Ventamatic XXFIRESTAT 10-Amp Adjustable Programmable Thermostat for Attic Ventilators | Firestat 183°F Cutoff

Overview

The Ventamatic XXFIRESTAT 10-Amp Adjustable Programmable Thermostat helps you manage attic venting with a simple, precise approach. Designed to replace existing thermostats in roof and gable vent systems, this unit promotes balanced attic temperatures by turning power attic ventilators on and off based on the temperature you set.

Smart temperature control

The Firestat feature automatically cuts power when the attic hits 183°F, helping prevent excessive heat buildup. The thermostat is adjustable with a screwdriver, offering a reliable bi-metallic switch you can tailor to your climate. The operating range covers roughly 60–150°F, with a typical differential around 15°F, giving you consistent cycling without over-stressing the fan.

• FIRESTAT mechanism cuts off at 183°F to reduce heat transfer and energy waste
• ADJUSTABLE THERMOSTAT via simple screwdriver adjustment
• ENERGY EFFICIENT operation for attic ventilators across a broad range
• REPLACEMENT THERMOSTAT that can control up to three units, up to 10 amps total
• COMPACT 4.8 x 2.5 x 4.8 inch enclosure with a 10 year warranty

Designed for ease of installation, this thermostat supports the energy-conscious homeowner who wants balanced attic temperatures and improved ventilation performance. Use it with existing power attic ventilators to create a responsible cooling cycle that adapts to seasonal changes or hot sunny days.

Real world use cases

In a single-story home with an attic that tends to overheat in summer, the Firestat can trigger venting as the sun warms the space, then shut off once the air cools. For multi-fan setups, you can manage the load across up to three vents, ensuring the system runs within its 10 amp limit. The simple adjustment procedure means you can fine tune thresholds after installation as seasons shift.

Specifications and warranty

• Temperature range approximately 60–150°F
• 15°F differential typical
• Firestat cutoff at 183°F
• Controls up to three units, total load not to exceed 10 amps
• Enclosure size 4.8 x 2.5 x 4.8 inches; 10-year warranty