What Patterson-Kelley does

Patterson-Kelley is a U.S. manufacturer of commercial hydronic boilers, water heaters, and fabricated heating systems, founded in 1880 and operating today as a subsidiary of SPX Technologies (NYSE: SPXC) under the legacy name Harsco Industrial Patterson-Kelley. The company is headquartered in East Stroudsburg, Pennsylvania (with operational address at 250 Eastmans Road) and employs 101–250 people. Its portfolio spans condensing boilers (P-K MACH, SONIC, STORM, SOLIS), non-condensing boilers (P-K MODU-FIRE FD, THERMIFIC VELOX), direct-fired water heaters (P-K SOLIS W-Series, HiDRA, SONIC SCD, THERMIFIC VELOX W, MODU-FIRE FD W), indirect-fired water heaters (P-K COMPACT, DURATION III, MACH 'n' ROLL), electric heat pumps (P-K EvoHP), and intelligent controls (NURO with NURO Connect remote monitoring, ENVI). It is also developing emerging technologies including hybrid systems and carbon capture solutions for commercial applications.

The company sells engineered equipment primarily to mechanical contractors, specifying engineers, and building owners across seven verticals — Education, Healthcare, Commercial/Office, Hotel & Casino, Military & Government, Light Industrial, and Stadiums & Sporting Venues. Pricing is quote-based and not publicly disclosed; contracts are project-based and frequently multi-year. Distribution is through a nationwide independent sales representative network (accessed via the company's Rep Locator) complemented by direct website contact. The business model is predominantly hardware sales (boilers, water heaters, controls, accessories, replacement bundles, fabricated modular systems), with NURO Connect introducing a thin layer of post-sale remote monitoring and service alerting. Geographically, Patterson-Kelley primarily serves North America, with documented project activity in South Korea through U.S. military procurement channels.

Name

Patterson-Kelley

Legal name

Patterson-Kelley

Website

https://harscopk.com

Company type

Private

Founded year

1880

Operating status

Operating

Headcount range

101–250 employees

Short description

Patterson-Kelley, founded in 1880 and a subsidiary of SPX Technologies, manufactures commercial hydronic boilers, water heaters, and intelligent controls for verticals including education, healthcare, hospitality, military, and stadiums in North America.

Ownership category

akta.pro rank

Product category

Commercial Heating Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industries

Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH), Compressors, Refrigeration Components & Condensing Units (IMADANAG)

Keywords

• Commercial boilers
• Commercial water heaters
• Hydronic heating systems
• Boiler control systems
• Fabricated heating equipment

Headquarters

HQ city

East Stroudsburg

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Commercial Boiler Sales: Sale of commercial boilers including condensing and non-condensing models for new construction and retrofit projects.
2. Water Heater Sales: Direct and indirect water heaters including commercial and industrial applications.
3. Control Systems: Intelligent control systems including NURO and ENVI for facility management.
4. Replacement Parts and Bundles: Custom replacement bundles for existing equipment including tube bundles for P-K Compact and legacy products.
5. Accessories: Storage tanks, pumps, and condensate neutralization kits.
6. Fabricated Systems: Modular packaged systems for achieving high efficiency levels and maintaining boiler reliability.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Patterson-Kelley manufactures and sells commercial hydronic boilers (condensing and non-condensing), commercial water heaters (direct-fired, indirect-fired, and electric heat pump), intelligent control systems (NURO, ENVI) with remote monitoring, modular fabricated systems, and supporting accessories such as storage tanks, pumps, and condensate neutralization kits. Offerings are sold to building owners, mechanical contractors, and engineers in commercial verticals including education, healthcare, hotels, military, and light industrial facilities.

Product overview

Patterson-Kelley provides a comprehensive portfolio of commercial heating solutions, organized into distinct product categories rather than a single unified platform. The core product lines include commercial condensing boilers (P-K MACH, P-K SONIC, P-K STORM, P-K SOLIS) and non-condensing boilers (P-K MODU-FIRE FD, P-K THERMIFIC VELOX); water heaters across three technologies: direct-fired (P-K SOLIS W-Series, P-K HiDRA, P-K SONIC SCD, P-K THERMIFIC VELOX W Series, P-K MODU-FIRE FD W Series), indirect-fired (P-K COMPACT, P-K DURATION III, P-K MACH 'n' ROLL), and electric heat pump (P-K EvoHP); intelligent control systems (NURO, ENVI) with remote monitoring capability (NURO Connect); and support products including replacement bundles, accessories (storage tanks, pumps, condensate neutralization kits), outdoor solutions, and fabricated modular systems. Emerging technologies include hybrid systems and carbon capture solutions. The company has been in operation since 1880 and is a subsidiary of SPX Technologies.

Differentiator

Problem solved

Functional benefit

Brands

• P-K MACH: Condensing boiler product line
• P-K SONIC
• P-K STORM
• P-K SOLIS
• P-K MODU-FIRE FD
• P-K THERMIFIC VELOX
• NURO
• ENVI
• P-K EvoHP

