Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
Boilers.ca is a brand of ROMA Heating & Cooling · Licensed gas contractor LGA0202903
Viessmann · Series
The Vitocrossal 200 CI2 is Viessmann Canada's floor-standing commercial condensing boiler series on the Viessmann One Base control platform: six sizes, CI2-399 to CI2-2000, from 50 to 2000 MBH rated input, with a stainless steel Inox-Crossal heat exchanger, a modulating MatriX cylinder burner and Lambda PrO₂ combustion control.
Series facts
97% on the CI2-399 and CI2-500, 96.9% on the CI2-750, 96.8% on the CI2-1000, 96.6% on the CI2-1500 and 96.5% on the CI2-2000, per the per-size spec rows.
Viessmann Canada positions the Vitocrossal 200 CI2 as 'your first choice for mission-critical installations': a gas-fired floor-standing condensing boiler with a stainless steel Inox-Crossal heat exchanger, a modulating MatriX cylinder burner and Lambda PrO₂ self-calibrating active O₂ trim. It is a commercial product that the page says also suits custom residential applications, and it is cascade-ready with boilers installed side-by-side in arrangements of up to 16 units — the page markets cascade capacity up to 32,000 MBH.
The six Canadian sizes are CI2-399, CI2-500, CI2-750, CI2-1000, CI2-1500 and CI2-2000. Rated input on the page runs from a 50 MBH minimum on the CI2-399/500/1500 (75 MBH on the CI2-750, 100 MBH on the CI2-1000/2000) up to 399, 500, 750, 1000, 1500 or 2000 MBH maximum, printed as one NG/LPG range. Controls are the Viessmann One Base platform — a Vitotronic 200 heat management unit (HMU) with a 7-inch colour touchscreen HMI and built-in WiFi, two burner control units on the CI2 1500/2000 — with Modbus TCP/RTU and BACnet IP available through an external gateway (up to eight boilers per gateway).
Per-size spec rows print 97% combustion efficiency on the CI2-399/500 stepping down to 96.5% on the CI2-2000, against a marketed 'up to 98% thermal efficiency' headline and turndown 'up to 30:1'. The page's 'highest water volume in class (99 USG)' headline matches only the CI2-2000 row of the technical data manual, which prints 99 USG for the CI2-2000 but 113 USG for the CI2-1500. No primary boiler pump is required, altitude operation extends to 10,000 ft (3,000 m) without input derate, and the series carries a limited 10-year commercial warranty.
Highlights
Models
One canonical page per model with input, output and efficiency kept separate.
Viessmann
The Vitocrossal 200 CI2-399 is the entry size of Viessmann Canada's Vitocrossal 200 CI2 line: 50 to 399 MBH rated input (14.7 to 117 kW) at 97% combustion efficiency, weighing 789 lb (358 kg) with 29 USG of boiler water content.
Viessmann
The Vitocrossal 200 CI2-500 steps the top of the CI2 entry chassis to 500 MBH: 50 to 500 MBH rated input (14.7 to 147 kW) at 97% combustion efficiency, in the same 789 lb (358 kg) unit with 29 USG of boiler water content as the CI2-399.
Viessmann
The Vitocrossal 200 CI2-750 opens the second CI2 chassis: 75 to 750 MBH rated input (22.0 to 220 kW) at 96.9% combustion efficiency, weighing 963 lb (437 kg) with 50 USG of boiler water content.
Viessmann
The Vitocrossal 200 CI2-1000 is the first 1000 MBH model of the CI2 line: 100 to 1000 MBH rated input (29.3 to 293 kW) at 96.8% combustion efficiency, in the 963 lb (437 kg) middle chassis with 50 USG of boiler water content.
Viessmann
The Vitocrossal 200 CI2-1500 is the first model of the CI2 large chassis: 50 to 1500 MBH rated input (14.7 to 440 kW) — the widest printed firing range in the series — at 96.6% combustion efficiency, weighing 1812 lb (822 kg) with 113 USG of boiler water content.
Viessmann
The Vitocrossal 200 CI2-2000 tops the CI2 line at 2000 MBH: 100 to 2000 MBH rated input (29.3 to 586 kW) at 96.5% combustion efficiency, weighing 1969 lb (893 kg) with 99 USG of boiler water content.
| Specification | Viessmann Vitocrossal 200 CI2-399 | Viessmann Vitocrossal 200 CI2-500 | Viessmann Vitocrossal 200 CI2-750 | Viessmann Vitocrossal 200 CI2-1000 | Viessmann Vitocrossal 200 CI2-1500 | Viessmann Vitocrossal 200 CI2-2000 |
|---|---|---|---|---|---|---|
| Rated input, minimum (natural gas/LPG) | 50 MBH | 50 MBH | 75 MBH | 100 MBH | 50 MBH | 100 MBH |
| Rated input, maximum (natural gas/LPG) | 399 MBH | 500 MBH | 750 MBH | 1,000 MBH | 1,500 MBH | 2,000 MBH |
| output-max | — | — | — | — | — | — |
| afue | — | — | — | — | — | — |
| turndown | — | — | — | — | — | — |
| vent-max-3 | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — |
| Weight | 789 lb | 789 lb | 963 lb | 963 lb | 1,812 lb | 1,969 lb |
Read the full comparison: Viessmann Vitocrossal 200 CI2-399 vs CI2-500 →
Read the full comparison: Viessmann Vitocrossal 200 CI2-500 vs CI2-750 →
Read the full comparison: Viessmann Vitocrossal 200 CI2-750 vs CI2-1000 →
Read the full comparison: Viessmann Vitocrossal 200 CI2-1000 vs CI2-1500 →
Read the full comparison: Viessmann Vitocrossal 200 CI2-1500 vs CI2-2000 →
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 Viessmann boilers
Six sizes per Viessmann Canada: CI2-399, CI2-500, CI2-750, CI2-1000, CI2-1500 and CI2-2000. Rated input is printed as one NG/LPG range per model, from a 50 or 100 MBH minimum (75 MBH on the CI2-750) up to 399, 500, 750, 1000, 1500 or 2000 MBH maximum.
Per-size spec rows print 97% combustion efficiency on the CI2-399 and CI2-500, then 96.9%, 96.8%, 96.6% and 96.5% on the CI2-750, CI2-1000, CI2-1500 and CI2-2000. The page separately markets thermal efficiency up to 98% and a turndown ratio up to 30:1.
The technical data manual prints boiler water content of 29 USG (CI2-399/500), 50 USG (CI2-750/1000), 113 USG (CI2-1500) and 99 USG (CI2-2000). The page's '99 USG' water-volume headline matches the CI2-2000 row only.
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
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.