PFTJ 4-Pass (Water)

In 1978, Johnston introduced the first single furnace waterback 4-pass Scotch Marine boiler. Water backed reliability with 4-pass design efficiency? A dream come true.

Downloads & Additional Information:

PFTJ 4-Pass (Water): 50 HP - 80 HP

Downloads

PFTJ 50-80 4-Pass (Water)

PFTJ 50 THRU 80-4-30W (DWG)

PFTJ 50 THRU 80-4-30W (3D Revit)

Additional Information

3- & 4-Pass Boiler Brochure (PDF)

509 Series Model Key Tables (PDF)

3- & 4-Pass Boiler Brochure - Espanol (PDF)

PFT Boiler Manual (PDF)

Efficiency Guarantee (JPG)

Flue Doors Warranty (JPG)

Major Pressure Vessel Warranty (JPG)