If you have a Rheem water heater, then you'll want to keep this guide nearby. It offers tips on how to maintain your device, as well as how to troubleshoot any problems that may arise. So whether you're a first-time user or an experienced pro, this guide has everything you need to keep your water heater running smoothly.
| Image | Model Info |
|---|---|
 | ECO160DVLP3-1 Performance Plus 7.0 GPM Liquid Propane Indoor Tankless Water Heater |
 | ECO160XLP3-1 Performance Plus 7.0 GPM Liquid Propane Outdoor Tankless Water Heater |
 | ECO180DVLN3-1 Performance Plus 8.4 GPM Natural Gas Indoor Tankless Water Heater |
 | ECO180DVLP3-1 Performance Plus 8.4 GPM Liquid Propane Indoor Tankless Water Heater |
 | ECO180XLN3-1 Performance Plus 8.4 GPM Natural Gas Outdoor Tankless Water Heater |
 | ECO180XLP3-1 Performance Plus 8.4 GPM Liquid Propane Outdoor Tankless Water Heater |
 | ECO200DVLN3-1 Performance Plus 9.5 GPM Natural Gas Indoor Tankless Water Heater |
 | ECO200DVLP3-1 Performance Plus 9.5 GPM Liquid Propane Indoor Tankless Water Heater |
 | ECO200XLN3-1 Performance Plus 9.5 GPM Natural Gas Outdoor Tankless Water Heater |
 | ECO200XLP3-1 Performance Plus 9.5 GPM Liquid Propane Outdoor Tankless Water Heater |
 | ECOH160DVLN-2 Performance Platinum 8.4 GPM Natural Gas High Efficiency Indoor Tankless Water Heater |
 | ECOH180DVLP-2 Performance Platinum 9.0 GPM Liquid Propane High Efficiency Indoor Tankless Water Heater |
 | ECOH180DVRHLN Performance Platinum 9.9 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater |
 | ECOH180XLN-2 Performance Platinum 9.0 GPM Natural Gas High Efficiency Outdoor Tankless Water Heater |
 | ECOH200DVLN-2 Performance Platinum 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater |
 | ECOH200DVLP-2 Performance Platinum 9.5 GPM Liquid Propane High Efficiency Indoor Tankless Water Heater |
 | ECOH200DVRHLN Performance Platinum 11 GPM Natural Gas High Efficiency Indoor Recirculating Tankless Water Heater |
 | ECOH200DVRHLP Performance Platinum 11 GPM Liquid Propane High Efficiency Indoor Recirculating Tankless Water Heater |
 | ECOH200XLN-2 Performance Platinum 9.5 GPM Natural Gas High Efficiency Outdoor Tankless Water Heater |
 | ECOH200XLP-2 Performance Platinum 9.5 GPM Liquid Propane High Efficiency Outdoor Tankless Water Heater |
 | G100-200 Commercial Universal Heavy Duty 100 Gal. 199.9K BTU Natural Gas Tank Water Heater |
 | G100-80 Commercial Medium Duty 100 Gal. 80K BTU Natural Gas Tank Water Heater |
 | G50-60N Medium Duty 50 Gal. 60K BTU Low NOx (LN) Commercial Natural Gas Tank Water Heater |
 | G65-360A-1 Commercial Universal Heavy Duty 65 Gal. 360K BTU Natural Gas ASME Tank Water Heater |
 | G75-75N-3 Commercial Medium Duty 75 Gal. 75K BTU Low NOx (LN) Natural Gas Tank Water Heater |
 | GHE100SS-200 Commercial Triton Premium Heavy Duty High Eff. 100 Gal. 200K BTU ULN Natural Gas Power Direct Vent Tank Water Heater |
 | GHE100SS-400A LP Commercial Triton Premium Heavy-Duty High Eff. 100 Gal. 400K BTU Liquid Propane ASME Power Direct Vent Tank Water Heater |
 | GHE100SU-200 Commercial Triton Heavy Duty High Efficiency 100 Gal. 200K BTU ULN Natural Gas Power Direct Vent Tank Water Heater |
 | GHE80SU-200 Commercial Triton Heavy Duty High Efficiency 80 Gal. 200K BTU ULN Natural Gas Power Direct Vent Tank Water Heater |
 | GNU100-200 Commercial Universal Heavy Duty 100 Gal. 199.9K BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | GX90-715A Xtreme 90 Gal. Tall 715,000 BTU 3 Year Warranty Commercial Natural Gas Water Heater |
