On Fri, 24 Jun 2005 23:55:37 +0100, "Doctor Evil"
wrote:


95% efficioency on a scale to 109%, so you can work it out from that.

Oh come off it, even you know that that doesn't fly. The two
systems in use here (SEDBUK and the continental Europe one) are quite
clearly defined.

You have been told. SEDBUK means nothing to a multi-point. It doesn't do
space heating.

Yes I know. I was simply mentioning two scales. On the data sheet of
this appliance that you believe to be so great, there is not even a
reference to the measurement method.

One could deduce the output to water from the flow rate figures, but
if the manufacturer can't be bothered to state efficiency methods used
then it's not impressive.




- If it's the same one as is used in the
UK, then I find it very hard
to believe that it is achieving 95%
when everything here is achieving
90-91%.

You don't have seasonal efficiencies on multi-points, they are rarely on
part load.
90-91 is seasonal effifiencies - SEDBUK.

Of course. That's why I didn't think for
one moment that it would be
95% on a SEDBUK type of scale when
everything here is 90-91%.

SEDBUK scale? The scale is to 109%

Exactly, which makes the efficiency crap.



If it's the continental European system then the range is
normally in the 106-109% range, and this would be pretty poor.

- Looking at the internal design, the thing has a secondary heat
exchanger and upfiring burner. Hardly leading edge, is it?

Yes well the construction is not ferrous, In cheapo condensing boilers
the
primary heat exchanger is ferrous and the secondary is not.

The design is archaic. This is not the great product that you claim.

It is very efficient. I believe Rinnai have better models, but not yet
available outside of Japan.

Crap. 95% on a scale of 109% when typical European boilers are
managing 106%?

You're having a laugh.




- The NG input is 199,000 BTU in deprecated units, or 58kW. This is
virtually the entire output from a domestic supply, leaving no spare
capacity for anything else unless a commercial supply is installed.

Enough for a hob.

Oh please.

You don't like hobs?


WHat about the oven, the gas fire,......

This is a nonsense product in terms of any possible UK application....



--

..andy

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