Water Heaters - Products

Water Heaters

ATI can facilitate the purchase of your next high-quality, high-efficiency, and high-durability commercial water heater by connecting you to the industry's leading manufacturers and assisting you in selecting the heater that best fits your application.

Columbia Boiler

Columbia Boiler Company, founded over 75 years ago, remains today among the most trusted names in the commercial HVAC industry, and they still make all their products in the USA.

Columbia Water Heaters

Columbia makes the MPHX Series of Tankless Water Heaters, which offer instant indirect heating through copper coils to minimize corrosion risk and deliver clean, hot water continuously. Perfect for high-use environments, and can run on #2 oil or natural/LP gas.


Weil-McLain has been in the boiler/heater industry since 1881 and is today a leading manufacturer of hydronic heating systems throughout North America. Their heaters easily integrate with the most up-to-date controls, are highly efficient, and are built of durable materials.

Aqua Plus Series 2
Aqua Pro

Weil-McLain Water Heaters

Weil-McLain's indirect-fired, high-efficiency water heaters produce around triple the peak-flow of electric units, double that of tankless models, and 50% more than direct-fired equivalents. Their Aqua Plus Series 2 and Aqua Pro models are leaders in both efficiency and hot water production within their classes.

Commercial & Industrial Boiler Financing

Finance Any New Boiler Today with No Payments for 120 Days

Finance Weil-McLain Boilers with No Payments for 120 Days