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stmbtwle

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Reply with quote  #271 
Bruce,

Instead of the hydro grid it would be easier to install an auto heater core in your output duct and pump water through it. This would take out a lot of the heat and move it to storage.

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Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay

Bruce

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Reply with quote  #272 
I already have a bunch of copper pipe left over from other projects, including 3 foot long 1/2 inch, short pieces of 3/4 inch and tees to make the grid, so the cost of doing so is very low...and may not even be necessary. I think the grid would be behind the screens and will only be useful for excess heat removal and use.  My plan now is to do nothing but plan the collector to allow installation of the grid if it is needed.  I think the automotive heater core would restrict the airflow to much and to often? I have always wanted to try radiant heat and this is the perfect place to do it when I remodel the room, including replacing the flooring.
stmbtwle

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Reply with quote  #273 
The heater core would would of course restrict airflow some but everything's a tradeoff.  CWWilson used them and was happy with them.  However if you already have the materials for the tube grid, that is probably the way to go.
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Solar is like the wind. It may be free, but putting it to work isn't!
Willie, Tampa Bay
gbwillson

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Reply with quote  #274 
If you used a heater core, you could also use a 12V fan, like a transmission fan to help boost the flow through the core. 

Greg in MN
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