[Stoves] "78% Efficient"

[Frank Shields]

Dear Crispin,

I wonder how many more years it will take to do such a simple job.

Frank





Frank Shields
franke at cruzio.com


> On May 6, 2015, at 12:27 PM, Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
> 
> Dear Friends of Efficiency
>  
> Here is the “Ad of the month” from the Alliance for Green Heat
> <image001.png>
> The problem starts with the EPA having a ‘default’ estimated heating efficiency based on a fuel type. No one has any idea what the heating efficiency is, apparently. Even if there was a set of measurement that came to the 78% figure, that would only apply to the stoves measured, not future stoves that might work much better.
>  
> Note the ‘firepower’ is based on the theoretical heat available from the fuel. Oh wait, there are two fuels listed but only one heat ‘input’.  Heat input means the heat that could be generated from the fuel burned, not the heat actually generated.
>  
> So, there are all sorts of problems in the stove industry, not just the cooking stoves.
>  
> Makers of compliant stoves are suing the EPA to speed up the implementation of new lower emissions limits. Makers of non-complaint stoves are suing the EPA to have the new limits delayed. Some states are ignoring the new regs, some are applying them.
>  
> At least the test method is an improvement over the old one, though no one is yet claiming that the test predicts performance in the field. The main purpose of the testing is outdoor air quality.
>  
> Regards
> Crispin
>  
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