Danfoss 065B-8900 ESBE ATA Thermostatic Draft Regulator 3/4" NPT 95-203°F

The Danfoss 065B-8900 ESBE ATA Draft Regulator is a self-contained thermostatic expansion control device designed to regulate the temperature of solid fuel-fired boilers without requiring electrical installation or complicated linkage. This mechanical draft regulator automatically controls combustion air flow by sensing boiler temperature and adjusting the air damper position accordingly.

Key Features:

• 3/4" NPT female threaded connection for secure, leak-free installation directly into boiler waterway
• Fully adjustable temperature range: 95°F to 203°F (35°C to 95°C)
• Self-contained thermostatic control head requires no electrical power
• 2.2 pound-force (10N) damper control for reliable air supply regulation
• Compatible with wood, coal, and other solid fuel boilers
• Includes chain and hooks for draft damper connection
• Robust construction ensures extended service life and consistent performance

The thermostatic control head continuously monitors boiler temperature and automatically adjusts the combustion air supply through a lever and chain mechanism connected to the air damper. This precise control optimizes combustion efficiency, reduces energy consumption, and helps maintain safe operating temperatures in solid fuel heating systems. The compact design allows for easy integration into existing boiler installations.