I went and saw some more examples myself. Shades and blinds do seem to be given ratings such as R Value (keeping the heat in) and some sort of Solar Coefficient (the lower the better, for keeping the solar heat out when not wanted), as well as a person having to define how much opacity they want.
Hunter Douglas had their own battery-powered device (rather than just sending them to a third party like Insolroll), so I guess there's more than one way to do the powered-shade thing. I can second your pricey-side conclusion. On Tue, 10 Feb 2004 09:39:44 -0700, you wrote: >I have seen these or something like these, at a local home and garden show, >and they could be set up to open and close automatically, depending on the >time of day ( I think that they were working on a controller that worked with >a light sensor, shutting them after the light reached a certain brightness or >darkness ). They are very secure, and on the pricey side. > >Greg H. > Subject: Re: [biofuel] Rope curtains was: First aid for house owners. > > > I found these: > > http://www.insolroll.com/rolling/index.html > > which advertise that they are "European Style" Shutters. > > It occurrs to me that, with the sort of motorization this company > provides (generally they tell me their thing is motorization of other > people's shades), one could try to program a computer to open and shut > the screens and shades and shutters for maximum energy rejection or > retention, depending on time-of-year factors, > weather-detected-that-day, desired lighting by the home occupant, etc. Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/index.php?list=biofuel Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
