[Greenbuilding] Fireplace questions

[Norbert Senf]

At 02:08 PM 11/8/2006 -0500, Corwyn wrote:

>Snip)  A decent fire is only drawing a few
>CFMs, I would feel hard pressed to notice it.  Drafty would, I think,
>be in the 100s of CFMs (more like my kitchen vent fan).

That is true of a fireplace with an airtight glass door (hard to find),
and  a proper combustion air supply.

An open fireplace draws in the 100s CFM range.
For example, an open 48"x48" fireplace draws about 500 CFM.

Norbert


-------------------------------------------
Norbert Senf---------- mheat(at)heatkit.com
Masonry Stove Builders
25 Brouse Rd.
RR 5, Shawville------- www.heatkit.com
Québec J0X 2Y0-------- fax:-----819.647.6082
---------------------- voice:---819.647.5092