
Go To: Tankless Gas 56 GPM  78 GPM  9 GPM  10 GPM  1119 GPM 
Navien NPE180ANG Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $1000 
Energy 0.97 Factor 
Utility Cost $209 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $119 Per GPM 
Vent PowerD Type 
10 Yr Cost $4100 Install+Utilities 
Navien NPE180SNG Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $1000 
Energy 0.99 Factor 
Utility Cost $204 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $119 Per GPM 
Vent PowerD Type 
10 Yr Cost $4000 Install+Utilities 
Rheem ECO180DVLN3 Type: 8.4 GPM Tankless Fuel: Natural Gas Flow: 3.9 GPM (77* Rise) Nominal Price: $1000 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $119 Per GPM 
Vent Direct Type 
10 Yr Cost $4500 Install+Utilities 
Rheem ECO180XLN3 Type: 8.4 GPM Tankless Fuel: Natural Gas Flow: 3.9 GPM (77* Rise) Nominal Price: $800 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $95 Per GPM 
Vent Power Type 
10 Yr Cost $4300 Install+Utilities 
Rheem ECOH160DVLN Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $1000 
Energy 0.92 Factor 
Utility Cost $220 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $119 Per GPM 
Vent Direct Type 
10 Yr Cost $4200 Install+Utilities 
Rheem ECOH160XLN Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $1100 
Energy 0.92 Factor 
Utility Cost $220 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $131 Per GPM 
Vent PowerD Type 
10 Yr Cost $4300 Install+Utilities 
Richmond RMTGH84DVLN Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $900 
Energy 0.92 Factor 
Utility Cost $220 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $107 Per GPM 
Vent Direct Type 
10 Yr Cost $4100 Install+Utilities 
Richmond RMTGH84XLN Type: 8.4 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $900 
Energy 0.92 Factor 
Utility Cost $220 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $107 Per GPM 
Vent PowerD Type 
10 Yr Cost $4100 Install+Utilities 
Bosch Therm 830 ES NG Type: 8.3 GPM Tankless Fuel: Natural Gas Flow: 3.7 GPM (77* Rise) Nominal Price: $1000 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $120 Per GPM 
Vent Atmos Type 
10 Yr Cost $4500 Install+Utilities 
Noritz NR83DVCNG Type: 8.3 GPM Tankless Fuel: Natural Gas Flow: 4 GPM (77* Rise) Nominal Price: $1100 
Energy 0.85 Factor 
Utility Cost $238 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $133 Per GPM 
Vent Direct Type 
10 Yr Cost $4500 Install+Utilities 
A O Smith ATI310N Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $1100 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4600 Install+Utilities 
A O Smith ATI310UN Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $1100 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4600 Install+Utilities 
A O Smith ATI340HN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.5 GPM (77* Rise) Nominal Price: $1200 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $150 Per GPM 
Vent PowerD Type 
10 Yr Cost $4300 Install+Utilities 
A O Smith ATO310N Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $1100 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4600 Install+Utilities 
A O Smith ATO310UN Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $1100 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4600 Install+Utilities 
A O Smith ATO340HN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.5 GPM (77* Rise) Nominal Price: $1200 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $150 Per GPM 
Vent PowerD Type 
10 Yr Cost $4300 Install+Utilities 
American GT310NE Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $113 Per GPM 
Vent Power Type 
10 Yr Cost $4400 Install+Utilities 
American GT310NI Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $113 Per GPM 
Vent Power Type 
10 Yr Cost $4400 Install+Utilities 
American GT310UE Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $113 Per GPM 
Vent Power Type 
10 Yr Cost $4400 Install+Utilities 
American GT310UI Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $113 Per GPM 
Vent Power Type 
10 Yr Cost $4400 Install+Utilities 
Navien NR180ANG Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.6 GPM (77* Rise) Nominal Price: $1000 
Energy 0.94 Factor 
Utility Cost $215 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $125 Per GPM 
Vent PowerD Type 
10 Yr Cost $4200 Install+Utilities 
Navien NR180NG Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.6 GPM (77* Rise) Nominal Price: $1000 
Energy 0.96 Factor 
