Noritz · NRC Series Tankless Water Heaters
Noritz NRC661A-DV
The Noritz NRC661A-DV is a high-efficiency tankless water heater in the NRC Series — a DHW-only appliance, not a boiler — firing 15,000 to 120,000 BTU/h with 6.6 GPM maximum flow at 0.89 UEF.
Key figures
- Max input
- 120 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- 15 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Noritz NRC661A-DV in practice
The NRC661A-DV is part of Noritz's NRC Series. Its official product page prints an input range of 15,000 to 120,000 BTU/h and a flow range of 0.5 to 6.6 GPM, with a 0.89 Uniform Energy Factor. It is a domestic-hot-water appliance with no hydronic heating circuit, so it is recorded here as a DHW-only water heater.
The unit measures 23.6" high by 13.8" wide by 6.7" deep, weighs 39 lb, installs indoor only and runs on 120 VAC. Temperature settings are printed at 115–140°F.
Noritz's July 2025 blog announced a Vancouver, BC warehouse for Canadian wholesaler orders covering tankless water heaters and boilers, naming the NRCB combi specifically; no Canadian availability statement was found on this model's page, so Canadian availability is recorded as unknown. For space heating, Noritz's combi boiler is the NRCB; the NRC661A-DV covers domestic hot water only.
Best suited to
- Domestic hot water at up to 120,000 BTU/h input
- 6.6 GPM maximum flow with high-efficiency tankless water heater operation
- Indoor only installation
Applicability and support
- Model number
- NRC661A-DV
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Noritz. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 15 MBH | 15,000 BTU/h, as printed on the official product page. |
| Input, maximum | 120 MBH | 120,000 BTU/h, as printed on the official product page. |
| Efficiency | ||
| Uniform Energy Factor (UEF) | 0.89 UEF | 0.89 UEF as printed on the official product page; UEF is a dimensionless efficiency factor, not an AFUE percentage. |
| Domestic hot water | ||
| Flow rate | 0.5 – 6.6 GPM | As printed on the official product page. |
| Physical and connections | ||
| Weight | 39 lb | As printed on the official product page. |
| Height | 23.6 in | |
| Width | 13.8 in | |
| Depth | 6.7 in | |
| Electrical | ||
| Power supply | 120 VAC (60 Hz) | |
| Operating limits and other | ||
| Technology | High-efficiency tankless water heater | Recorded as a DHW appliance: this model is not a boiler and has no space-heating circuit. |
| Temperature settings | 115–140°F | As printed on the official product page. |
| Install location | Indoor only | |
Alerts documented for this model
None documented yet.
Frequently asked questions
Is the Noritz NRC661A-DV a boiler?
No. The NRC661A-DV is a high-efficiency tankless water heater for domestic hot water only; it has no space-heating circuit. Noritz's combi boiler is the NRCB.
What are the printed ratings of the NRC661A-DV?
The official product page prints 15,000–120,000 BTU/h input, 0.5–6.6 GPM flow and 0.89 UEF.
Is the NRC661A-DV available in Canada?
Boilers.ca found no Canadian availability statement on the product page, so Canadian availability is recorded as unknown. Noritz's official July 2025 blog states its Vancouver warehouse stocks tankless water heaters and boilers for Canadian wholesaler orders (naming the NRCB); confirm this model with a distributor.
Questions about the Noritz NRC661A-DV?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Noritz — NRC661A-DV product page · accessed September 9, 2026
- Noritz blog — Noritz opens new warehouse in Vancouver dedicated to shipping tankless water heaters and boilers to Canadian distributors · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.