JR Motorsports announced today that Rinnai Corporation, manufacturer of the number-one selling brand of tankless water heaters in North America, will serve as primary sponsor of Justin Allgaier and the No. 7 Chevrolet for the upcoming Rinnai 250 NASCAR Xfinity Series race at Atlanta Motor Speedway on Saturday, Feb. 24. Rinnai has been a long-time partner Read more