----- Original Message ----- 
From: "Bruce Napier" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, September 26, 2006 12:49 PM
Subject: Re: [canals-list] Overcome by fumes



On 25 Sep 2006, at 22:17, Niall wrote:

>> On that subject - I see that the BSS formula is based on the kW output
>> of
>> the stove, how do you work out what that is?
>>
>AFAIK, the manufacturer calculates a nominal output for the stove,
>presumably making some standard assumptions about fuel - don't know if
>there is a BSI/DIN or whatever standard for it.

Bit of a problem there, then, 'cos I made the thing meself...
I was hoping there was something based on grate area etc.
I'm working on the basis of size relative to the ones in the Machine Mart 
catalogue that it's unlikely to be more than 1 kW, which gives a manageable 
size for vents.
Then there's the problem that vent manufacturers don't seem to quote 
effective area.
Nice to know it's only advisory, though.

-- 
Niall





 
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