 | MHD75245 Marathon 75 Gal. Lifetime 4500/4500-Watt Non-Metallic Commercial Electric Water Heater |
 | MR40245 Marathon 40 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater |
 | MR50245 Marathon 50 Gal. Tall 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater |
 | MSR50245 Marathon 50 gal. Short 4500/4500-Watt Elements Non Metallic Lifetime Electric Tank Water Heater |
 | RETEX-04 Performance 3.5 kW 0.68 GPM Point-Of-Use Tankless Electric Water Heater |
 | RETEX-06 Performance 6 kW 1.0 GPM Point-Of-Use Tankless Electric Water Heater |
 | RETEX-08 Performance 8 kW Self-Modulating 1.55 GPM Tankless Electric Water Heater |
 | RETEX-11 Performance 11 kW Self-Modulating 2.15 GPM Tankless Electric Water Heater |
 | RETEX-13 Performance 13 kW Self-Modulating 2.54 GPM Tankless Electric Water Heater |
 | RETEX-18 Performance 18 kW Self-Modulating 3.51 GPM Tankless Electric Water Heater |
 | RETEX-24 Performance 24 kw Self-Modulating 4.68 GPM Tankless Electric Water Heater |
 | RETEX-27 Performance 27 kw Self-Modulating 5.27 GPM Tankless Electric Water Heater |
 | RETEX-36 Performance 36 kw Self-Modulating 7.03 GPM Tankless Electric Water Heater |
 | RH17920 Timer Based Recirculation Pump Kit for Tankless Water Heaters |
 | RH18537 1/25 HP Hot Water Recirculating Pump |
 | RTGH-C95DVLN Commercial 9.5 GPM Natural Gas High Efficiency Indoor Tankless Water Heater |
 | XE06MT06U0 MiniTank 120-Volt 6 Gal. Compact Point of Use Electric Water Heater |
 | XE20S06ST38U0 Performance 20 Gal. Short 6 Year 3800/3800-Watt Elements Electric Tank Water Heater |
 | XE30M06ST45U1 Performance 30 Gal. Medium 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE30S06ST38U1 Performance 30 Gal. Short 6-Year 3800/3800-Watt Elements Electric Tank Water Heater |
 | XE30S06ST45U1 Performance 30 Gal. Short 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE30T06MH45U1 Performance 30 Gal. Tall 6 Year 4500/4500-Watt Elements Manufactured Housing Side Connect Electric Tank Water Heater |
 | XE30T06ST38U1 Performance 30 Gal. Tall 6-Year 3800/3800-Watt Elements Electric Tank Water Heater |
 | XE30T06ST45U1 Performance 30 Gal. Tall 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE38S06ST38U1 Performance 38 Gal. Short 6 Year 3800/3800-Watt Elements Electric Tank Water Heater |
 | XE38S06ST45U1 Performance 38 Gal. Short 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE40M06ST45U1 Performance 40 Gal. Medium 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE40M09EL45U1 Performance Plus 40 Gal. Medium 9-Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE40M09EL55U1 Performance Plus 40 Gal Medium 9-Year 5500/5500-Watt Elements Electric Tank Water Heater |
 | XE40T06MH45U1 Performance 40 Gal. Tall 6 Year 4500/4500-Watt Elements Manufactured Housing Side Connect Electric Tank Water Heater |
 | XE40T06ST45U1 Performance 40 Gal. Tall 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE40T09EL45U1 Performance Plus 40 Gal. Tall 9-Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE50M06ST45U1 Performance 50 Gal. Medium 6-Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE50M09EL45U1 Performance Plus 50 Gal. Medium 9 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE50M09EL55U1 Performance Plus 50 Gal. Medium 9 Year 5500/5500-Watt Elements Electric Tank Water Heater |
 | XE50T06ST45U1 Performance 50 Gal. Tall 6 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE50T09EL45U1 Performance Plus 50 Gal. Tall 9 Year 4500/4500-Watt Elements Electric Tank Water Heater |
