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Posted by Duima on January 23, 2008, 4:14 am
> Duima wrote:
> >> Duima wrote:
> >>> Hello everyone,
> >>> Please help me on this!
> >>> Does anyone has some survey made concerning comparison investment
> >>> costs, running costs, advantages and disadvantages of gas or
> >>> electrical VRV(VRF) systems?
> >>> I would extremely grateful if can send me some material or write
> >>> down your opinion about this.
>
> >>> Kind regards,
> >>> Dujo
>
> >> Check with the contractor who you're buying the system from.
>
> >> --
> >> Zyp
>
> > For their objetive opinion? :)
> > I would like to have independent survey about this topic. For example,
> > It is impossible to find out EER, and COP values of gas heat pumps at
> > partial loads, 25, 50 and 75 %.
>
> Partial loads? Hmmm.., nope generally the EER / HSPF / COP factors are all
> rated at one specific temperature / condition of operation. That way it's a
> level comparison of other brands. If you're looking for comparisons, try
> WWW.ARI.ORG
>
> Happy hunting.
>
> --
> Zyp
Yes, there are these figures, actually without them you can't
calculate ESEER
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