Tankless Water Heating Solutions
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Provides an overview of tankless water heating technologies, including the history, features and functions, and the energy and environmental benefits of a tankless system, as well as a discussion on how they compare to existing tank heater technology.
Approximately 1 hour. Delivered online, at your own pace.
Presented by Charles Collison, Jay Williams, Terry Pappas and Dipesh Parekh on behalf of Rinnai America Corporation. View the Privacy Policy .
Presenter Information

Name: Charles Collison, Jay Williams, Terry Pappas and Dipesh Parekh
Title: Charles Collison, Jay Williams, Terry Pappas and Dipesh Parekh - Commercial Development Managers, Rinnai America Corporation
Background: CHARLES COLLISON is the Commercial Development Manager for Rinnai, Western Region. Charles joined Rinnai in 2008, and is proud to be part of the Rinnai team and to share the benefits of on-demand tankless hot water solutions! He has worked in sales & marketing, business development and general management roles in the home & building products industry for more than 20 years, in North America and Europe. He began his career with Honeywell Home & Building Controls. Charles has a BA from Stanford University and a MBA from INSEAD.
JAY WILLIAMS is the Commercial Development Manager for Rinnai, South Central Region. Jay joined Rinnai in 2007, leveraging his expertise from the plumbing industry to further develop the knowledge of plumbing professionals in the South Central region. His roots stem from a plumbing background, in Texas, where he held a Master Plumbing license. Over the last 12 years, he has held progressively responsible leadership roles in the construction and commercial real estate industries. His professional carrier began with Halliburton - Kellogg Brown & Root as the lead project manager. He attended DeVry University.
TERRY PAPPAS joined Rinnai in 2011 as a Commercial Development Manager responsible for growth in the US North Central Region & Central Canada. Terry has worked in engineering, sales & business development roles in the industrial and commercial markets for over 12 years. Prior to joining Rinnai, Terry began his career with Flowserve Corporation and held positions as a Design Engineer, Applications Engineer & Sales Engineer working with both the OEM and Aftermarket sector. After his tenure he later joined Victaulic responsible for business development in the North Central region of the Industrial and Energy markets. Terry earned a Bachelor of Science in Mechanical Engineering from University of Illinois at Chicago.
DIPESH PAREKH is the Commercial Development Manager for Rinnai Corporation. Dipesh has been with Rinnai over 5 years, started in 2006. Rinnai has a solid reputation for innovation and quality. Rinnai manufactures innovative technology for more comfortable living and highly efficient energy management. Rinnai’s product line includes an extensive range of energy efficient gas products from heating water, air, and food. The Rinnai flagship product is the award-winning, on-demand tankless water heater, that’s viewed number one by users across the nation. Dipesh is primary responsible for developing the Commercial market and works with Developers, Architects and Engineers to help specific, size applications, and provide energy efficient solutions using Rinnai technologies. Before joining the Rinnai Team, Dipesh worked for Siemens Westinghouse – Power Generation Division. Responsible for the design of emissions control equipment for power plants – working on both gas-fired turbines and coal-fired boilers. Dipesh does truly understand and has experience in both electric and gas industries. Dipesh attended the University for Florida and graduated with bachelor’s degree in Material Science & Engineering and Business Administration.