Jan 13 - I spent half the day getting told I need a double wall heat exchanger for the solar hotwater system and then researching one. I'm thinking the inspector didn't want to do the research and just made crap up to make it not his problem so I may hit the library and read the pertinent code myself.
The old big coil of pex heat exchanger was about $200. I have a request in for pricing on a few models of double wall flat plate heat exchangers. Add in a $70 pump and a sensor to know when to turn that pump on and I have my doubts that the new requirement will be cheaper.
Hopefully it's comparable just in case the province really did make 3/4 of the commercial installations illegal...
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