The Ultra Series’ design of commercial tankless water heaters from Rinnai incorporates two heat exchangers to achieve greater water-heating value from every cubic foot of natural gas or propane.
February 20, 2014
The Ultra Series’ design of commercial tankless water heaters from Rinnai incorporates two heat exchangers to achieve greater water-heating value from every cubic foot of natural gas or propane.
To make multiple-unit condensing tankless water heater installation easier and more flexible for commercial contractors, Rinnai introduces its tankless rack system.
