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Thermosyphoning and Pressure

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Posted by Zack on August 13, 2004, 1:16 pm
 
I am implementing a Theromsyphoning solar water heating system.  The
system I intend to implement will have just two solar panels and a hot
water tank (above the panels).

All the information I can find on these systems includes a cold-water
tank and an expansion tube to that tank.  I have my own cold water
supply outside the house (up a hill), so running an expansion pipe
will not be suitable and I would like not to have a second tank in the
house.

The cold supply does not have any one-way valves, so I am considering
if this will work as my expansion as well?  I would like to know if
this system would work under the pressure from the outside tank, with
no expansion pipe.

If this will not work are there any other alternatives to use.  I have
no access to electricity and the temperatures do not drop below
freezing.

Posted by Ecnerwal on August 13, 2004, 1:43 pm
 
 zacks@xsmail.com (Zack) wrote:


Should be fine.

--
Cats, Coffee, Chocolate...vices to live by

Posted by Mike Smith on August 17, 2004, 9:13 pm
 Check your local by-laws - some require a seperate expansion pipe.

Also, the tank should be suitable for the pressure generated by the head of
water - otherwise, something - probably the base - will go pop.

Mike


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