Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Dunkirk Boilers · Series
The Royal Series is Dunkirk's current residential combi/condensing line: the CO (Combi) models — CO-90/150/200, producing domestic hot water up to 5.1 GPM — and the CH (Central Heat) heating-only models CH-80 through CH-180, all wall-hung on a stainless steel water-tube heat exchanger at 95.2% AFUE with up to 10:1 turndown. The commercial CH sizes are documented by Dunkirk on a separate page and not modelled here.
Series facts
95.2% AFUE printed for every residential Royal model in the official brochure table (PN 240013861); the product pages rate the series high efficiency at 95.2% AFUE with up to 10:1 turndown.
The Royal Series is the current condensing line on Dunkirk's official pages, in two residential flavours sharing one platform: the CO (Combi) models — three sizes from 80,000 to 200,000 BTU/hr input — produce domestic hot water alongside central heating in one appliance, while the CH (Central Heat) models are five heating-only sizes from 80,000 to 180,000 BTU/hr input. Boilers.ca models the residential codes as printed on the official brochure table (PN 240013861 Rev. 08/12/26): CO-90/150/200 with combi:true and CH-80/100/120/150/180 as heating-only central-heat units, all at 95.2% AFUE with up to 10:1 turndown on the next-generation enhanced stainless steel water-tube heat exchanger.
Every residential size is wall-hung in the shared cabinet (H 28.23" x W 17.4" x D 16.93" per the brochure callouts, with an additional plate on the front of the combis), vented as a twin-pipe direct-vent appliance with the included 3-in-1 adjustable vent connector (PVC, CPVC, polypropylene or stainless steel; flue 3" with a 2" reducer), with 3/4" NPT CH supply/return connections (1/2" NPT DHW on the combis), 3/4" NPT gas, cascade control to 16 boilers, 0-10 V and Modbus, and a control display settable to 18 languages. The pages rate the design at under 101 lb and price the line with a 10-year heat exchanger / 5-year parts limited warranty (residential).
The commercial Royal CH models — three sizes documented on a separate commercial page (copy prints a 299,000 to 470,000 BTU/hr range with CH-299/399/499 model references, rated up to 95.1% AFUE on the CH-299 and up to 95.6% thermal on the CH-399/499) — use the DUO Power stainless steel water-tube heat exchanger and their own commercial IOM (E93.1608.035.915.B). Boilers.ca records the Royal series canadianStatus as 'unknown': these are the US-market figures Dunkirk prints, and no official Canadian (NRCan/CSA) rating listing was verified on the pages checked on September 9, 2026. Gas work belongs with a licensed contractor against the residential IOM (E93.1907.035.915.C).
Highlights
10-year heat exchanger limited warranty and 5-year parts limited warranty (residential), as printed on the official Royal CO and CH product pages (Royal Series Warranty Rev. A, PN 240013842).
Models
One canonical page per model with input, output and efficiency kept separate.
Dunkirk Boilers
The Royal CO-90 is Dunkirk's 90 MBH-class wall-hung residential combi: 9 to 80 MBH central-heating input with DHW input from 9 to 90 MBH (2.5 GPM at a 70 °F rise), 95.2% AFUE, 74 MBH heating capacity and up to 10:1 turndown.
Dunkirk Boilers
The Royal CO-150 is Dunkirk's 150 MBH-class wall-hung residential combi: 15 to 120 MBH central-heating input with DHW input from 15 to 150 MBH (3.7 GPM at a 70 °F rise), 95.2% AFUE, 110 MBH heating capacity and up to 10:1 turndown.
Dunkirk Boilers
The Royal CO-200 is Dunkirk's 200 MBH-class wall-hung residential combi: 20 to 180 MBH central-heating input with DHW input from 20 to 200 MBH (5.1 GPM at a 70 °F rise), 95.2% AFUE, 167 MBH heating capacity and up to 10:1 turndown.
Dunkirk Boilers
The Royal CH-80 is Dunkirk's 80 MBH-class wall-hung residential heating-only boiler: 8 to 80 MBH central-heating input at 95.2% AFUE with 74 MBH heating capacity, a 64 MBH net AHRI water rating and up to 10:1 turndown.
