Thanks guys, that's what I was looking for. No need to do all this research, just curious if anyone knew off the top of their head.
Remek On Fri, Mar 18, 2011 at 4:04 PM, John Frewen-Lord <j...@frewston.plus.com>wrote: > The NBCC is primarily a performance based code, and most HVAC requirements > (Part 6) are based on required air changes per hour - how you get those air > changes is up to you as long as you can demonstrate it. However, Part 9 is > a prescriptive 'deemed to comply' section, primarily for small buildings and > dwellings. > > Pulling out bits from both Parts 6 and 9, the following might be useful: > > Part 6 > Storage garages - 3.9 L/s per square metre of floor area. > Heat recovery ventilators - min 25 L/s, max 200 L/s. > > Part 9 and its Appendix > There are a couple of tables that determine the size of of intake openings > to avoid excessive depressurization of dwellings, based on fan capacities of > min. 25 L/s, max. 150 L/s. This can go down to 20 L/s, up to 170 L/s for > 'airtight' dwellings (i.e. based on R2000 construction standards). > > Fan sizes must be based on a calculation procedure using a house's volume - > e.g. a house of 720 m^3 will require total fan capacity of 60 L/s. > > The above is a bit disjointed and relates to very specific situations, but > I hope it gives some idea of the numbers involved. As I said, most parts of > the NBCC don't specify fan sizes, etc, just changes of air per hour and > other similar performance based criteria. > > John F-L > > > > ----- Original Message ----- From: <mech...@illinois.edu> > > To: "U.S. Metric Association" <usma@colostate.edu> > Sent: Friday, March 18, 2011 5:13 PM > Subject: [USMA:50093] Re: PC Case fans & flow measurements > > > > What are some typical numbers in L/s or in m^3/s for home ventilation, for >> home heating and cooling systems, and for smaller fans (e.g. in computers)? >> >> ---- Original message ---- >> >>> Date: Fri, 18 Mar 2011 16:16:19 -0000 >>> From: "John Frewen-Lord" <j...@frewston.plus.com> >>> Subject: [USMA:50092] Re: PC Case fans & flow measurements >>> To: "U.S. Metric Association" <usma@colostate.edu> >>> >>> The National Building Code of Canada specifies all >>> ventilation, air supply and air extraction rates in >>> either L/s or m3/s. Hope this helps. >>> >>> John F-L >>> ... >>> >> >> >
