
Armstrong
Expert in fluid flow, heat transfer, and demand-based control.
Beckett
A leader in combustion products used in heating, cleaning equipment, and for custom applications.
Bradford White
The only American-strong, American-owned, wholesale-only water heater and boiler manufacturer in the United States.

BURNHAM Commerial Boilers
A leading manufacturer and marketer of high-quality boilers and control systems for commercial and industrial applications.

Creatherm
Creatherm radiant floor panels offer a great solution for slab-on-grade, snow melt, retro-fit heating.
CROWCON
Manufacturer of combustion analyzers and gas detection products. Annual calibration is done at our warehouse in Hermitage, PA.

Holby Valve Company
Focused on simple, durable valve design and high-performance tempering valves.
Milwaulkee
An industry-leading manufacturer of heavy-duty power tools, accessories and hand tools for professional users.

New Yorker Boilers
Reliable residential hydronic-heating products, offers a complete line of cast iron and steel boilers, as well as an indirect water heater
Schedule Engine
Leading provider of intelligent, self-service online scheduling solutions that gives contractors the opportunity to offer a unique online booking experience to their customers.

Spirotherm
Industry leading high efficiency Spirovent® coalescing type air elimination products and its extended line of Spirotrap® dirt separators.

Sterling Inc.
The industry's most complete line of finned tube heating elements and enclosures and baseboard radiation.

Super Radiator Coils
Precision-made products backed by nearly a century of industry knowledge and experience.

Tigre
PVC fittings for DWV and Schedule 40 applications.
= Stocked in PSI warehouse