AERCO International, Inc. (AERCO) is a leading supplier of boilers and water heating products, and the originator of semi-instantaneous water heating. 

When AERCO was founded in 1949, it introduced a revolutionary design for an indirect-fired water heater that heated water on demand, and without storage, at a controlled temperature. This innovation became today's standard for water heaters. With continued improvements, AERCO has been able to maximize the recovery of latent heat energy, significantly increasing the operating efficiency of this equipment. 

In 1988, AERCO again shook the industry as the first U.S. manufacturer to offer a fully modulating and condensing commercial gas-fired water heater and promptly extended this design to the hydronic boiler marketplace. The modulating capability of these products (still unsurpassed 20 years later) match the equipment's output to real-time heating demand, ensuring that the units draw no more fuel to operate than is absolutely necessary. Their condensing design extracts much of the usable heat from the water vapors created during the combustion process, making sure that your money doesn't disappear "up the stack." 

AERCO's culture embraces the principle of continual process improvement. Throughout the organization, AERCO has adopted state-of-the-art manufacturing methods, disciplined product development and rigorous quality-management programs to ensure that our products are delivered on time and with top-notch service to the customer. Our sales and marketing staff are determined to set the lead in system designs by working with consulting engineers, contractors and end users to ensure that systems maximize energy and space utilization in a cost effective way. AERCO pursues these practices with just one goal in mind: to satisfy our customers and provide them with the highest quality product and service.

AERCO has been an industry leader in water heating design for over 50 years. We have solutions that fit all segments of the water heater and boiler market. From the smallest elementary school to the largest of Las Vegas' hotel casinos, AERCO provides the highest-quality products and system designs that deliver hot water and space heating with the greatest efficiency and performance.

AERCO Technologies

You've come to the right section of our Web site if you want to learn about the most advanced boiler and heating technologies. This section provides a basic, easy-to-understand review of factors that contribute to heating efficiency. We hope it will enable you to feel confident when choosing hydronic boiler or water heating equipment as well as help you design the best overall system to meet your needs.

In addition to the short technology overviews provided here, you may also want to consider the Federal Technology Alert published in 1998 by the DOE's Oak Ridge Tennessee lab. The eight-page publication examines the operational benefits of condensing and modulating boilers and water heaters, relevant applications, installation requirements, etc. Two case studies, energy savings and life-cycle cost estimates, are also provided.