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Thread ID: 59349	2005-06-29 07:50:00	Home Ventilation systems	wmoore (6009)	PC World Chat

Post ID	Timestamp	Content	User
368044	2007-10-04 04:19:00	Yeah...it brings on future death..... but then again, SOMETHING'S gotta kill ya.	SurferJoe46 (51)
368045	2007-10-04 05:18:00	They work ok in some houses, but not others, as not all houses are the same. One problem with them is that they take the air from the roof, which often contains fibre glass insulation. This means that it is pumping fibre glass particles into the house. The filters they use aren't enough to prevent the microscopic fibre glass particles. Breathing in fibre glass particles is very dangerous for your future health. Robby - agree on the fact that the systems appear to work better in some houses than others. We did the research before we decided to install. Re your comment about the glass particles - and I'm referring here to Pink Batts. Our research says we are perfectly safe ....... The materials they use now are supposed to be safe (refer this pdf (www.insulationsolutions.com.au)). Micron size for airborne f/glass particles is typically 5-6 micron. The standard G4 'sock' DVS filter will effectively filter 50 - 90% of these out. If you were really concerned - you can upgrade the filter to an F5 which effectively filters 90% + of this micron size. I'm pretty confident (after doing the initial research) that both my own health (and more importantly that of my family) is not at risk - and in fact the benefits (less moisture, mould, spores, pollen etc) are a big plus for my family's health. Not only that, the DVS system is endorsed by the Auckland Asthma Society. Hardly think they would do this if the risks you stated are true.	Brooko (8444)
368046	2007-10-05 02:39:00	Robby - agree on the fact that the systems appear to work better in some houses than others . We did the research before we decided to install . Re your comment about the glass particles - and I'm referring here to Pink Batts . Our research says we are perfectly safe . . . . . . . The materials they use now are supposed to be safe (refer this pdf ( . insulationsolutions . com . au/pdf/MSDS-2004 . pdf" target="_blank">www . insulationsolutions . com . au)) . Micron size for airborne f/glass particles is typically 5-6 micron . The standard G4 'sock' DVS filter will effectively filter 50 - 90% of these out . If you were really concerned - you can upgrade the filter to an F5 which effectively filters 90% + of this micron size . I'm pretty confident (after doing the initial research) that both my own health (and more importantly that of my family) is not at risk - and in fact the benefits (less moisture, mould, spores, pollen etc) are a big plus for my family's health . Not only that, the DVS system is endorsed by the Auckland Asthma Society . Hardly think they would do this if the risks you stated are true . Robby - agree on the fact that the systems appear to work better in some houses than others . We did the research before we decided to install . Re your comment about the glass particles - and I'm referring here to Pink Batts . Our research says we are perfectly safe . . . . . . . The materials they use now are supposed to be safe (refer this pdf ( . insulationsolutions . com . au/pdf/MSDS-2004 . pdf" target="_blank">www . insulationsolutions . com . au)) . Micron size for airborne f/glass particles is typically 5-6 micron . The standard G4 'sock' DVS filter will effectively filter 50 - 90% of these out . If you were really concerned - you can upgrade the filter to an F5 which effectively filters 90% + of this micron size . I'm pretty confident (after doing the initial research) that both my own health (and more importantly that of my family) is not at risk - and in fact the benefits (less moisture, mould, spores, pollen etc) are a big plus for my family's health . Not only that, the DVS system is endorsed by the Auckland Asthma Society . Hardly think they would do this if the risks you stated are true . I was informed the following by a well known wellington company that specialises in evironmentally friendly building solutions,about the problems with such ventillation systems . My parents had one of these systems installed, against my advice, and they have found that it doesn't really work and wasn't a worthwhile investment . Their house is large, and is not a conventional design . The potential harm caused by breathing in fibreglass insulation is still an unknown, but in the next 20 years, its effects potentially could be similar to that of asbestos . The fact is that the product isn't old enough to know, and in those situations it is wise to be cautious . Certainly it