"Andy Hall" wrote in message
...
On Wed, 12 Jan 2005 01:46:39 -0000, "IMM" wrote:


"Andy Hall" wrote in message
.. .
On Wed, 12 Jan 2005 01:02:15 -0000, "IMM" wrote:

For no lag and 18 litre/min flowrates also see
the Alpha CD50 condensing storage combi:
http://www.alpha-boilers.co.uk/products/CD50.html

"The Alpha CD50 condensing storage combi is designed to satisfy the
hot
water and heating requirements of the larger home whilst reducing
energy
consumption. When the store is fully charged an equivalent domestic
hot
water output of 50kW gives a flow rate of up to 18 litres per minute
at
approx 55C - 60C, enough to fill an average bath in about 3 to 5
minutes."

There is marketing-speak in this:

- The specification doesn't say what an average bath is.

The avergage bath is now 80-100 litres.

Really? Have you measured one lately?

I repeat: "The avergage bath is now 80-100 litres." They are shaped to
hold less water.

This will fill an avarage bath in
minutes and never run out of hot water at any time.

This is the marketing claim.

An actual claim. I have see the CB50 in acvtion, very impressive. A poster
here as one and confirms that.

They neatly sidestep any obvious
references to wat the rate is when
the small store runs out.

The small cb50 was about 11.5 l/min. This should be over 13 l/min. Not bad
at all. Rarely will you need to drop to the lower stage in an average home.

3 minutes to recover
the water store.

Which is a separate issue and again presenting something in the most
favourable light rather than the reality of what happens when the
small store empties. They aren't even honest enough to give the
figures because they are embarassing.

3 mins at 70% exhausted., proba bout 5 from cold.

- The maximum output rate to hot
water is 32kW implying max of 13lpm
once the small store runs out.

It is a condenser, so more towards 14 litres/min.

It being a condensing boiler
or not is irrelevant to this.

Condensers provide more heat for the input. This and the B-W 440 should be
more than ideal for the original poster. The 440 can go just about
anywhere with a flexible fluing arrangement and a condensate pump.