Rheem Xwell Series (XC & XS) (Warranty: 8 years for inner tank, 2 years for spare parts) Rheem EHG Series (Warranty: 5 years for inner tank, 1 year for spare parts) Rheem RCY Series (Warranty: 5 years for inner tank, 1 year for spare parts) Rheem EH-M Series (Warranty: 3 years for linner tank, 1 year for spare parts) Rheem Vertical Tank VP Series (Warranty: 3 years for inner tank, 1 year for spare parts) Our Homeone service includes an engineering warranty for parts and labour. The leak-proof warranty is provided by the manufacturer.