Inside Zihan Fireplace’s Dual Overheat Protection System
Because real safety starts from inside the machine.
In electric heating, true safety doesn’t come from luck — it comes from design.
At Zihan Fireplace, every unit is built with a Dual Overheat Protection System, ensuring that even in extreme misuse conditions, the fireplace automatically shuts down before any danger occurs.
This system combines two independent layers of defense — a temperature-sensitive metal sensor and a thermal fuse — working together to deliver peace of mind for both homeowners and professional partners.
1. The First Guard: Precision Temperature Sensor
At the heart of the system lies a small but powerful bimetal sensor.
This component is made from two metal layers with different thermal expansion rates.
When the fireplace operates normally, the sensor remains flat — keeping the circuit connected.
But once the internal temperature exceeds the safe limit (around 130°F / 54°C), one side of the metal expands faster than the other, causing it to bend and trigger a disconnection.
This immediate reaction cuts off power before heat can accumulate, preventing damage to internal components and eliminating any risk of overheating.
2. The Second Guard: Thermal Fuse Backup
In the rare case that the sensor fails or becomes blocked by debris, a thermal fuse stands as the final safeguard.
This fuse is designed to melt and disconnect power permanently once the temperature exceeds its rated threshold — a last line of defense to ensure total protection.
Unlike the resettable sensor, the fuse does not recover automatically; it requires replacement by a technician, guaranteeing the issue is inspected before the fireplace is reactivated.
Together, the two layers form a fail-safe chain, making overheat-related fire risk virtually impossible.
3. Tested for Real-World Conditions
To validate our design, Zihan Fireplace regularly conducts blocked vent and misuse simulations, replicating the most extreme conditions.
In these tests:
✔️ The temperature sensor detects heat rise instantly
✔️ Auto cutoff occurs around 130°F (approx. 54°C)
✔️ The backup fuse activates only if the first layer fails
This ensures redundant protection, verified through vibration, aging, and overload testing — all performed before shipment.
👇 Watch the Safety Test Video on YouTube
4. Why It Matters for B2B Partners
For distributors, retailers, and builders, the Dual Overheat Protection System represents more than just safety — it’s risk control and brand reliability.
A well-engineered safety circuit protects not only the user, but also your reputation as a trusted supplier.
With this system, every Zihan Fireplace product offers certified safety performance aligned with CE, CSA, and other global standards.
Conclusion: Safety You Can See, Protection You Can Trust
When it comes to electric heating, visible fire is easy — invisible protection is what sets great brands apart.
At Zihan Fireplace, every product is engineered for stability and peace of mind.
Because true innovation doesn’t just create warmth — it ensures it’s always safe.