Viessmann · Vitodens 200-W (B2HA, 285–530 MBH)
Viessmann Vitodens 200-W B2HA-311
The Vitodens 200-W B2HA-311 is the second size of Viessmann Canada's high-input B2HA line: 71,000 to 311,000 BTU (21 to 91 kW) of input in the 194 lb wall-hung condensing boiler, with a printed thermal-efficiency row (ANSI Z21,13/CSA 4.9) of 94.5%.
Key figures
- Max input
- 311 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- 71 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Viessmann Vitodens 200-W B2HA-311 in practice
The B2HA-311 steps the top of the firing range to 311,000 BTU (91 kW) while keeping the line's 71,000 BTU (21 kW) minimum input. It is part of the wall-hung Vitodens 200-W family that Viessmann Canada positions for large homes, and it weighs 194 lb (88 kg) in the 19 x 21 x 43½ inch (480 x 530 x 1105 mm) cabinet it shares with the B2HA-285 and B2HA-352.
Unlike the B2HA-285 — whose spec row prints 92% AFUE — the page prints the B2HA-311's efficiency as a thermal-efficiency row, 94.5% per ANSI Z21,13/CSA 4.9. The two rows are labelled differently on the page and are not directly comparable; the same page's marketing copy separately cites an 'up to 95% AFUE rating'.
Construction is the stainless steel MatriX cylinder burner and Inox-Radial heat exchanger with Lambda Pro combustion management, on natural gas or liquid propane with no fuel-conversion kit required. The page's technical table also carries legacy B2HB rows; only the B2HA-311 figures are used here.
Best suited to
- Large homes whose heat-loss calculation needs roughly 285 to 311 MBH of ceiling
- Installs wanting more input headroom than the B2HA-285 in the same cabinet
- Multi-zone systems and plants with a substantial indirect-tank load
Applicability and support
- Model number
- B2HA-311
- Canadian availability
- available
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Series terms
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 Viessmann. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum (natural gas) | 71 MBH | 71,000 BTU (21 kW), per the Canadian product page |
| Input, maximum (natural gas) | 311 MBH | 311,000 BTU (91 kW), per the Canadian product page |
| Efficiency | ||
| Thermal efficiency (ANSI Z21,13/CSA 4.9) | 94.5 % | 94.5% for the B2HA-311 spec row on the Canadian product page. |
| Venting and air | ||
| Maximum vent run | 180 ft | Vent length up to 180 ft per the Canadian product page; common venting of up to four boilers is a series-level option. |
| Physical and connections | ||
| Weight | 194 lb | 88 kg |
| Width | 19 in | 480 mm |
| Depth | 21 in | 530 mm |
| Height | 43.5 in | 1105 mm |
| Operating limits and other | ||
| Fuel type | Natural gas (NG) or liquid propane gas (LPG) | No fuel-conversion kit required per the Canadian product page. |
Manuals
Alerts documented for this model
- 0F
- 10
- 18
- 1A
- 1B
- 1F
- 20
- 28
- 30 140
- 38 140
- 40
- 44
- 48
- 4C
- 50
- 51
- 58
- 59
- 90
- 91
- 92
- 93
- 94
- 98
- 99
- 9A
- 9B
- 9C
- 9E
- 9F
- A3
- A4
- A7
- B0 141
- B1
- B5
- B7
- B8 141
- BA
- BB
- BC
- BD
- BE
- BF
- C1
- C2
- C3
- C4
- C5
- CD
- CF
- D6
- D7
- D8
- DA
- DB
- DC
- DD
- DE
- DF
- E0
- E1 202
- E2 201
- E3 204
- E4
- E5 226
- E7 192
- E8 189
- EA 193
- EB 194
- EC 67 or 195
- ED 191
- EE 132
- EF 138
- F0
- F1 135
- F2 129
- F3 139
- F6
- F8 148
- F9 151 or 152
- FA 154
- FC 190
- FD 227
- FD -
- FE 158, 159, 162 or 225
- FF 224
- N/A 2
- N/A 3
- N/A 5
- N/A 6
- N/A 8
- N/A 29
- N/A 33
Frequently asked questions
How does the B2HA-311 differ from the B2HA-285?
Both fire from the same 71,000 BTU (21 kW) minimum and share the 194 lb cabinet. The 311's maximum input is 311,000 BTU (91 kW) against the 285's 285,000 BTU (83 kW), and the page labels their efficiency rows differently: 92% AFUE for the 285 versus 94.5% thermal efficiency (ANSI Z21,13/CSA 4.9) for the 311.
Is the B2HA-311 rated 95% AFUE?
The page's marketing copy cites 'up to 95% AFUE rating', but its spec table prints the B2HA-311's efficiency as 94.5% thermal efficiency per ANSI Z21,13/CSA 4.9 — a differently labelled row, not an AFUE figure.
Can the B2HA-311 run on propane?
Yes. The page states the series uses natural gas or liquid propane with no fuel-conversion kit required; the printed input figures are for natural gas.
Questions about the Viessmann Vitodens 200-W B2HA-311?
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.
Compare and explore
- Viessmann Vitodens 200-W B2HA-285 vs B2HA-311Comparison
- Viessmann Vitodens 200-W B2HA-311 vs B2HA-352Comparison
- Viessmann Vitodens 200-W B2HA-285Same series
- Viessmann Vitodens 200-W B2HA-352Same series
- Viessmann Vitodens 200-W B2HA-399Same series
- Viessmann Vitodens 200-W B2HA-530Same series
- Vitodens 200-W (B2HA, 285–530 MBH) series hub
- Buying guide
Sources and verification
- Viessmann Canada — Vitodens 200-W, B2HA/B2HB product page · accessed September 8, 2026
Facts checked September 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.