Two Japanese tankless brands. Different distribution and market position.
Residential comparison
| Takagi T-H3-DV-N | Noritz NRC1111 | |
|---|---|---|
| BTU / GPM | 199k / 10.0 | 199k / 11.1 |
| Heat exchanger warranty | 15 years | 12 years |
| Built-in recirc option | No | EZTR series only |
| Heat exchanger material | Stainless | ecoTOUGH 316L stainless |
| Typical price | $1,449-1,749 | $1,599-1,899 |
Takagi slightly cheaper and has longer warranty. Noritz has heavier-gauge heat exchanger material (316L vs 304) and EZTR recirculation option.
Commercial cascade
- Takagi T-T: up to 6 units
- Noritz NCC: up to 12 units
Noritz wins for larger commercial. Takagi T-T adequate for small-to-medium commercial.
When Takagi wins
- Price-sensitive residential
- 15-year warranty preferred over 12-year
- AO Smith distribution available locally
- Small commercial (under 6 units cascade adequate)
When Noritz wins
- Commercial cascade over 6 units
- Built-in recirculation needed (EZTR)
- Hard-water region — 316L heat exchanger advantage
- Compact tank-replacement with recirc (EZTR40 unique)
Bottom line
For residential value, Takagi. For commercial cascade scale and built-in recirc, Noritz.