International leaders in research, design, and manufacturing of high-efficiency condensing boilers, water heaters and energy recovery electrical generator systems.
Leader in providing custom built heat exchangers and transfer systems and creator of the original plate heat exchanger.
Vertical, wall mounted water source heat pumps for classrooms and labs. Creating quality heating and cooling products since 1914.
The world's leader and largest manufacturer of water source heat pumps for commercial and industrial applications.
Makers of "The Most Durable & Corrosion Proof Cooling Towers Available", designed the first plastic (polyethylene) cooling tower with anti-microbial efficacy against Legionella.
Factory-Built Duct Systems for Boilers, Generators, Poly-Propylene Venting, and Grease Hood Applications.
Superior fluid control for the complex HVAC industry. Automatic flow controls and hose kit assemblies for water source heat pumps and other systems.
MacroAir's founder invented the HVLS fans for the dairy farmers wanting more milk production. Six to 24' diameter fans for energy savings and comfort.
Flue systems for condensing boilers, generators, and grease hoods, featuring a unique draw latch locking system that reduces installation time and creates a leak-free system.
Standard and built-to-order commercial and industrial replacement coils, chiller barrels, fan coils, tube bundles, air handling units, unit heaters, cabinet unit heaters, and fluid coolers.
Monitors, samples, detects and reports harmful airborne pathogen contaminants (bacteria, yeasts, and molds) before visual growth occurs; provides real-time alerts and reports.
EvergreenUV—The benchmark for ultraviolet light in-duct coil cleaning and upper-air pathogen reduction systems. Supporting healthy and sustainable designs for over 47 years.