[Stoves] "78% Efficient"

[Crispin Pemberton-Pigott]

Dear Friends of Efficiency

 

Here is the "Ad of the month" from the Alliance for Green Heat



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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