> > >1/2" Dura PEX -- $0.39 per foot in big rolls. > >They also have 7/8" for $0.64 per foot -- don't know >which you want. > >I seem to remember the runs are laid out on 4" centers. >
Call your local plumbing supply store. I ended up getting a "package deal" only because it was cheaper to buy the Polaris (most energy efficient propane water heater at the time). The pex itself is relatively cheap. Any extra can be used for regular plumbing. Actually I am replacing all the copper now in the house with pex as soon as I can. Our water is naturally acidic and the copper is dissolving into the water supply. The actual installation of the pex is very simple. It seems to be strong enough to handle concrete made with pea gravel, so I shouldn't worry too much about it being fragile. The fittings however, (which should be out of the floor) may leak eventually and need attention of a plumber. I do have problems with some of mine in the fall, after a summer of disuse. I would consider an instant water heater for such a small building.- the kind that heat only 2 gallons at a time, but very quickly. Supposedly very efficient since you aren't paying for a 40 gallon tank of hot water to be sitting around. Haven't finished reading all the digests, but the cooling part would concern me. Having installed in-floor radiant, I must also pay for ducts for A/C. Probably installing 10 ft ceilings and ceiling fans has been the best thing for summer comfort. We have the super insulated, glazing on the south side, 4ft overhang, etc. I think I would prefer individual window units for AC in a larger construction- so everything isn't being cooled unless there is a need. Preheating the water with a solar system of some type would be the best, but I don't know if you could get a donation of the needed materials. The trend on this at the Solar Decathalon was a specially manufactured roof mounted vacuum tube. I am not sure that it is superior to a larger system constructed of black tubing, recycled hot water tanks, or some other "homemade system". Good Luck Caroline Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
