[Greenbuilding] Heat pump HWS
Antonioli Dan
solardan26 at gmail.com
Fri Apr 22 22:51:50 CDT 2016
So where are the numbers?
Are you willing to invest in your own ideas, spend your own money? Report back?
On Apr 22, 2016, at 8:45 PM, Nick Pyner <npyner at ihug.com.au> wrote:
> 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.
>
> http://www.energyrating.gov.au/document/consultation-regulation-impact-statement-heat-pump-water-heaters
>
> and background
>
> http://yourenergysavings.gov.au/energy/hot-water/heat-pump-hot-water
>
> 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.
>
> 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.
> The game seems pretty shambolic.
>
> Nick Pyner
>
> Dee Why Beach NSW
>
> On 23/04/2016 1:34 AM, Antonioli Dan wrote:
>> I’m looking into hybrid models that allow you to program the tanks to run on heat-pump only, electric only, and both.
>>
>> But with heat pumps now all the rage what I’m looking for are solid numbers, not hypothetical calculations.
>>
>> On Apr 21, 2016, at 9:32 PM, Nick Pyner <npyner at ihug.com.au> wrote:
>>
>>> Indeed I have. I was unsure about raising them because of climate considerations, but the essential principle is the same anyway.
>
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