<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>So where are the numbers?</div><div><br></div><div>Are you willing to invest in your own ideas, spend your own money? Report back?</div><div><br></div><div><br></div><div><br></div><br><div><div>On Apr 22, 2016, at 8:45 PM, Nick Pyner <<a href="mailto:npyner@ihug.com.au">npyner@ihug.com.au</a>> wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
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<div bgcolor="#FFFFFF" text="#000000"><p>Ah, now that IS interesting. Because the NSW certification rated
heatpump highly, I assumed the testing was all done. I'm sure
this is true from a simple energy standpoint, a COP is a COP, but
that is all the energy certification is interested in, and it
doesn't reflect the bigger picture. The controversy I alluded to
has been brewing for some time and it all hit the fan with with
the release of a Regulatory Impact Statement in 2013.</p><p><a class="moz-txt-link-freetext" href="http://www.energyrating.gov.au/document/consultation-regulation-impact-statement-heat-pump-water-heaters">http://www.energyrating.gov.au/document/consultation-regulation-impact-statement-heat-pump-water-heaters</a></p><p>and background</p><p><a class="moz-txt-link-freetext" href="http://yourenergysavings.gov.au/energy/hot-water/heat-pump-hot-water">http://yourenergysavings.gov.au/energy/hot-water/heat-pump-hot-water</a></p><p>The certification work I do is a minimum standard. I have never
needed to call for heat pump. If PV goes in, a plain-vanilla
storage heater more than suffices. I was looking into heat pumps
on a job but I found the manufacturer excluded alpine areas over
1000m, and there's me, you guessed it, working on a ski lodge at
1700m. I subsequently found that Rheem make no such distinction
and claim(ed) their included resistance heater was unique. Not
true, Bosch have one too.</p><p>I can't see why you would ever programme a heat pump to use
electric only. It is only there for backup and should not require
human intervention.<br>
</p><p>The game seems pretty shambolic.</p><p>Nick Pyner</p><p>Dee Why Beach NSW<br>
</p><p> <br>
</p><p>On 23/04/2016 1:34 AM, Antonioli Dan wrote:<br>
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<div> I’m looking into hybrid models that allow you to program the
tanks to run on heat-pump only, electric only, and both. </div>
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<div>But with heat pumps now all the rage what I’m looking for are
solid numbers, not hypothetical calculations.<br>
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<div>On Apr 21, 2016, at 9:32 PM, Nick Pyner <<a moz-do-not-send="true" href="mailto:npyner@ihug.com.au"></a><a class="moz-txt-link-abbreviated" href="mailto:npyner@ihug.com.au">npyner@ihug.com.au</a>>
wrote:</div>
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<div bgcolor="#FFFFFF" text="#000000"> Indeed I have. I was
unsure about raising them because of climate considerations,
but the essential principle is the same anyway.<br>
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