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Continuous Hot Water and Continuous Savings.

Thunder Group prides itself in quality, innovation and above all safety.  With this in mind, Thunder Group is proud to partner up with Rinnai and provide our customers with the latest technologies in high-efficiency tankless water heaters.  Rinnai has over 30 million tankless installations worldwide and have been efficiently heating water for over 45 years.  The Rinnai tankless lineup meets CSA, UL, GAMA, UPC, and NSF requirements.  In addition, Rinnai units also meet the California and Texas NOX emission rules.  Like all of Thunder Group’s products, Rinnai tankless water heaters are of the highest quality and come with an industry-leading warranty. 

What is a tankless water heater?   Why Rinnai tankless?

A tankless water heater is a smart, high-tech, and energy-efficient system that heats water only when used.  They are also known as on-demand, continuous water heaters.  With a Rinnai tankless water heater, there is no need to heat and reheat the same tank of water.  They provide space-savings, endless hot water, energy savings, and last longer than traditional tank-type water heaters. 

·        Endless Hot Water – Rinnai tankless water heater heats only the water you need, when you need it.  This technology supplies continuous hot water for all your needs at a consistent temperature.   

·        Space Savings – Compact design helps you save valuable floor space.  Rinnai tankless water heaters can be installed virtually anywhere: inside, outside, or even on rooftops.

·        Energy Savings – With a Rinnai tankless water heater, you’ll enjoy energy savings and lower operation costs.  These units have no pilot-lights, high efficiency ratings, and only heat water on-demand.  A truly revolutionary savings advantage that will show up on your lower energy bills. 

·        Redundancy/System Backup – For commercial applications, multiple Rinnai tankless units create a system that fully satisfies all your hot water needs and at the same time provides a built-in redundancy/system backup.  You will never be completely out of hot water again.   That is a peace of mind and a bunch of headaches avoided on that busy Friday evening. 

“Best Tankless Water Heater”

With all the different tankless manufacturers out there, why does Thunder Group only carry Rinnai?  Simply put, it is the best tankless water heater in the market:

·        Rinnai was chosen by home builders nationwide as the 2010 Builders’ Brand Leader in Builder Magazine. 

·        The Alliance to Save Energy awarded Rinnai their prestigious Super Nova Star Award for energy efficiency.

·        Bestcovery.com chose Rinnai as “The Best Tankless Whole-House Water Heater”.

·        Rinnai has over 50% of the tankless market in the U.S.

·        Peace of mind with an industry-leading warranty: Up to 12 years warranty on residential applications and 5 years on commercial for the heat exchanger.  5 years parts warranty and labor coverage is also provided.  (Please contact for details).   

·        Total product support with both Thunder Group’s Sales team and Rinnai’s 24/7 technical support.  We are available to answer all your questions before and after the sale.