The NCC commercial line is Noritz's flagship commercial product — and the segment where Noritz dominates. Single units handle small-commercial applications; the Quick Connect cord cascade enables up to 12 units in series for medium-to-large commercial DHW.
NCC lineup
| Model | BTU | GPM (peak) | Cascade |
|---|---|---|---|
| NCC1991 | 199,900 | 11.1 | Yes (up to 12 units) |
| NCC199CDV | 199,900 | 11.1 | Yes |
| NCC300 | 300,000 | 15.0 | Yes |
Outdoor commercial variant (NCC199OD) available for exterior wall-mount commercial installs.
Cascade dominance
The cascade story is what makes NCC dominant in commercial DHW. See our commercial cascade hub for the full breakdown. Summary: up to 12 NCC units connected via Quick Connect cord and managed by a single cascade controller, providing scalable capacity (up to 2.4 MBTU) with built-in redundancy and wear leveling.
When NCC is right
- Commercial DHW — restaurants, hotels, salons, multi-family, laundromats
- High-demand luxury residential where you want commercial-grade duty cycle
- Cascade-required applications (over 199 kBTU sustained demand)
- Applications needing redundancy — hotels and restaurants where DHW failure is revenue-impacting
When NRC is right instead
- Standard residential — NCC is overkill at higher cost
- Single-unit installs under 199 kBTU residential
NRC and NCC look similar but NCC adds: 10-year commercial heat-exchanger warranty, cascade capability, commercial-grade cabinet sealing, $500-700 cost premium.
Common NCC applications
| Application | Typical config |
|---|---|
| Small restaurant (under 50 seats) | 2-3 NCC1991 cascade |
| Medium restaurant (100 seats) | 4-6 NCC1991 cascade |
| Small hotel (under 50 rooms) | 4-6 NCC1991 cascade |
| Large hotel (100+ rooms) | 8-12 NCC1991 cascade or NCC300 array |
| Salon / spa | 2-4 NCC1991 cascade |
| Laundromat | 4-8 NCC1991 cascade |
| Multi-family residential (central DHW) | 6-12 NCC1991 or NCC300 cascade |
Warranty
12 years heat exchanger residential / 10 years heat exchanger commercial / 5 years parts / 1 year labor. The 10-year commercial heat exchanger warranty is the longest in the commercial cascade segment.
Pricing
- NCC1991: $1,899-2,199
- NCC199CDV: $1,999-2,299
- NCC300: $3,399-3,899
- NCC199OD outdoor: $2,099-2,399
- Cascade controller: $1,500-3,000 depending on cascade size
- Quick Connect cord: $100-200 per unit pigtail
Install
Use a Noritz-trained commercial installer. Cascade installs are not appropriate for generic plumbers. See install guide.
Bottom line
For commercial DHW applications, NCC cascade is the segment leader. Restaurant, hotel, salon, multi-family — NCC is the default answer. Single NCC1991 units work for small commercial; cascade configurations of 4-12 units handle medium-to-large applications. Use a Noritz commercial-trained installer.