On 15 Sep 2005 15:48:37 -0700, wrote:


The ACV Heatmaster 35 KW combi supplies 38 litres per minute of hot
water at 60 degree C. I have all the details.


Clearly you haven't read them properly, or have just looked at the
glossy brochure. Have you been taking dIMM pills.?

That is the short term peak value.

The HM35TC is claimed to be able to deliver 224 litres per 10 minutes
at 60 degrees.

However, the constant flow rate is 9.6 litres per minute at the same
temperature rise of 50 degrees. At the more commonly quoted
temperature rise of 35 degrees, the constant flow rate is 15 litres
per minute which is as predicted by the appliance rating.

They conveniently omit what the size of hot water storage actually is,
so that one cannot determine the real performance of the system.

The sales brochure describes the unit as "light weight". Hmmm... the
spec. says 170kg empty.

It's also described as "small". The actual size is 670 x 600 x 1700
which is hardly that. It won't even fit into a standard washing
machine footprint. This means that it will either be taking up
valuable space in a kitchen (which would have to configured in a
non-standard way, or to be placed in a cupboard. In effect, the size
is the same as a storage tank and there is virtually no usable space
saving compared with a conventional cylinder and separate small
boiler.

This is not to say that the design isn't reasonable in principle, but
there is considerable specmanship and hype in the way it's described.



--

..andy

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