tag:blogger.com,1999:blog-5555966203723521942.post5752076862271501125..comments2024-03-19T10:13:15.494-07:00Comments on Green Building in Denver: The Future of Residential Heat Recovery is DuctlessKevin Dicksonhttp://www.blogger.com/profile/13116311693621338347noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-5555966203723521942.post-59726289530868989692015-02-06T09:25:10.265-08:002015-02-06T09:25:10.265-08:00Kevin,
I used to live on the eastern plains of CO...Kevin,<br /><br />I used to live on the eastern plains of CO and now moved to central KS. I am building a 3,500 ft2 house and was thinking of using these units instead of a whole house unit (mainly because I don't trust the installers around here). I will have five bedrooms. Do you think I need one in each bedroom, or could I just put two on each floor? Thanks.<br /><br />TimAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-59408462773465806332015-01-31T11:38:27.657-08:002015-01-31T11:38:27.657-08:00It isn't permanently installed yet, but I will...It isn't permanently installed yet, but I will be installing it at 10,600 ft. in Colorado, which will be like an acid test.Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-91908706927990844152014-12-08T20:11:19.575-08:002014-12-08T20:11:19.575-08:00any updates? How is it working out for you? any updates? How is it working out for you? Unknownhttps://www.blogger.com/profile/03703012055713136294noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-68877866881121080882014-09-04T04:12:00.422-07:002014-09-04T04:12:00.422-07:00Note - 0.1 ACH50 is 30 times lower than the 2012 E...Note - 0.1 ACH50 is 30 times lower than the 2012 Energy Code.<br /><br />An amazing result, but maybe there is a point where a house is too tight.Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-26144200782781950452014-09-04T03:55:54.924-07:002014-09-04T03:55:54.924-07:00Update - I found a house that is borderline "...Update - I found a house that is borderline "too tight". It scored a 0.1 ACH50:<br />http://www.homepower.com/articles/home-efficiency/design-construction/extreme-efficiencyKevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-12147897235515228082014-09-04T03:51:26.667-07:002014-09-04T03:51:26.667-07:00In quantities of 10, the price would be roughly $4...In quantities of 10, the price would be roughly $400 each.Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-73963288907603524502014-07-29T08:55:50.059-07:002014-07-29T08:55:50.059-07:00Kevin,
Do you mind sharing what the price quote ...Kevin, <br /><br />Do you mind sharing what the price quote was in quantity?John Semmelhackhttp://www.think-little.comnoreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-18381801701325296802014-07-29T08:29:31.220-07:002014-07-29T08:29:31.220-07:00Al,
If you build a tight house, the air can get u...Al,<br /><br />If you build a tight house, the air can get unhealthy inside. Therefore you need ventilation. In the winter, ventilation air is cold, and this device uses the heat contained in the outgoing air to preheat the incoming fresh air.<br />http://www.popularmechanics.com/home/improvement/interior/1275121Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-62250655687259975822014-07-29T08:24:34.093-07:002014-07-29T08:24:34.093-07:00Right, this is like the original Lunos e2. The ne...Right, this is like the original Lunos e2. The newer Lunos, called the eGO, is completely self-contained, but ridiculously expensive.<br /><br />But realize, no house is tight enough to REQUIRE these to be electrically paired like the e2. (Which is even crazier, price-wise) Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-57776599905194137912014-07-25T22:36:21.404-07:002014-07-25T22:36:21.404-07:00Hey Kevin, please link to what this contraption do...Hey Kevin, please link to what this contraption does. I'm trying to grasps it's purpose.Al Williamsonhttp://leadinglandlord.comnoreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-23506533334099118222014-07-13T07:21:24.752-07:002014-07-13T07:21:24.752-07:00Pairs? Is'nt this unit doing intake and exhaus...Pairs? Is'nt this unit doing intake and exhaust through the same unit? The newest Lumos unit does just that, and I thought that was what this knock-off was doing since it was not sold in pairs. But you are saying no that this is a single direction reversing unit?lavarderahttps://www.blogger.com/profile/07241073948874188058noreply@blogger.comtag:blogger.com,1999:blog-5555966203723521942.post-43630726821646860442014-06-09T19:27:33.955-07:002014-06-09T19:27:33.955-07:00Here's why I don't think two fans need to ...Here's why I don't think two fans need to be synchronized:<br /><br />I did a quick thought experiment on the issue:<br />In a Pretty Good House (PGH), total airflow would be nearly double if the two fans are "fighting" each other instead of synchronized. That's because a PGH isn't nearly tight enough to prevent these fans from pushing and pulling 64 cfm through its walls and ceiling.<br />Q. But isn't all that flow is coming through cracks in the house?<br />A. Yes.<br />Q. Doesn't that affect the amount of heat recovery?<br />A. Probably not, because the materials in the walls act as a regenerative heat exchanger when subjected to a cycling air flow regime.<br />Q. Isn't that 64 cfm going to cause problems in the walls?<br />A. No. It's only 64 cfm. In a PGH, that much air cruises through whenever it gets slightly windy. But when it's forced and cycled, at least you get that fresh air where you want it (bedrooms), when you want it (while sleeping).Kevin Dicksonhttps://www.blogger.com/profile/13116311693621338347noreply@blogger.com