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  3. Preventive replacement of certain first-generation Hilo thermostats
  • General news, November 9, 2026

Preventive replacement of certain first-generation Hilo thermostats

Montréal – Hydro-Québec will carry out a preventive replacement of certain first-generation Hilo thermostats for baseboard heaters and fan convector units, the vast majority of which were installed before November 2022. Approximately 21,000 customers are affected.

Following a technical assessment, Hydro-Québec concluded that these thermostats pose a very low risk of failure in certain exceptional circumstances, such as during an overvoltage.

Other Hilo-brand thermostats are not affected.

Hydro-Québec will contact the affected customers directly. The preventive replacement will be carried out at no cost and will begin gradually over the next few weeks.

No action is required on the part of customers.

Additional information is available on the Hilo website. 

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