Dunkirk Boilers
The Royal CH-100 is Dunkirk's 100 MBH-class wall-hung residential heating-only boiler: 10 to 100 MBH central-heating input at 95.2% AFUE with 92 MBH heating capacity, a 80 MBH net AHRI water rating and up to 10:1 turndown.
Dunkirk Boilers
The Royal CH-120 is Dunkirk's 120 MBH-class wall-hung residential heating-only boiler: 12 to 120 MBH central-heating input at 95.2% AFUE with 110 MBH heating capacity, a 96 MBH net AHRI water rating and up to 10:1 turndown.
Dunkirk Boilers
The Royal CH-150 is Dunkirk's 150 MBH-class wall-hung residential heating-only boiler: 15 to 150 MBH central-heating input at 95.2% AFUE with 139 MBH heating capacity, a 121 MBH net AHRI water rating and up to 10:1 turndown.
Dunkirk Boilers
The Royal CH-180 is Dunkirk's 180 MBH-class wall-hung residential heating-only boiler: 18 to 180 MBH central-heating input at 95.2% AFUE with 165 MBH heating capacity, a 143 MBH net AHRI water rating and up to 10:1 turndown.
| Specification | Dunkirk Royal CO-90 | Dunkirk Royal CO-150 | Dunkirk Royal CO-200 | Dunkirk Royal CH-80 | Dunkirk Royal CH-100 | Dunkirk Royal CH-120 | Dunkirk Royal CH-150 | Dunkirk Royal CH-180 |
|---|---|---|---|---|---|---|---|---|
| Central-heating input, minimum | 9 MBH | 15 MBH | 20 MBH | 8 MBH | 10 MBH | 12 MBH | 15 MBH | 18 MBH |
| Central-heating input, maximum | 80 MBH | 120 MBH | 180 MBH | 80 MBH | 100 MBH | 120 MBH | 150 MBH | 180 MBH |
| output-max | — | — | — | — | — | — | — | — |
| AFUE | 95.2 % | 95.2 % | 95.2 % | 95.2 % | 95.2 % | 95.2 % | 95.2 % | 95.2 % |
| Turndown | Up to 10:1 | Up to 10:1 | Up to 10:1 | Up to 10:1 | Up to 10:1 | Up to 10:1 | Up to 10:1 | Up to 10:1 |
| vent-max-3 | — | — | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — | — | — |
| weight | — | — | — | — | — | — | — | — |
Read the full comparison: Dunkirk Royal CO-90 vs CO-150 →
Read the full comparison: Dunkirk Royal CO-150 vs CO-200 →
Read the full comparison: Dunkirk Royal CO-90 vs CH-80 →
Read the full comparison: Dunkirk Royal CH-80 vs CH-100 →
Read the full comparison: Dunkirk Royal CH-100 vs CH-120 →
Error codes and alerts
Manuals
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.
Services for Dunkirk Boilers boilers
CO is Dunkirk's Combi line (domestic hot water plus central heating in one appliance) and CH is the Central Heat line — heating-only models that leave domestic hot water to a separate tank or water heater. The CO-90/150/200 and CH-80 through CH-180 codes are printed that way in the official brochure table.
95.2% AFUE for every residential model in the official brochure table, with the product pages rating the series 'High Efficiency @ 95.2% AFUE with up to 10:1 Turndown'. Dunkirk's commercial CH sizes print differently (95.1% AFUE on the CH-299 and thermal figures up to 95.6% on the CH-399/499).
Unknown from official pages: dunkirk.com carries US-market catalogues and no Canadian (NRCan/CSA) rating listing or distributor statement was found on the pages checked on September 9, 2026, so Boilers.ca records canadianStatus 'unknown'.
The two ECR International brands are twins on the same family platform — the Royal residential brochure (PN 240013861) prints ratings identical to the ECR Oneida residential brochure (PN 240013863) and both share the residential IOM print E93.1907.035.915.C — but Dunkirk and Utica remain separate brand catalogues.
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On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.