AO Smith

B & K INDUSTRIES

Baso

Bradford White

Carrier

Century

Cooper Bussmann

Crown

DiversiTech

ESP

Evcon

Fasco

Field Controls

Frost King

Gardner Bender

Generic

Goodman, Amana, Janitoral

Hartland

Hercules

Hydrolevel

ICM Controls

ICP

Imperial

INTERTAPE POLYMER

JMF

Lau

Lennox / Ducane / Armstrong

Leviton

Malco

McDonnell & Miller

MetalFab

Mr. Cool

Nashua

NBK

Nordyne

Oatey

Packard

Permatex

Resideo / Honeywell

Rheem-Ruud

Robertshaw

Slant/Fin

Source 1 (York, Evcon, Coleman)

Sterling HVAC

Supco

Trane

US Motors

Utica-Dunkirk

Vulcan

Watts

Weil McLain

White-Rodgers

Williams Comfort Products

Wiss