Keeping New England Comfortable for over 45 years.


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Introducing the INSTINCT
Solo, INSTINCT Combi Boilers
by Triangle Tube

Triangle Tube has been an industry leader in the manufacture and supply of quality stainless steel hot water heating equipment for over 60 years. They were the original innovators of the fire tube boiler, creating warmth and comfort for families throughout North America. Triangle Tube’s goal is to deliver total comfort and peace of mind; with a full line of heating and hot water products that you can rely on.


Triangle Tube is pleased to offer their newest product lines; the Instinct Solo and Instinct Combi boiler systems, utilizing cutting-edge high-efficiency condensing technology for the future of residential and commercial heating.


The Instinct Solo and Instinct Combi boilers are manufactured using the "no-fault forward" production system where products receive over 200 quality checks before leaving the factory. The Instinct series of boilers all have stainless steel fire tube heat exchangers.


Solo sizes come in 110, 155, 199 MBH and can be cascaded up to six boilers. Instinct Solo boilers can be paired with the Ginius or Smart tanks to provide an abundance of hot water. Combi sizes are available in 155 and 199 MBH.


The CTRLMAX Control System - EZ Setup allows for a quick 60 minute setup. Easy troubleshooting in plain text with no encrypted codes. The 3-in-1 universal vent adapter directly accepts PVC, Centrotherm (polypropylene) and stainless steel. The large plate heat exchanger provides industry leading performance. 5+ GPM hot water while fully condensing in DHW mode.


Stop by any of our branches today for more information, prices and availability on the full line of Triangle Tube’s Instinct boiler systems and related products available now.



Our Luxury Showroom is now located next to our Austin Avenue, Greenville branch location to better serve our contractors and to make it easier for our customers to pick-up all their supplies; from pipes and fittings to tubs, showers and vanities.

Your one stop location for all your plumbing needs!

We Offer a Full Array
of Contractor Services

At Smithfield Supply we offer a wide array of services. We have Experienced, licensed professionals who can help in many situations. If there is a service not listed please inquire we really could not list everything.

• Radiant Design Service

• Boiler Sizing

• Job Take-off’s

• Heat Losses

• A/C Sizing

• Bid packaging

• Water quality analysis

• Kitchen Design

• Bathroom Design

• Emergency Commercial Water Heater Program

Rhode Island Association of Plumbing & Mechanical Inspectors RI Builders Association Home Builders & Remodelers Association of New Hampshire Rhode Island Master Plumbers Association National Association of Home Builders The New England Plumbing, Gas & Mechanical Inspectors Association

For information on how we are protecting our customers and employees during the COVID-19 pandemic,
click here.


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