Authorized Resellers

FIA Wholesalers

Lochinvar Service Contractors

tekmar Service Contractors


CAD Drawings


We are proud to announce our 3D CAD library.

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Bell & Gossett

Bell & Gossett Pumps, Air Separators, Expansion Tanks, Heat Exchangers, Triple Duty Valves, and Suction Diffusers.

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Lochinvar Boilers and Water Heaters.

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Selection Software

Xylem Bell & Gossett ESP-Systemwise

XYLEM Bell & Gossett's award winning selection program ESP-Systemwise has been widely accepted as the industry leader for hydronic equipment selection. It is available online with pump, heat exchanger, condensate transfer, steam accessories and hydronic specialties selection, including the new expansion tank module. CAD drawings and specifications are included for easy selection and importing into the project documents.

Lochinvar LochSpec

The plumbing engineer now has a powerful design tool in the LochSPEC water heating sizing program available online from Lochinvar.

Flex-Hose Expansion Joint Sizing

Design expansion joint, calculate anchor loads, determine guide spacing.

Hoffman Steam Calculator

Steam pipe, steam loss, flash steam calculator.

Hoffman Steam Trap Selector

Steam trap sizing and PRV sizing.

Wessels Expansion Tank Sizing

Expansion tank sizing with model number and submittal.

Service and Maintenance

Bell & Gossett Repair and Maintenance

Lochinvar Repair and Maintenance


Training, Simulators and Instructional Videos on Lochinvar Boilers and Water Heaters


Industry Resources


The Boston Chapter of American Society of Heating, Refrigerating and Air Conditioning Engineers. Check for the next meeting!

ASHRAE New Hampshire

The Granite State Chapter of the American Society of Heating Refrigerating and Air Conditioning Engineers, Inc.


The National Association of Oil Heating Service Managers is the only industry association devoted exclusively to education and the advancement of oil heat service professionals.


The Plumbing ­Heating­ Cooling Contractors National Association has been advocate for plumbing, heating and cooling contractors since 1883.


PHCC of Massachusetts is the statewide organization of plumbing, heating and cooling contractors.

PM Engineer Magazine

PM Engineer Magazine is the industry's premier source of online information for plumbing engineers.

PM Magazine

Few magazines in any industry can provide you with the kind of information on Plumbing-Piping-Hydronic Heating enjoyed by Plumbing & Mechanical Magazine.