Ping Larkin
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From: Joerg on 26 Oct 2009 19:46 Jim Thompson wrote: [...] > Sealed double-pane is pretty standard here in AZ. > Same here since years, for new construction or major remodels. But this building is from 1970. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Charlie E. on 27 Oct 2009 13:00 On Mon, 26 Oct 2009 23:00:28 +0000, Martin Brown <|||newspam|||@nezumi.demon.co.uk> wrote: >Joerg wrote: >> ChrisQ wrote: >>> Joerg wrote: >>>> >>>> On the news a few days ago: They had to close the "environmentally >>>> compliant" new wing of a school because of H1N1. The old (real) >>>> buildings exhibited little problems because you could open windows, >>>> "hallways" were outdoors, etc. The newfangled building was >>>> essentially a giant petri dish and so the kids there got sick. So >>>> much for progress. > >That is a weakness of a lot of the no external opening windows designs. >Sick building syndrome as the formaldehyde and other junk from the >furniture and carpets accumulates in a poorly ventilated space. There is >no excuse for not having fresh air heated by outgoing stale air though. >>> <snip> My home here (three years new) has not only double pane windows, it also has plastic sealing in all the exterior walls. In a 70 mph wind, there are only a few places where I can feel a draft - one by a wall outlet, and the other around my back door. The door flexes enough to release the weather stripping! But, my HVAC system also has a timer that causes it to go on with the fan only at least every so often, and the system has an intake to the outside for fresh air. The timer was required by code to provide fresh air to the house to prevent staleness and build up of pollutants. Charlie
From: Joerg on 27 Oct 2009 14:16 Charlie E. wrote: > On Mon, 26 Oct 2009 23:00:28 +0000, Martin Brown > <|||newspam|||@nezumi.demon.co.uk> wrote: > >> Joerg wrote: >>> ChrisQ wrote: >>>> Joerg wrote: >>>>> On the news a few days ago: They had to close the "environmentally >>>>> compliant" new wing of a school because of H1N1. The old (real) >>>>> buildings exhibited little problems because you could open windows, >>>>> "hallways" were outdoors, etc. The newfangled building was >>>>> essentially a giant petri dish and so the kids there got sick. So >>>>> much for progress. >> That is a weakness of a lot of the no external opening windows designs. >> Sick building syndrome as the formaldehyde and other junk from the >> furniture and carpets accumulates in a poorly ventilated space. There is >> no excuse for not having fresh air heated by outgoing stale air though. > <snip> > > My home here (three years new) has not only double pane windows, it > also has plastic sealing in all the exterior walls. In a 70 mph wind, > there are only a few places where I can feel a draft - one by a wall > outlet, and the other around my back door. The door flexes enough to > release the weather stripping! > > But, my HVAC system also has a timer that causes it to go on with the > fan only at least every so often, and the system has an intake to the > outside for fresh air. ... I've always wondered where to get those. It would need to be before the filter or have its own filter. This whole concept of whole house fans is so strange, they rely on venting out instead of in so all the dust and pollen is sucked into the house. In Australia there are (IIRC) systems that blow in instead, makes a lot more sense. Never seen that in the US. [...] -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Phil Hobbs on 27 Oct 2009 14:18 Joerg wrote: > Charlie E. wrote: >> On Mon, 26 Oct 2009 23:00:28 +0000, Martin Brown >> <|||newspam|||@nezumi.demon.co.uk> wrote: >> >>> Joerg wrote: >>>> ChrisQ wrote: >>>>> Joerg wrote: >>>>>> On the news a few days ago: They had to close the "environmentally >>>>>> compliant" new wing of a school because of H1N1. The old (real) >>>>>> buildings exhibited little problems because you could open >>>>>> windows, "hallways" were outdoors, etc. The newfangled building >>>>>> was essentially a giant petri dish and so the kids there got sick. >>>>>> So much for progress. >>> That is a weakness of a lot of the no external opening windows >>> designs. Sick building syndrome as the formaldehyde and other junk >>> from the furniture and carpets accumulates in a poorly ventilated >>> space. There is no excuse for not having fresh air heated by outgoing >>> stale air though. >> <snip> >> >> My home here (three years new) has not only double pane windows, it >> also has plastic sealing in all the exterior walls. In a 70 mph wind, >> there are only a few places where I can feel a draft - one by a wall >> outlet, and the other around my back door. The door flexes enough to >> release the weather stripping! >> >> But, my HVAC system also has a timer that causes it to go on with the >> fan only at least every so often, and the system has an intake to the >> outside for fresh air. ... > > > I've always wondered where to get those. It would need to be before the > filter or have its own filter. This whole concept of whole house fans is > so strange, they rely on venting out instead of in so all the dust and > pollen is sucked into the house. In Australia there are (IIRC) systems > that blow in instead, makes a lot more sense. Never seen that in the US. > > [...] > I think it's probably the retrofit issue. Attics all have vents, so pretty well all you have to do is put a big fan in the ceiling of the top floor. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
From: Jim Thompson on 27 Oct 2009 18:46
On Tue, 27 Oct 2009 11:16:29 -0700, Joerg <invalid(a)invalid.invalid> wrote: >Charlie E. wrote: >> On Mon, 26 Oct 2009 23:00:28 +0000, Martin Brown >> <|||newspam|||@nezumi.demon.co.uk> wrote: >> >>> Joerg wrote: >>>> ChrisQ wrote: >>>>> Joerg wrote: >>>>>> On the news a few days ago: They had to close the "environmentally >>>>>> compliant" new wing of a school because of H1N1. The old (real) >>>>>> buildings exhibited little problems because you could open windows, >>>>>> "hallways" were outdoors, etc. The newfangled building was >>>>>> essentially a giant petri dish and so the kids there got sick. So >>>>>> much for progress. >>> That is a weakness of a lot of the no external opening windows designs. >>> Sick building syndrome as the formaldehyde and other junk from the >>> furniture and carpets accumulates in a poorly ventilated space. There is >>> no excuse for not having fresh air heated by outgoing stale air though. >> <snip> >> >> My home here (three years new) has not only double pane windows, it >> also has plastic sealing in all the exterior walls. In a 70 mph wind, >> there are only a few places where I can feel a draft - one by a wall >> outlet, and the other around my back door. The door flexes enough to >> release the weather stripping! >> >> But, my HVAC system also has a timer that causes it to go on with the >> fan only at least every so often, and the system has an intake to the >> outside for fresh air. ... > > >I've always wondered where to get those. It would need to be before the >filter or have its own filter. This whole concept of whole house fans is >so strange, they rely on venting out instead of in so all the dust and >pollen is sucked into the house. In Australia there are (IIRC) systems >that blow in instead, makes a lot more sense. Never seen that in the US. > >[...] What does it matter, push or suck? As long as the filter is on the inlet side? I think, actually, suction is more efficient. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | With Half My Brain Tied Behind My Back Still More Clever Than Mr.Prissy Pants |