Compare Noritz vs. Rinnai vs. Takagi
Compare Noritz vs. Rinnai vs. Takagi, specifications, and top features so you can buy the best tankless water heater for heating potable water and home space. Find out which manufacturer has the largest selection of models, most Energy Star models, and water heaters with the best features.
Best tankless water heater comparison
Best of Rinnai - Specifications
| Models / Specs | RUR98i | RU98e | RUC98i |
| Gas input (BTU) |
15,200 199,000 |
15,200 199,000 |
15,200 199,000 |
| Water flow (GPM) 30 F temp.rise |
9.8 | 9.8 | 9.8 |
| Energy Factor | 0.92 | 0.92 | 0.92 |
| Temp. settings (F) | 98-140 | 98-140/185 | 98-140/185 |
| Weight (lbs) | 72.8 | 61.7 | 61.7 |
| Remote | PROVIDED | PROVIDED | INTEGRATED |
| Ultra-Low NOx | YES | YES | YES |
| WiFi ready | YES | YES | YES |
| Recirculation | YES | YES | YES |
| Warranty | 12 | 12 | 12 |
Features
- Super high efficiency
- Condensing technology
- Ultra Low NOx gas emission
- WiFi ready for remote control
- Recirculation for faster water delivery
- Mobile home certified
- Multiple venting options for condensing models
- Energy Star
- Isolation valves included
- Warranty - 12 years
Best of Noritz - Specifications
| Models / Specs | NRCP1112 | NRCB199 | NRC111 |
| Gas input (BTU) | 18,000 199,900 |
18,000 199,900 |
16,000 199,900 |
| Water flow (GPM) 30 F temp.rise |
11.1 | 11.1 | 11.1 |
| Energy Factor | 0.94 | 95% | 0.92 |
| Temp. settings (F) | 100-140 | 90-140 80-180 |
100-140 |
| Weight (lbs) | 85 | 95 | 66 |
| Remote | INTEGRATED | INTEGRATED | PROVIDED |
| Ultra-Low NOx | NO | NO | NO |
| WiFi ready | ? | ? | ? |
| Recirculation | YES | YES | NO |
| Warranty | 12 | 10 | 12 |
Features
- High efficient
- Condensing
- Highest water flow
- Warranty - 12 years
- Low NOx burner
- Large display (some models)
- Internal pump, recirculation compatible, two modes
- Commercial grade heat exhangers and dual flame burners
- Combined domestic and space heating (some models)
- Communication cable to connect two units into one system for bigger capacity
- Optional isolation valves
- Energy Star approved
Best of Takagi - Specifications
| Models / Specs | T-H3-DV-N | TK-540P-NIH |
| Gas input (BTU) | 19,500 199,000 |
19,500 199,000 |
| Water flow (GPM) 30 F temp.rise |
10 | 10 |
| Energy Factor | 0.93 | 0.93 |
| Temp. settings (F) | 100-140 | 100-140 |
| Weight (lbs) | 71 | 70 |
| Remote | INTEGRATED | INTEGRATED |
| Ultra-Low NOx | YES | YES |
| WiFi ready | ? | ? |
| Recirculation | NO | YES |
| Warranty | 15 | 15 |
Features
- High Efficiency
- Condensing technology
- Integrated temperature controller
- Warranty - 15 years
- Ultra Low NOx models available
- Easy-Link up to four units
- Multi-Link up to 20 units
- Energy Star approved
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