Ottawa is feeling the heat — literally — as another stretch of record-breaking temperatures has tenant advocacy groups and medical experts renewing calls for a maximum indoor air temperature bylaw across Ontario.
The Problem With No Ceiling
Most Ontario municipalities, including Ottawa, already require landlords to keep apartments heated to a minimum temperature during the colder months. But there's no equivalent rule capping how hot a unit can get in summer. As extreme heat events become more frequent and more intense, advocates argue that gap is putting renters — especially seniors, young children, and people with chronic health conditions — at real risk.
Without a maximum temperature standard, tenants in older buildings without air conditioning have little recourse when their units turn into ovens during a heat wave. Housing advocates say that needs to change, and they want municipalities like Ottawa to lead the way rather than wait for the province to act.
Why This Matters for Ottawa
Ottawa isn't immune to the extreme heat trend. The city has seen an increasing number of heat warnings issued by Ottawa Public Health in recent summers, with humidex values regularly pushing well past 30°C. For renters living in older apartment buildings — common throughout neighbourhoods like Centretown, Vanier, and parts of the west end — a lack of central air conditioning can turn a heat wave into a genuine health hazard.
Tenant advocates argue that a maximum indoor temperature bylaw would give Ottawa renters a concrete standard to point to when asking landlords for cooling solutions, whether that means portable air conditioning units, building upgrades, or access to cooling centres. Right now, the responsibility largely falls on tenants to fend for themselves, and on the city to open public cooling centres and splash pads during the worst of the heat.
What Advocates Are Asking For
Medical experts backing the push say a maximum temperature standard is a public health issue, not just a comfort issue. Heat-related illness — including heat exhaustion and heat stroke — disproportionately affects vulnerable populations who may not have the means to relocate or install air conditioning on their own.
Advocacy groups want municipalities to treat extreme heat with the same urgency as extreme cold, arguing that a hot apartment in July can be just as dangerous as a cold one in January. They're calling on city councils across the province, including Ottawa's, to study and adopt enforceable maximum temperature rules for rental housing.
What Happens Next
For now, no formal maximum heat bylaw exists in Ottawa. But as summers grow hotter and more unpredictable, pressure is mounting on city council to consider one. Renters dealing with extreme indoor heat this summer can still turn to Ottawa's public cooling centres and splash pads for relief while the broader policy conversation continues.
Source: Global News Ottawa