 | XE50T09EL55U1 Performance Plus 50 Gal. Tall 9 Year 5500/5500-Watt Elements Electric Tank Water Heater |
 | XG29T06EC32U1 Performance 29 Gal. Tall 6 Year 32,000 BTU Natural Gas Tank Water Heater |
 | XG29T06EN30U1 Performance 29 Gal. Tall 6 Year 30,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG29T06MH32U1 Performance Manufactured Housing 29 Gal. Tall 6 Year 32,000 BTU Convertible Natural Gas/LP Tank Water Heater |
 | XG30S06EC30U1 Performance 30 Gal. Short 6 Year 30,000 BTU Natural Gas Tank Water Heater |
 | XG30T06MD30U1 Performance Manufactured Housing 30 Gal. Tall 6 Year 30,000 BTU Convertible Natural Gas/LP Direct Vent Tank Water Heater |
 | XG39S06EN38U1 Performance 39 Gal. Short 6-Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG40S06EC34U0 Performance 40 Gal. Short 6 Year 34,000 BTU Natural Gas Tank Water Heater |
 | XG40S06PV36U0 Performance 40 Gal. Short 6 Year 36,000 BTU Natural Gas Power Vent Tank Water Heater |
 | XG40S09HE38U0 Performance Plus 40 Gal. Short 9 Year 38,000 BTU Natural Gas Tank Water Heater |
 | XG40S12DM40U0 Performance Platinum 40 Gal. Short 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater |
 | XG40S12HE38U0 Performance Platinum 40 Gal. Short 12 Year 38,000 BTU Natural Gas Tank Water Heater |
 | XG40T06EC36U1 Performance 40 Gal. Tall 6-Year 36,000 BTU Natural Gas Tank Water Heater |
 | XG40T06EN38U1 Performance 40 Gal. Tall 6 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG40T06MD30U1 Performance Manufactured Housing 40 Gal. Tall 6 Year 30,000 BTU Convertible Natural Gas/LP Direct Vent Tank Water Heater |
 | XG40T06MH34U1 Performance Manufactured Housing 40 Gal. Tall 6 Year 34,000 BTU Convertible Natural Gas/LP Tank Water Heater |
 | XG40T06PV40U0 Performance 40 Gal. Tall 6 Year 40,000 BTU Natural Gas Power Vent Tank Water Heater |
 | XG40T09EN38U1 Performance Plus 40 Gal. Tall 9 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG40T12DM40U0 Performance Platinum 38 Gal. Tall 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater |
 | XG40T12DU38U2 Performance Platinum 40 Gal. Tall 12-Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Power Damper Tank Water Heater |
 | XG40T12EN38U1 Performance Platinum 40 Gal. Tall 12 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG50S06EC40U1 Performance 50 Gal. Short 6 Year 40,000 BTU Natural Gas Tank Water Heater |
 | XG50S06PV36U0 Performance 50 Gal. Short 6 Year 36,000 BTU Natural Gas Power Vent Tank Water Heater |
 | XG50S12HE40U0 Performance Platinum 50 Gal. Short 12 Year 40,000 BTU Natural Gas Tank Water Heater |
 | XG50T06DV36U0 Performance 50 gal. Tall 6-Year 36,000 BTU Natural Gas Direct Vent Tank Water Heater |
 | XG50T06EC38U1 Performance 50 Gal. Tall 6 Year 38,000 BTU Natural Gas Tank Water Heater |
 | XG50T06EN38U1 Performance 50 Gal. Tall 6 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG50T06PN38U1 Performance 50 Gal. Tall 6-Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Power Vent Tank Water Heater |
 | XG50T06TC38U1 Performance 50 Gal. Tall 6-Year 38,000 BTU Natural Gas Tank Water Heater |
 | XG50T09EN38U1 Performance Plus 50 Gal. Tall 9 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater - Utah Version |
 | XG50T09HE40U0 Performance Plus 50 Gal. Tall 9 Year 40,000 BTU Natural Gas Tank Water Heater |
 | XG50T09HN38U2 Performance Plus 50 Gal. Tall 9 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG50T12DM40U0 Performance Platinum 50 Gal. Tall 12 Year 40,000 BTU Natural Gas ENERGY STAR Tank Water Heater |
