Johnston Boiler

Top quality boiler manufacturing since 1864!

  • About
    • About
    • History
    • Vision & Mission
    • News & Events
    • Why Choose JBC?
      • Why choose JBC?
      • Green Technologies
      • Education & Training
    • Photo Gallery
      • Photo Gallery
      • Factory Tour
      • Customer Installations
  • Products
    • Industrial Boilers
    • 509 Series Boiler
    • XID Scotch Marine Boiler
    • 358 Series Boiler – Ohio Special
    • 309 Series Boiler
    • WHR Series Boiler
    • Burners
    • Ancillary Equipment
  • Customer Tools
    • Resources
    • General
      • General
      • Glossary
      • Boiler Room Air Supply
      • Installation
      • Natural Gas Prices
      • Properties of Air
      • Turndown
      • Water Quality
    • Product Knowledge
      • Product Knowledge
      • Boiler Guide Specifications
      • Boiler Formulas
      • Boil-Out Procedure
      • Boiler Trim
      • Emissions
      • Firetube Boiler Advantages
      • Hot Water Boiler – Policy Statements
      • Johnston Burner Maintenance
      • JBC Feedwater Valve
      • Scale Deposits and Efficiency Loss
      • Stack Design – Effects on Burner
  • Parts & Service
  • Contact Us
  • Find A Rep
  • File Access
    • Login / Logout
    • Files
Find A Rep
Rep Login

Products

Built to last.

Home > Products > 509 Series Boiler

509 Series Boilers

For many years, there were two choices in the industry - a 4-pass dry backed boiler, or a 3-pass water backed boiler. A 4-pass would have a higher efficiency and higher maintenance costs associated with frequent refractory repair, while the 3-pass water backed required less maintenance and offered less efficiency. That all changed in 1978 when Johnston introduced the first packaged 4 pass water backed boiler. Now, a customer could have the best of both world’s – water backed reliability with 4 pass design efficiency.

 

PFTA 4-Pass (Steam)
PFTA 4-Pass (Water)
picture of a 4 Pass Steam Boiler
PFTJ 4-Pass (Steam)
picture of a 4 Pass Steam Boiler
PFTJ 4-Pass (Water)
PFTA 3-Pass (Steam)
PFTA 3-Pass (Water)
PFTS 3-Pass (Steam)
PFTS 3-Pass (Water)
PFTX 4-Pass (Steam)
1 2 Next »
  • About
  • History
  • Vision & Mission
  • News & Events
  • Green Technologies
  • Why choose JBC?
  • Education & Training
  • Customer Installations
  • Photo Gallery
  • Factory Tour
  • Products
  • 509 Series Boiler
  • XID Scotch Marine Boiler
  • 358 Series Boiler – Ohio Special
  • 309 Series Boiler
  • WHR Series Boiler
  • Burners
  • Ancillary Equipment
  • Resources
  • General
  • Product Knowledge
  • Contact Us
  • Johnston Boiler
  • 300 Pine Street
    P.O. Box 300
    Ferrysburg, MI 49409-0300
  • P (616) 842-5050
  • F (616) 842-1854
  • Rep Login