Building permits must be submitted for the installation of Solar Domestic Hot Water Systems. The Ontario Building Code distinguishes between Solar Domestic Hot Water (SDHW) systems that are factory-packaged and non-packaged systems.
Non-packaged SDHW systems
A Professional Engineer licensed in Ontario shall certify the proposed non-packaged Solar Domestic Hot Water (SDHW) system conforms to the intent of CSA International Technology Information Letter (TIL) MSE-45 as amended. Also with the referenced standards applicable to SDHW components listed in Table 1 of the TIL, and with the intent of the requirements for SDHW Systems in the Ontario Building Code. Application documents shall include a statement of compliance to the above.
Factory-packaged SDHW systems
Packaged SDHW systems in possession of a Certificate of Compliance from CSA International in accordance to TIL MSE-45 and CSA F379.7-88 SDHW Systems (Liquid to Liquid Heat Transfer) shall be exempt from the above