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I am interested in building a heat exchanger (or heat recovery ventilation system, if that is a better term) from some thin aluminum sheets that I have access to. This would be mostly for fun (practicing my TIG welding), so I won’t be concerned with the cost-effectiveness question that was prominant in some of the earlier posts on this subject.
My concerns are primarily to do with minimizing the possibility of ice buildup in winter where the outgoing warm air is cooled to the dewpoint and then the temperature continues to drop causing ice to form and block the narrow passageways of the air channels. I also have a concern with the possiblity of mold build up in the unit when the outside hot summer air is cooled by the out flowing cooler air from the house – although the dry summers here in Eastern Oregon may minimize this possibility.
Any thoughts constructing one’s own exchanger would be appreciated along with any references to web sites, books, or articles.
I tried to do a bit of research on previous posts on this topic but there seemed to be far more vituperation than illumination…
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I am interested in building a heat exchanger (or heat recovery ventilation system, if that is a better term) from some thin aluminum sheets that I have access to. This would be mostly for fun (practicing my TIG welding), so I won't be concerned with the cost-effectiveness question that was prominant in some of the earlier posts on this subject.
My concerns are primarily to do with minimizing the possibility of ice buildup in winter where the outgoing warm air is cooled to the dewpoint and then the temperature continues to drop causing ice to form and block the narrow passageways of the air channels. I also have a concern with the possiblity of mold build up in the unit when the outside hot summer air is cooled by the out flowing cooler air from the house - although the dry summers here in Eastern Oregon may minimize this possibility.
Any thoughts constructing one's own exchanger would be appreciated along with any references to web sites, books, or articles.
I tried to do a bit of research on previous posts on this topic but there seemed to be far more vituperation than illumination...