ISAAC™ HVAC Robotic System.
What is ISAAC? The Inspection, Sealing, and Advanced Cleaning robot,or ISAAC, is a precision machine created specificallyfor the inspection and repair of ductwork.   More>>


AP Armaflex Insulation Available in Code Compliant 1-1/2" and 2" Thicknesses.
AP Armaflex FS is fully code compliant: It meets 25/50 flame spread and smoke generation ratings in 1-1/2" and 2" thicknesses.    More>>


MARS Acquires Heat Controller, Inc.
Two Respected Companies Unite to Become The Most Comprehensive Industry Supplier of HVAC/R Parts and Equipment.     More>>


Williston-Allen Associates, Inc. proudly serves the Heating, Ventilating, Air Conditioning, Refrigeration, Indoor Air Quality, and Mechanical Industries. Established in 1985, the company specializes in maximizing market penetration for their manufacturer partners. Williston-Allen Associates, Inc. represents some of the most well respected names in the HVAC/R industry.

The firm sells its products and services through Wholesale Distributors and Original Equipment Manufacturers to installation & service contractors throughout the six New England states, and upper New York State.     More>>



The original cordless floodlight
A tool box essential since 2013, everyone needs a PRO.

Does a Flood-it Bounce?  Watch the video.


Robertshaw Controls has added Braeburn thermostats to their product offering.

Affordable Smart Wi-Fi Solution Universal 7 Day, 5-2 Day or Non-Programmable with 5” LCD display, soft-touch buttons and our patented SpeedBar® technology. Allows you to provide a cost effective Smart Wi-Fi solution for any residential or commercial application. 


8145-AV - 8000 Series Defrost Timers

The Paragon® 8000 Series Auto Voltage Defrost Timer is designed for commercial freezers and refrigerators. Paragon Defrost Controls have provided reliable automatic defrost capability for decades. They accommodate various types of defrost systems including electric defrost heaters, hot gas, and compressor off cycle. 


8145-AV - 8000 Series Defrost TimAKO-15490 - AKO 1535 Series Temperature Controller

The AKO 1535 Series Temperature Controller is a versatile electronic control engineered to manager various refrigeration and cooking commercial applications. With its wide temperature range, NTC and PTC probe inputs, and ambient storage humidity range, the AKO 1535 Series can be used in ovens, industrial panels, and electrical panels for refrigeration applications. 

MA Approval and NSF 61 Testing
AQUECOIL™ HHU units may be installed with boilers OR water heaters in the state of Massachusetts. 

MARS Azure MotorsThe Azure Digi-Motor from MARS is a high
efficiency variable speed direct drive blower motor for a multitude of applications including heat pumps, air handlers, and fossil fuel equipment. More>>

MultiAqua MHCFC4W Cassette Water Fan Coil.

  • 12,000 - 36,000 BTUH
  • Ductless Ceiling Mounted
  • Attractive Seamless Appliance Design
  • Cleanable Air Filter Provided
  • Wired to Accept 3-Speed 24V Thermostat



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