Thanks all. The sugar thing might work in some kind of heat pipe. I am looking for an cheep solution with a hose and an existing hot water tank. A tee in the drain line of the tank that then proceeds out the cellar door with a 1/2 white and 1/2 black circulating loop would work. I don't like the idea of throwing the hose in the yard, however, it would work.
I can think of no way to place the hose on the roof and get it to work. If the hose is lower than the tank it conveys hot water to the tank and shuts down the loop current when the sun goes down thus holding hot water in the tank. If I ever figure this out, it will not be cold fusion, however, it could be a nice product. Frank Z -----Original Message----- From: mixent <[email protected]> To: vortex-l <[email protected]> Sent: Tue, Sep 18, 2012 10:48 pm Subject: Re: [Vo]:question about passive solar heat In reply to [email protected]'s message of Tue, 18 Sep 2012 19:42:46 -0400 (EDT): Hi, [snip] >I know of a few locations where it would be nice to have passive solar hot water in the summer. I have noted that a black garden hose in the sun produces hot water. The hose could be placed on a roof. The problem is getting this heat into a storage tank passively. The hot water tank would have to be mounted higher than than the hose. I would like to employ the ordinary basement hot water tank. Hot water rises and will not go down to the basement tank. > Such solar hot water systems are common. Previously the tank used to placed on outside of the roof above the collector. Nowadays, more frequently inside the roof cavity. (both looks and works better). Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
