On Wed, 02 Nov 2005 04:00:19 -0800, b33k34 wrote:


Ed Sirett wrote:
In the world of grate burners 5-14kW is the typical range from the
smallest to the largest models.

For display types 12kW is quite normal.


It's a Gazco Evolution VFC convector 22" which has an input of 12kw.
manual says it needs 30cm2 of ventilation -

That's reasonable - the required ventilation would be 22.5cm2 if it were
a 12kW boiler, but fires tend to need more ventilation to keep the
chimney well aired and dry.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html