The ENDURA+ is a condensing firetube boiler for variable primary flow systems. Fulton’s patent-pending stress reliever is designed to eliminate the thermal stresses that conventional designs pass to the most critical components.
Models up to 6,000 MBH fit through a standard doorway, access panels detach in seconds, and the boiler can be supplied knocked down for retrofits. Turndown runs from 10:1 to 30:1 across the range.
Model
EDR+2500
Size
2,500 MBH
Type
Hydronic boiler
Input capacity (MBH)
2,500
Water content (gal)
80
Pressure drop at 20°F ΔT (psi)
3.2
AHRI thermal efficiency (%)
96.8
Turndown ratio
12.5:1
Height (in)
80
Width (in)
30
Depth (in)
73
Operating weight (lb)
3,267
Clearance, sides (in)
24
Clearance, front (in)
36
Clearance, top (in)
18
Clearance, rear (in)
24
Fuel options
Natural gas, propane
Approvals shown by Fulton
AHRI, ASME, ETL, USGBC
Efficiency (per Fulton)
Up to 96.8% AHRI
Fulton lead time, as listed
4-6 weeks
Warranty: Warranty is administered directly by Fulton under its standard commercial terms.