Products and services

• P-K MACH Condensing Boiler A condensing commercial boiler suitable for new construction or retrofit projects, designed with a small footprint while delivering high output. Targeted at commercial building owners and mechanical contractors specifying efficient condensing boilers.
• P-K SONIC Condensing Boiler A commercial condensing boiler suitable for new construction or retrofit projects with a compact design delivering high output. Targeted at commercial facilities with space constraints.
• P-K STORM Condensing Boiler A commercial condensing boiler solution for new construction or retrofit projects with a small footprint and high output. For commercial building owners and contractors.
• P-K SOLIS Condensing Boiler A condensing boiler solution for commercial applications targeting cost-efficient heating for new construction or retrofit projects.
• P-K MODU-FIRE FD Non-Condensing Boiler A non-condensing commercial boiler designed for new construction or retrofit projects, with a compact footprint and high output capability. Targeted at commercial facilities seeking reliable non-condensing heating.
• P-K THERMIFIC VELOX Non-Condensing Boiler A non-condensing commercial boiler for new construction or retrofit projects, with a compact footprint and high output. For commercial heating applications.
• P-K SOLIS W-Series Direct-Fired Water Heater A direct-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners needing high-demand hot water.
• P-K HiDRA Direct-Fired Water Heater A direct-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K SONIC SCD Direct-Fired Water Heater A direct-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K THERMIFIC VELOX W Series Direct-Fired Water Heater A direct-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K MODU-FIRE FD W Series Direct-Fired Water Heater A direct-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K COMPACT Indirect-Fired Water Heater An indirect-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K DURATION III Indirect-Fired Water Heater An indirect-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K MACH 'n' ROLL Indirect-Fired Water Heater An indirect-fired water heater designed to reliably and economically meet peak demands with trouble-free performance, ideal for building owners.
• P-K EvoHP Electric Heat Pump Water Heater An electric heat pump water heater representing emerging technology in climate-conscious commercial heating solutions for commercial building owners seeking sustainable hot water.
• NURO Control System An intelligent control system designed for optimum facility management. The NURO control swivels so technicians can view the screen while servicing the product. Targeted at building owners and technicians managing commercial boiler and water heater equipment.
• ENVI Control System An intelligent control system designed for optimum facility management. Targeted at facility managers of commercial heating installations.
• P-K COMPACT Water Heater Replacement Bundles Custom replacement bundles designed to enhance the longevity of P-K Compact or legacy products with tube bundles. For building owners maintaining existing water heater equipment.
• Custom Replacement Bundles Custom replacement bundles designed to enhance the longevity of existing equipment with tube bundles. For building owners and contractors servicing legacy P-K equipment.
• Water Heater Storage Tanks Storage tanks sold as accessories for water heaters. For building owners and contractors installing commercial water heating systems.
• Pumps Pumps sold as accessories for water heaters and boilers. For contractors installing and servicing commercial heating systems.
• Condensate Neutralization Kits Accessory kits for neutralizing condensate from boiler systems. For contractors and building owners with condensing boiler installations.
• P-K Outdoor Solutions Industry-trusted boiler and water heater solutions adapted for outdoor use, designed to withstand elements when installed on penthouse tops or outside buildings. For commercial buildings with space constraints.
• Fabricated Systems Packages Modular packaged systems designed to achieve high levels of efficiency and maintain boiler reliability. For commercial and institutional projects requiring engineered boiler room solutions.
• Hybrid Heating Systems Emerging climate-conscious heating technology combining multiple heating methods for improved sustainability and efficiency. For commercial building owners seeking sustainable heating solutions.
• Carbon Capture Technology Emerging technology in the commercial boiler industry focused on climate-conscious heating solutions and carbon capture for commercial boiler applications.

Named customers1 record

Segments10 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• RB EngineeringminorImplementation/ SI/ Consulting PartnerEngineering firm that collaborated with Patterson-Kelley on the United States Army Camp Humphreys project in South Korea. RB Engineering specified PK solutions for the military base retrofit project.

Scale indicators1 record

Recent moves6 records

Expansion highlights6 records

Direct peers

• Cleaver-Brooks: Cleaver-Brooks manufactures commercial and industrial boilers, water heaters, and packaged systems, directly overlapping with Patterson-Kelley's commercial boiler and fabricated systems product lines for the same contractor and engineering buyer base.
• Burnham Holdings: Burnham Holdings is a parent of U.S. Boiler Company and other hydronic heating brands, directly competing with Patterson-Kelley in commercial and residential cast-iron and condensing boilers with overlapping channels through independent reps and mechanical contractors.
• AERCO (Watts Water Technologies): AERCO is a leading manufacturer of high-efficiency commercial condensing boilers and water heaters serving institutional, hospitality, healthcare, and commercial office markets — a near-direct product and channel overlap with Patterson-Kelley.
• Camus Hydronics: Camus Hydronics manufactures commercial and residential hydronic boilers, including condensing and non-condensing models. It is a comparable specialty boiler peer serving similar commercial verticals with analogous rep-based distribution.
• Lochinvar (A.O. Smith): Lochinvar, owned by A.O. Smith, is one of Patterson-Kelley's closest direct competitors in commercial high-efficiency condensing boilers and commercial water heaters, targeting the same education, healthcare, hospitality, and light industrial verticals.
• Fulton Companies: Fulton manufactures commercial and industrial boilers, including condensing hydronic units, that compete directly with Patterson-Kelley's commercial boiler portfolio across education, healthcare, and light industrial customers.
• RBI (Rinnai): RBI Water Heaters / Rinnai offers commercial high-efficiency water heaters and boilers. It directly competes with Patterson-Kelley's commercial water heater and condensing boiler lines in similar hospitality and commercial-vertical applications.
• Raypak (Watts Water Technologies): Raypak, also a Watts Water brand alongside AERCO, manufactures commercial hydronic boilers, pool heaters, and water heaters. It competes with Patterson-Kelley in the same commercial condensing boiler and water heater categories with overlapping rep networks.

Broad incumbents

• Viessmann: Viessmann manufactures commercial and residential heating, industrial refrigeration, and increasingly heat pump solutions. As a global incumbent with strong decarbonization investments, it competes with PK in commercial hydronic and condensing boiler applications.
• Bosch Thermotechnology: Bosch Thermotechnology offers a broad portfolio of commercial and residential boilers, heat pumps, and water heaters. It is a much larger global incumbent competing against PK across multiple commercial segments with deeper R&D resources for electrification.

Market position

Strengths2 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Patterson-Kelley