Utility Cost $211 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $125 Per GPM 
Vent PowerD Type 
10 Yr Cost $4100 Install+Utilities 
Reliance TS340GEH Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.5 GPM (77* Rise) Nominal Price: $1400 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $175 Per GPM 
Vent PowerD Type 
10 Yr Cost $4500 Install+Utilities 
Reliance TS340GIH Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.5 GPM (77* Rise) Nominal Price: $1400 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $175 Per GPM 
Vent PowerD Type 
10 Yr Cost $4500 Install+Utilities 
Rinnai RU80eN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.9 GPM (77* Rise) Nominal Price: $1300 
Energy 0.96 Factor 
Utility Cost $211 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $163 Per GPM 
Vent Power Type 
10 Yr Cost $4400 Install+Utilities 
Rinnai RU80iN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.9 GPM (77* Rise) Nominal Price: $1200 
Energy 0.96 Factor 
Utility Cost $211 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $150 Per GPM 
Vent Power Type 
10 Yr Cost $4300 Install+Utilities 
Rinnai RUC80iN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.8 GPM (77* Rise) Nominal Price: $1300 
Energy 0.96 Factor 
Utility Cost $211 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $163 Per GPM 
Vent Direct Type 
10 Yr Cost $4400 Install+Utilities 
Takagi TH3OSN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.9 GPM (77* Rise) Nominal Price: $1100 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4200 Install+Utilities 
Takagi TH3SDVN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.4 GPM (77* Rise) Nominal Price: $1100 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent PowerD Type 
10 Yr Cost $4200 Install+Utilities 
Takagi TH3SOSN Type: 8 GPM Tankless Fuel: Natural Gas Condensing Flow: 4.4 GPM (77* Rise) Nominal Price: $1100 
Energy 0.95 Factor 
Utility Cost $213 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $138 Per GPM 
Vent Power Type 
10 Yr Cost $4200 Install+Utilities 
Takagi TK4INN Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $800 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $100 Per GPM 
Vent PowerD Type 
10 Yr Cost $4300 Install+Utilities 
Takagi TK4OSN Type: 8 GPM Tankless Fuel: Natural Gas Flow: 4.1 GPM (77* Rise) Nominal Price: $800 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 15 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $100 Per GPM 
Vent Power Type 
10 Yr Cost $4300 Install+Utilities 
Bradford White TG180EN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 4.6 GPM (65* Rise) Nominal Price: $1200 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $160 Per GPM 
Vent Atmos Type 
10 Yr Cost $4700 Install+Utilities 
Bradford White TG180IN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 4.6 GPM (65* Rise) Nominal Price: $1200 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $160 Per GPM 
Vent Atmos Type 
10 Yr Cost $4700 Install+Utilities 
Rinnai RL75eN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 3.8 GPM (77* Rise) Nominal Price: $1000 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $133 Per GPM 
Vent Direct Type 
10 Yr Cost $4500 Install+Utilities 
Rinnai RL75iN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 3.8 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $120 Per GPM 
Vent Direct Type 
10 Yr Cost $4400 Install+Utilities 
Rinnai V75eN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 3.8 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $120 Per GPM 
Vent Direct Type 
10 Yr Cost $4400 Install+Utilities 
Rinnai V75iN Type: 7.5 GPM Tankless Fuel: Natural Gas Flow: 3.8 GPM (77* Rise) Nominal Price: $900 
Energy 0.82 Factor 
Utility Cost $247 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $120 Per GPM 
Vent Direct Type 
10 Yr Cost $4400 Install+Utilities 
Noritz NRC711DVNG Type: 7.1 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.9 GPM (77* Rise) Nominal Price: $1000 
Energy 0.94 Factor 
Utility Cost $215 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $141 Per GPM 
Vent Direct Type 
10 Yr Cost $4200 Install+Utilities 
Noritz NRC711ODNG Type: 7.1 GPM Tankless Fuel: Natural Gas Condensing Flow: 3.9 GPM (77* Rise) Nominal Price: $1000 
Energy 0.94 Factor 
Utility Cost $215 National Avg 
Warranty 12 Yrs Tank/HE 
Warranty 5 Yrs Parts 
Unit Cost $141 Per GPM 
Vent Power Type 
10 Yr Cost $4200 Install+Utilities 
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