"gerry" wrote in message
...
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On Fri, 19 Nov 2004 04:34:46 +1100, "Rod Speed"
wrote:


"gerry" wrote in message
. ..
[original post is likely clipped to save bandwidth]
On Wed, 17 Nov 2004 15:05:52 GMT, (Gary R. Lloyd)
wrote:

On 17 Nov 2004 09:25:38 -0500, wrote:

Gary R. Lloyd wrote:

\
It seems unlikely and undesirable and avoidable, esp in this country.
Canada's IDEAS (post R2000) air infiltration standard specs 0.15 m^3/h
per m^2 of envelope, tested at 50 Pa, which translates into a natural air
leakage of about 2.5 cfm, or 0.008 ACH for a 2400 ft^2 1-story house,
125X less than a typical 1 ACH US house.

Nick


Is that enough fresh air to sustain life? Would the oxygen deprivation
cause us to be come socialists? Enquiring minds want to know.


Maine requires very tight construction and power heat recovery
ventilation. My guess is they must have _some_ science behind it.

Sustaining life is an intriguing question, I wonder if they addressed it.
Since the ventilation is powered and extended power outages are common in
the coastal areas of the state!

People just dont die in well sealed houses.

Well, many of these homes have propane cooking stoves
(handy for power outages) and AC powered CO detectors.

The obvious fix for that is to either have battery powered CO
detectors or an UPS for those if power outages are common.

Only the fire detectors are required to have battery backup
with low battery alarms. Houses sealed very tightly.

I doubt they are actually sealed tightly enough to kill anyone.

You certainly dont see examples in the news
of people being found dead in that situation.

Another obvious possibility is to just have something
that can be opened manually when there is a power
outage so it isnt as very tightly sealed.

Not a shred of rocket science required at all.

Seems likely the average person might be tempted to use the cooking
stove since most furnaces need AC to provide heat. (Oil furnaces seem
most common). I haven't seen a ODP on a cooking stove yet.

And I havent noticed anyone ending up dead like that either.

The short story is that it clearly isnt a significant problem.

A couple winter days without power might just be poor for one's health!

Unlikely.

I don't think these codes mix very well when the power goes off.

Completely trivial to fix by requiring the CO detector to work thru those.

Wouldnt be much harder to mandate a CO detector that provided
some ventilation as well even when there is a power failure.