Do I need CSA Approval to Build and Sell Solar Air Heaters?
Do I need a CSA approval and or permits to build, sell and install solar air heaters in Canada?
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That's an interesting question, but one that we are not really positioned to answer with confidence. I did speak with one manufacturer that thought it wasn't necessary to have CSA certification unless there is an electrical component to it, but I wouldn't rely on that. I've put in a request for that information but you may wish to do so as well, so here's their website contact page, I'll report back when I have something and please do the same . Best regards. https://www.csagroup.org/contact/