Ajax boilers perform dependably and quietly, providing commercial, institutional, and industrial buildings with space heating, domestic, and process hot water. Inclined tubes provide uniform heat transfer, resulting in high fuel economy and long boiler life.

Cutaway View of Boiler
80% Efficiency

2" OD tubes (steel or copper) are rolled into large headers on both ends producing excellent boiler circulation. 2" OD tubes are less restrictive than smaller OD tubes. Our non-proprietary tubes are less costly for tube replacement. Ajax's straight tube design allows for easy inspection of tube conditions.

1. Large headers on Both Ends
   • Excellent boiler circulation
   • Standard working pressure 125 psig
   • 5/8" pressure vessel quality steel
   • Removable front and rear head plates
   • ASME Code construction
   • Large water volume
2. Full Capacity Relief Valve
3. 2" OD Inclined Steel Tubes
   • Uniform heat transfer
   • Inclined to eliminate air bubbles
   • Excellent circulation
4. Heavy Gauge Steel Jacket
   • Galvanized steel for corrosion resistance on the inside as well as the outside
   • Mirror finish stainless steel or paint available
5. High Temperature Cast Refractory
   • Interlocked modular panels ensure a tight leakproof firebox
6. Insulation
   • 3" layer felt insulation surrounds combustion chamber
   • Minimum heat loss through jacket
7. Factory Assembled Gas Train and Controls
   • Reduced installation time
   • All codes available
8. Rugged Steel Frame
   • Long boiler life
   • Seismic design available
9. Cast Iron Upshot Burners
   • Quiet ignition
   • Years of trouble-free service
10. Gas pilot with Electric Ignition
    • Low stand by losses
11. Removable Firebox Door
    • Full width access to combustion chamber
    • Bolted on all atmospheric boilers
    • Segmented on larger units
12. Straight "See Through" Tubes
    • Makes waterside easy to inspect
    • Mechanical cleaning can be performed
    • 2" OD tubes readily available - lower replacement cost than proprietary tubes
    • Rolled into deep headers for large water volume
13. Hand Holes
    • For waterside inspections