Mercury thermostats and legacy controls

Identify old thermostats/switches that may contain mercury and remove/dispose of them without breakage or ordinary trash disposal.

VERT / GREEN = documenter/entretenir · JAUNE / YELLOW = mesurer/vérifier · ROUGE / RED = arrêter et faire sécuriser/valider.

Mercury ampoule/capsule broken
Isolate the area and follow local mercury-spill guidance; do not vacuum. Old thermostat being replaced
Remove intact and use local hazardous-waste/recycling channel. Unknown legacy control
Identify before demolition or disposal. Controls inventory current
Document model/location before HVAC work.

What the professional checks

Identify mercury-containing products
Coordinate safe local removal/disposal

Official sources

Canada — produits contenant du mercure

Checked: 2026-08-22