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    R438A substitute for R410A?

    A neighbor bought a new 6K btu GE window unit a couple years ago. Didn't use it until this summer and found it doesn't cool. One year warranty was already out so she bought a new one and asked if I wanted the old one rather than throwing it away, so I took it. It appears to have lost the...
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    Kohler engine ignition help

    13 hp single cylinder CV series Kohler in my mower. Magneto gap set to book spec (.010"). Secondary resistance of ignition module 13K ohms on a spec of 8K to 18K. New NGK plug matching OE Champion. It will fire the plug now and then with plug out and grounded. Same with plug installed...
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    Question for the shop lighting experts

    My shop is 9000 sq ft with about 1500 sq ft of offices, restrooms, etc and 7500 sq ft of work area. 60x150 with 18ft eave height. We built it around 1990 and used 400w HPS fixtures in the work area. Yeah, the color temp *****, but it was built primarily for heavy equipment maintenance and...
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