Richard J Kinch wrote:
Jeff writes:

A spec sheet giving "current" in "amp-hours"?

You mean the one that footnotes as "Average current consumption for 12
VDC systems over 24-hour period"? So you think it would be more
useful to say "sometimes 4 Amps, sometimes less"?

Describing current in amp-hours is stupid. Defending it doesn't look so
good either.
No one really cares about the Amps in a system where the load varies.
What is important is the total load over time. Attacking something not
labeled to your standards, especially when the footnote properly
describes the spec, make you look like an ignorant jackass.



A spec sheet for a heat pump ... that doesn't give the heat pumped?

Yes, BTU/hour would have been handy.


Handy? How about less than utterly ridiculous.

yada yada yada - if this is the only real problem you can find what's
the big deal? Frankly, there's a few other details I like to see
explained, but this doesn't mean the entire system is fraudulent.



CO2 as a phase-change refrigerant? Critical point, 88 deg F, 31 deg
C. Could a boat cabin get that hot?

What's the problem?


Physics, thermodynamics, that sort of thing.

Then perhaps you should learn some of that stuff. I posted one link to
CO2 systems (out of thousands I found in a few minutes), here's another:

http://www.appliancemagazine.com/ama...ne=214&first=1


Supercritical fluids do
not change phase. CO2 is supercritical above 88 deg F. The author of
this gibberish is either a fraud or a fool.

Or perhaps you're just ignorant. Try Googling "transcritical co2
cycle". I don't know if this product is as efficient as they would have
us believe, or reliable, but claiming its impossible seems rather stupid.