An Ontario law giving tenants the explicit right to install air conditioning units is set to come into effect Wednesday, in the midst of a stifling heat wave.

The section of a 2023 law will be in force as of July 1 and allows tenants to install and use a window air conditioner or portable unit if their landlord doesn’t supply air conditioning, subject to certain conditions.

It is one of a host of regulatory and legal changes that take effect Canada Day, which also include changes to landlord and tenant rules that some advocates say make evictions easier and stack the deck against tenants.