causes short term problems if you install the stuff without protection . Remember they were saying smoking was safe 60 years ago . There were builders installing the stuff without any form of protection, which may suffer in their old age . The standard filters on the ventillation systems don't prevent the microscopic particles getting through . . Even if they claim that that their finer filters stop 90% of fibre glass, that still means that 10% is still getting through . Home ventillation systems may work ok in 40's to 70's style state type houses, which have a large attic space, which are essentially sealed boxes when the windows are closed . The roofing material makes a difference to their effectiveness, as attics can get very cold being outside the insulation envelope(although this depends on the design of the house), you could be pumping in cold air into your room, and then need more energy to heat the room . I think people are probably better off not having carpet in your house or at least the bedrooms, and opening the windows and regually vacuuming the house with a cleaner with hospital grade filtering . The problem is people kepp their windows closed, allowing spores to develop in the moist warm environment .	robbyp (2751)
368047	2007-10-05 09:11:00	I was informed the following by a well known wellington company that specialises in evironmentally friendly building solutions,about the problems with such ventillation systems . My parents had one of these systems installed, against my advice, and they have found that it doesn't really work and wasn't a worthwhile investment . Their house is large, and is not a conventional design . The potential harm caused by breathing in fibreglass insulation is still an unknown, but in the next 20 years, its effects potentially could be similar to that of asbestos . The fact is that the product isn't old enough to know, and in those situations it is wise to be cautious . Certainly it causes short term problems if you install the stuff without protection . Remember they were saying smoking was safe 60 years ago . There were builders installing the stuff without any form of protection, which may suffer in their old age . The standard filters on the ventillation systems don't prevent the microscopic particles getting through . . Even if they claim that that their finer filters stop 90% of fibre glass, that still means that 10% is still getting through . Home ventillation systems may work ok in 40's to 70's style state type houses, which have a large attic space, which are essentially sealed boxes when the windows are closed . The roofing material makes a difference to their effectiveness, as attics can get very cold being outside the insulation envelope(although this depends on the design of the house), you could be pumping in cold air into your room, and then need more energy to heat the room . I think people are probably better off not having carpet in your house or at least the bedrooms, and opening the windows and regually vacuuming the house with a cleaner with hospital grade filtering . The problem is people kepp their windows closed, allowing spores to develop in the moist warm environment . For a real HRV system see www . dryair . co . nz The HRV that Marc Ellis advertise is not a proper HRV system . The Cleanaire system uses air from the outdoors to ventilate the home, while removing stale air from inside . We installed a Healthaire which is a PPV system like HRV, DVS, MM .	wmoore (6009)
368048	2007-10-05 09:17:00	When I worked in Aussie we had to treat fibre glass exactly the same as we did asbestos, Breathing gear, suits, bagged and tagged, then sent to a specific landfill. And yeah, Open a window. Filtering your air is damn funny though. Lmfao.	Metla (12)
368049	2008-01-08 01:10:00	I will not spam here ever again I will not spam here ever again I will not spam here ever again I will not spam here ever again I will not spam here ever again I will not spam here ever again I will not spam here ever again	dvdasolutions (8445)
368050	2008-01-08 01:27:00	Nice.	Biggles (121)
368051	2008-01-08 01:35:00	Nice. It may pay to come back here,your pic suggests a certain tension arising of late!.New job to much to cope with?	Cicero (40)
368052	2008-01-08 01:42:00	It may pay to come back here,your pic suggests a certain tension arising of late!.New job to much to cope with? Hardly, since the pic dates from my PCW days. I'm an angry man. Anyone will tell you.	Biggles (121)
368053	2008-01-08 01:56:00	Hardly, since the pic dates from my PCW days. I'm an angry man. Anyone will tell you. Your poor wife & children. Tried anger management?? PJ :D :D :D	Poppa John (284)
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