 | XG50T12DU38U2 Performance Platinum 50 Gal. Tall 12-Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Power Damper Tank Water Heater |
 | XG50T12EN38U1 Performance Platinum 50 Gal. Tall 12 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater - Utah Version |
 | XG50T12HE40U0 Performance Platinum 50 Gal. Tall 12 Year 40,000 BTU Natural Gas Tank Water Heater |
 | XG50T12HN38U2 Performance Platinum 50 Gal. Tall 12 Year 38,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG55T06EC50U0 Performance 55 Gal. Tall 6 Year 50,000 BTU Natural Gas Tank Water Heater |
 | XG55T06EN45U2 Performance 55 Gal. Tall 6 Year 45,000 BTU Ultra Low NOx (ULN) Natural Gas Tank Water Heater |
 | XG55T12EC50U0 Performance Platinum 55 Gal. Tall 12 Year 50,000 BTU Natural Gas Tank Water Heater |
 | XG75T06EN76U1 Performance 75 gal. Tall 6-Year 75,100 BTU Ultra LoNox Natural Gas Water Heater |
 | XG75T06ST76U0 Performance 75 Gal. Tall 6 Year 76,000 BTU Natural Gas Tank Water Heater |
 | XG75T12ST76U0 Performance Platinum 75 Gal. Tall 12 Year 76,000 BTU Natural Gas Tank Water Heater |
 | XG98T06ST76U0 Performance 98 Gal. Tall 6 Year 76,000 BTU Natural Gas Tank Water Heater |
 | XP40S06PV32U0 40 Gal. Short 6 Year 32,000 BTU Liquid Propane Power Vent Water Heater |
 | XP40S12HE36U0 Performance Platinum 40 Gal. Short 12 Year 36,000 BTU Liquid Propane Tank Water Heater |
 | XP40T06EC32U1 Performance 40 Gal. Tall 6 Year 32,000 BTU Liquid Propane Tank Water Heater |
 | XP40T12HE36U0 Performance Platinum 40 Gal. Tall 12 Year 36,000 BTU Liquid Propane Tank Water Heater |
 | XP50T06EC36U1 Performance 50 Gal. Tall 6 Year 36,000 BTU Liquid Propane Tank Water Heater |
 | XP50T06HE36U0 Performance 50 Gal. Tall 6 Year 36,000 BTU Liquid Propane High Efficiency Tank Water Heater |
 | XP50T06PV42U0 Performance 50 Gal. Tall 6 Year 42,000 BTU Liquid Propane Power Vent Tank Water Heater |
 | XP50T12DM36U0 Performance Platinum 50 Gal. Tall 12 Year 36,000 BTU Liquid Propane ENERGY STAR Tank Water Heater |
 | XP50T12HE36U0 Performance Platinum 50 Gal. Tall 12 Year 36,000 BTU Liquid Propane Tank Water Heater |
 | XP75T06ST76U0 Performance 75 Gal. Tall 6 Year 75,100 BTU Liquid Propane Tank Water Heater |
 | EGSP6 120 Volt 1.5kw POU Commercial Point of Use 6 Gal. 120-Volt 1.5 kW 1 Phase Electric Tank Water Heater |
 | ECO180XLN3-1BPP3 Performance Plus 8.4 GPM Natural Gas Outdoor Tankless Water Heater Plumber ProPack Bundle |
 | ECO200XLN3-1BPC Performance Plus 9.5 GPM Natural Gas Mid Efficiency Outdoor Tankless Water Heater |
 | XE40M12CS45U0 Gladiator 40 Gal. Medium 12 Year 4500/4500-Watt Smart Electric Water Heater |
 | XE40M12CS55U1 Gladiator 40 Gal. Medium 12 Year 5500/5500-Watt Smart Electric Water Heater |
| XE50M12CS55U1 Gladiator 50 Gal. Medium 12 Year 5500/5500-Watt Smart Electric Water Heater |
 | XE50T10HS45U0 ProTerra 50 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater |
| XE50T12CS45U0 Gladiator 50 Gal. Tall 12 Year 4500/4500-Watt Smart Electric Water Heater |
| XE50T12CS55U1 Gladiator 50 Gal. Tall 12 Year 5500/5500-Watt Smart Electric Water Heater |
| XE55T12CS45U0 Gladiator 55 Gal. Tall 12 Year 4500/4500-Watt Smart Electric Water Heater |
| XE55T12CS55U0 Gladiator 55 Gal. Tall 12 Year 5500/5500-Watt Smart Electric Water Heater |
| XE65T10H45U0 Performance Platinum 65 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater |
| XE65T10HS45U0 ProTerra 65 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater |
| XE80T10H45U0 Performance Platinum 80 Gal. 10-Year Hybrid High Efficiency Smart Tank Electric Water Heater |
