Per Canadian S536 standards (which parallel NFPA 72 testing frequencies), how often must all heat detectors be tested?

Question: Per Canadian S536 standards (which parallel NFPA 72 testing frequencies), how often must all heat detectors be tested?

Answer options: ✅ Every year (100%)

• Only once every two years (50%)
• Only when the building is sold
• Only if the system is addressable

Correct answer: Every year (100%)

Explanation: Under S536 (Inspection), heat detectors can be tested with a heat source. NFPA 72 provides similar guidance, but the ULC standard specifies the rate of rise or fixed temp application.