We speak HVAC so you don't have to
CONNECT with us!

our tools and detailed reports
can help you choose the best
furnace, boiler, heat pump or
central air conditioner.

Find Local Contractors

1. I need a new:

2. My zip code is:

Patterson-Kelley Boilers

Updated: Dec 17, 2015
By Gary Sprague
Write a review of Patterson Kelley

Patterson-Kelley, now known as Harsco Industrial Patterson-Kelly, is an international provider of water heaters and hot water boilers for commercial buildings including hospitals, offices, and schools. Harsco Industrial Patterson-Kelley is headquartered in East Stroudsburg, Pennsylvania, and is a division of Harsco Corporation (NYSE:HSC), which has over 200 operating locations in 35 countries. Harsco Corporation reported revenue of approximately $2.07 billion in 2014.

Corporate History

Founded in 1880 by Benjamin F Kelley, the company first started producing feed water heaters. The Patterson part of the company name was added in 1917 when the company merged with Frank L Patterson and Company. In 1974, after acquisition by Harsco Corporation, Patterson-Kelley continued to develop its products and in 1987 entered the gas-fired commercial boiler industry. In 2009 the Patterson-Kelley name was changed to Harsco Industrial Patterson-Kelley.

Product Lines

Harsco Industrial Patterson-Kelley manufactures a large variety of water heaters and condensing, non-condensing, and dual fuel hydronic boilers. The company's P-K Mach condensing boiler has an efficiency of up to 96% with actual net thermal efficiencies of up to 99%, and the P-K Sonic boiler is 97% efficient. There are also outdoor and dual fuel versions of the P-K Mach. The unit is designed to fit through a 36-inch doorway and the largest models are equipped with wheels for easy installation.

The company's direct water heaters are designed to save space while providing up to 96% efficiency. Five indirect water heaters are also available.





How to find an HVAC Contractor

FurnaceCompare's free Find a Contractor tool can help you find qualified pre-screened contractors. Every contractor in our database has been screened for a clean credit and legal history, and has been in business for at least three years.

Contacting Patterson Kelley

Patterson-Kelley Co
P. O. Box 458
East Stroudsburg, PA 18301

Phone: (877) 728-5351
Fax: (570) 476-7247


Harsco Industrial Patterson-Kelley has a 5-10-5 warranty on boilers which is a 5-year limited warranty on heat exchanger, a 10-year warranty against thermal shock failure, and a 5-year warranty on the burner. Patterson-Kelley guarantees the highest quality of all components, material and workmanship related to the construction of each boiler. The company therefore offers extended, non-prorated guarantees on products.

Copyright 2002 - 2016 furnacecompare.com