<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi, Reuben—<div class=""><br class=""></div><div class="">Yes, and the warm air from the registers under windows helped dry off condensed water running down the interior side of the glass, which in turn reduced the stains and mold on frames and sills.</div><div class=""><br class=""></div><div class="">Best,</div><div class=""><br class=""></div><div class="">Mike</div><div class=""><br class=""><div><div class="">On Mar 28, 2016, at 3:01 PM, home-nrg <<a href="mailto:home-nrg@dnaco.net" class="">home-nrg@dnaco.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="">Reuben,<br class=""><br class="">You might check out the research done by Build America, some<br class="">years back.<br class=""><br class="">As I recall,they were able to design a single family house<br class="">with all of the ducts in a central wall cavity and, by using<br class="">a more a focused grill, place the supply grill on the inside<br class="">(duct) wall and through conditioned air to the far wall. The<br class="">arrangement conditioned the room as quickly as a similarly<br class="">sized system with supplies on the outside wall.<br class=""><br class="">Check their reports; don't trust my memory.<br class=""><br class="">I hope this is helpful.<br class=""><br class="">Bob Klahn<br class=""><br class="">----- Original Message Follows -----<br class="">From: Reuben Deumling <<a href="mailto:9watts@gmail.com" class="">9watts@gmail.com</a>><br class="">To: Greenbuilding <<a href="mailto:greenbuilding@lists.bioenergylists.org" class="">greenbuilding@lists.bioenergylists.org</a>><br class="">Subject: [Greenbuilding] forced air heating vent placement<br class="">Date: Mon, 28 Mar 2016 10:55:47 -0700<br class=""><br class=""><blockquote type="cite" class="">There seems to be a tradition of placing these all the way<br class="">out at exterior walls, and often under windows. Does this<br class="">hark back to when windows were the coldest surfaces and<br class="">this would--in combination with a floor vent--make for<br class="">convective currents which could then be relied on to mix<br class="">the warm air better?<br class="">I'm in the process of adding four inches to the inside of<br class="">the exterior walls on a 140 year old farmhouse and blowing<br class="">a ton of cellulose into those deeper cavities. There will<br class="">be exterior storm windows and the house overall should end<br class="">up pretty tight and cozy even without the furnace turned<br class="">on. I have to move some of these vents as they are too<br class="">close to the existing wall; my temptation is to shorten<br class="">the ducts, not just by a few inches but perhaps by a<br class="">bunch. I'm curious for any thoughts or suggestions you<br class="">might have.<br class=""><br class="">Thanks very much.<br class=""><br class="">Reuben<br class=""><br class=""><br class="">_______________________________________________<br class="">Greenbuilding mailing list<br class="">to Send a Message to the list, use the email address<br class=""><a href="mailto:Greenbuilding@bioenergylists.org" class="">Greenbuilding@bioenergylists.org</a><br class=""><br class="">to UNSUBSCRIBE or Change your List Settings use the web<br class="">page<br class=""><br class=""></blockquote><a href="http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org" class="">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org</a><br class=""><br class="">_______________________________________________<br class="">Greenbuilding mailing list<br class="">to Send a Message to the list, use the email address<br class="">Greenbuilding@bioenergylists.org<br class=""><br class="">to UNSUBSCRIBE or Change your List Settings use the web page<br class="">http://lists.bioenergylists.org/mailman/listinfo/greenbuilding_lists.bioenergylists.org<br class=""><br class=""><br class=""></div></div></div><br class=""></div></body></html>