Noritz NRCB199DV
The Noritz NRCB199DV (GHQ-C3201WX-FF US) is the larger NRCB condensing combi: 18,000 to 120,000 BTU/h of heating input with DHW input to 199,900 BTU/h and flow to 11.1 GPM, rated 95.0% AFUE in the same 95 lb cabinet as the NRCB180DV.
Key figures
- Max input
- 120 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 18 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Noritz NRCB199DV in practice
The NRCB199DV tops the NRCB series: its standard (DHW) side fires 18,000 to 199,900 BTU/h with DHW flow of 0.4 to 11.1 GPM, while heating-mode input runs 18,000 to 120,000 BTU/h, all at 95.0% AFUE per the official product page. Like the NRCB180DV it is a wall-hung condensing combi built around 316L stainless steel primary and secondary heat exchangers with a low-NOx premix burner, marketed by Noritz for simultaneous domestic hot water and space heating.
Physically the NRCB199DV is identical to the NRCB180DV: 27" high by 18.5" wide by 12.8" deep, 95 lb, 1" heating water connections with 3/4" DHW and gas connections, and sealed combustion direct venting in 2" or 3" PVC, CPVC, polypropylene or stainless steel pipe (ULC S636-certified plastic venting in Canada). What the 199 adds is headroom at the top of both ranges, which is what a larger home or a heavier hot-water draw needs.
Noritz stocks the NRCB at its Vancouver, BC warehouse for Canadian wholesaler orders effective August 1, 2025, and the shared NRCB installation manual (SBB80UB-5, Rev. 04/21) covers US and Canadian codes (CSA B149.1). Boilers.ca found no Canadian CRN registration numbers or Canadian warranty terms on noritz.com; purchases run through wholesaler-distributors.
Best suited to
- Larger homes whose heat-loss calculation needs up to 120 MBH of heating input
- Households with heavier hot-water draws wanting DHW input to 199,900 BTU/h and flow to 11.1 GPM
- Combi replacements where the load outgrows the NRCB180DV but the same cabinet must fit the wall
Applicability and support
- Model number
- NRCB199DV
- Canadian availability
- available
- 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 | ||
| Heating input, minimum | 18 MBH | Space-heating mode input; 18,000 BTU/h. |
| Heating input, maximum | 120 MBH | Space-heating mode input; 120,000 BTU/h per the official product page. |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95.0% AFUE as printed on the official product page and spec sheet. |
| Domestic hot water | ||
| DHW input, minimum | 18 MBH | Standard (DHW) input; 18,000 BTU/h. |
| DHW input, maximum | 199.9 MBH | Standard (DHW) input; 199,900 BTU/h per the official product page. |
| Venting and air | ||
| Venting | Sealed combustion direct vent; 2" or 3" PVC, CPVC, polypropylene or stainless steel | Per the installation manual venting section; in Canada, plastic vent systems must be certified to ULC S636. Convertible to single vent with kit #SV-CK-2. |
| Physical and connections | ||
| Weight | 95 lb | Per the official product page and spec sheet. |
| Width | 18.5 in | Per the official product page and spec sheet. |
| Height | 27 in | Per the official product page and spec sheet. |
| Depth | 12.8 in | Per the official product page and spec sheet. |
| Heating water connections | 1" in / 1" out | Per the official spec sheet. |
| Domestic hot water connections | 3/4" in / 3/4" out | Per the official spec sheet. |
| Gas connection | 3/4" NPT | Per the official spec sheet. |
| Pressure relief valve (heating) | 3/4" | ASME-certified, 30 psi, per the official spec sheet. |
| Auto feeder water inlet | 1/2" | Per the official spec sheet. |
| Operating limits and other | ||
| Fuel | Natural gas or propane | Official product identities include US NG and US LP versions (GHQ series). |
Manuals
- NRCB Installation Manual — Condensing Gas Combi Boiler, SBB80UB-5, Rev. 04/21SBB80UB-5, Rev. 04/21 · 2021-04
- NRCB Specification Sheet, SBB80U9-5, Rev. 04/21SBB80U9-5, Rev. 04/21 · 2021-04
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the input ranges of the NRCB199DV?
Space-heating input is 18,000 to 120,000 BTU/h and the standard (DHW) input is 18,000 to 199,900 BTU/h, per the official product page, at 95.0% AFUE. DHW flow is published at 0.4 to 11.1 GPM.
Is the NRCB199DV bigger than the NRCB180DV?
No. Both weigh 95 lb and measure 18.5 x 27 x 12.8 in with the same connections and venting. Only the ceilings differ: 120 MBH heating input and 199,900 BTU/h DHW input against 100 MBH and 180,000 BTU/h on the 180DV.
Is the NRCB199DV available in Canada?
Noritz's official blog states the NRCB is stocked at its Vancouver, BC warehouse for Canadian wholesaler orders effective August 1, 2025, and the NRCB installation manual covers Canada (CSA B149.1 with ULC S636-certified venting). Boilers.ca found no Canadian CRN registrations or Canadian warranty terms on noritz.com.
Questions about the Noritz NRCB199DV?
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 — NRCB199DV (GHQ-C3201WX-FF US) product page · accessed September 9, 2026
- NRCB Specification Sheet (SBB80U9-5, Rev. 04/21) · SBB80U9-5, Rev. 04/21 · accessed September 9, 2026
- NRCB Installation Manual (SBB80UB-5, Rev. 04/21) · SBB80UB-5, Rev. 04/21 · 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.