Product Overview

Designed for variable primary flow systems, Fulton’s ENDURA+ firetube condensing boilers represent a revolution in firetube condensing boiler technology.

Whereas conventional boiler designs transfer stresses directly onto the most critical components, Fulton’s patent-pending stress reliever completely eliminates these stresses and significantly increases boiler longevity.

ENDURA+ provides industry-leading performance without sacrificing durability.

Key Features

•     Thermal Stresses Virtually Eliminated
•     Durable Stainless Steel Firetube Heat Exchanger
•     Up to 15:1 Turndown; O2 Compensation
•     Compact Footprint – Fits Through a Standard Doorway (Up to 6MM BTU/hr)
•     Designed for Variable Primary Flow

Size Range:
2,500,000 - 12,000,000 BTU/HR

• 2,500,000 BTU/HR
• 3,000,000 BTU/HR
• 4,000,000 BTU/HR
• 5,000,000 BTU/HR
• 6,000,000 BTU/HR
• 8,000,000 BTU/HR
• 10,000,000 BTU/HR
• 12,000,000 BTU/HR

Fuel Options: Natural Gas, Propane

Specifications & Dimensions