pressure would be
even worse in winter as the shower would need to heat the water from a
lover
ambient temperature.
So, why not mix the water with hot water from the combi? I could have a
feed
fron the hot and cold water supply going into one pipe and then feeding
the
electric shower. The water would be pre-warmed and therefore could be made
the same all year round. If the electric shower wasn't raising the
temperature too much it woudn't have such a problem delivering more water
would it?
Like I say, this is based purely on my own "sort of" logic rather than any
fact, so shoot me down gently!
Mike,
You have the making of a good idea with some trimming. There have been some
odd suggestions from people on this thread. A combi will do the shower no
problem even in winter, as they put in a lot kWs. So first option is a
thermostatic mixer valve fed from the combi's hot supply. Also gas is 1/4
of the price of electricity.
For backup you could have between the combi's hot outlet and the taps and
shower mixer an instant in-line electric heater. These have
thermosstatically controlled water temp. When on electric this will give a
trickle of a shower, and service one tap at a time, but fine for backup.
Normally you keep this switched off and the hot water produced by the combi
will run straight through it (any water throttle on the electric heater just
keep fully open). If incoming cold mains temperature is an issue then the
electric in-line heat can be switched on to boost the combi. I doubt if this
will ever occur.
In-line electric heaters are about £80-100 from major suppliers and I
believe Screwfix now do one. They can be fitted in the loft, or under sinks,
etc. they are not that big.
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