Viessmann · Vitodens 200-W (B2HE)
Viessmann Vitodens 200-W B2HE-120
The Vitodens 200-W B2HE-120 is the mid-range model of Viessmann Canada's flagship B2HE series: 8.5 to 120 MBH input at 95% AFUE in the 108 lb cabinet, covering many detached Lower Mainland homes.
Key figures
- Max input
- 120 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 8.5 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Viessmann Vitodens 200-W B2HE-120 in practice
The B2HE-120 fires from 8.5 to 120 MBH input (2.5 to 35.2 kW), making it the B2HE most often matched to a typical detached home. It shares the small cabinet, 108 lb (49 kg) weight and 8.5 MBH minimum fire with the B2HE-85, so stepping up from the 85 changes nothing in the mechanical room — only the available input ceiling.
Like the rest of the series it is heating-only with domestic hot water from an indirect tank, and it carries the 7-inch colour touchscreen, built-in WiFi and high-efficiency ECM pump of the 200-W platform at 95% AFUE.
In BC's mild climate the modulation story is the same as the 85's: an 8.5 MBH minimum fire lets either boiler idle through shoulder seasons. The 120 is the choice when the heat-loss calculation plus indirect-tank recovery needs headroom beyond 85 MBH.
Best suited to
- Detached homes whose heat-loss calculation fits within 120 MBH
- Homes pairing the boiler with an indirect tank for domestic hot water
- Buyers who want the 200-W control and screen without a larger cabinet
Applicability and support
- Model number
- B2HE-120
- 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) | 8.5 MBH | 2.5 kW |
| Input, maximum (natural gas) | 120 MBH | 35.2 kW |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95% AFUE on all models per the Canadian product page; the page also cites up to 98% at full modulation. |
| Domestic hot water | ||
| Domestic hot water | Not a combi; pair with an indirect tank | |
| Venting and air | ||
| Maximum vent run | 198 ft | As published (60 m on the page); see the technical data manual for per-size and pipe-material limits. |
| Physical and connections | ||
| Weight | 108 lb | 49 kg |
| Width | 17.75 in | 450 mm |
| Depth | 19.75 in | 500 mm |
| Height | 33.75 in | 859 mm |
| Operating limits and other | ||
| Fuel | Natural gas or liquid propane | No fuel-conversion kit required per the Canadian product page. |
| Turndown ratio | up to 14:1 | Manufacturer claim; natural gas at high fire. |
Manuals
- Service Instructions — Vitodens 200-W B2HE, doc 6167 813 - 236167 813 - 23 · 2026-02
- Installation Instructions — Vitodens 200-W B2HE, doc 6167 812 - 156167 812 - 15 · 2026-02
Alerts documented for this model
- F.5
- F.7
- F.8
- F.11
- F.12
- F.13
- F.14
- F.15
- F.16
- F.29
- F.30
- F.50
- F.57
- F.58
- F.59
- F.62
- F.63
- F.67
- F.68
- F.69
- F.70
- F.71
- F.72
- F.73
- F.74
- F.77
- F.89
- F.91
- F.92
- F.94
- F.100
- F.104
- F.142
- F.160
- F.161
- F.163
- F.180
- F.182
- F.183
- F.184
- F.185
- F.299
- F.342
- F.345
- F.346
- F.348
- F.349
- F.350
- F.351
- F.352
- F.353
- F.354
- F.355
- F.357
- F.359
- F.361
- F.366
- F.367
- F.369
- F.370
- F.372
- F.373
- F.377
- F.378
- F.379
- F.380
- F.381
- F.382
- F.383
- F.384
- F.385
- F.386
- F.387
- F.388
- F.395
- F.396
- F.399
- F.400
- F.401
- F.402
- F.403
- F.404
- F.405
- F.406
- F.408
- F.410
- F.416
- F.425
- F.430
- F.446
- F.447
- F.448
- F.449
- F.450
- F.451
- F.452
- F.453
- F.454
- F.455
- F.456
- F.457
- F.458
- F.463
- F.464
- F.467
- F.468
- F.471
- F.473
- F.474
- F.477
- F.517
- F.527
- F.528
- F.530
- F.538
- F.540
- F.544
- F.545
- F.546
- F.547
- F.548
- F.549
- F.574
- F.666
- F.667
- F.668
- F.669
- F.670
- F.671
- F.672
- F.673
- F.691
- F.762
- F.763
- F.764
- F.765
Frequently asked questions
Why do the B2HE-85 and B2HE-120 have the same minimum fire?
Viessmann Canada lists an 8,500 BTU/h minimum input for both the 85 and the 120, so the two models differ only at the top of the range: 85 vs 120 MBH maximum.
Is the B2HE-120 more efficient than the B2HE-85?
Both are rated 95% AFUE on the Canadian page, which also cites up to 98% at full modulation for the series. Efficiency in practice depends on matching the boiler to the home's load.
What controls does the B2HE-120 have?
A 7-inch colour touchscreen with connections for up to four heating circuits, integrated WiFi for the ViCare app, and Lambda Pro Plus combustion management, per Viessmann Canada.
Questions about the Viessmann Vitodens 200-W B2HE-120?
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 B2HE-85 vs B2HE-120Comparison
- Viessmann Vitodens 200-W B2HE-120 vs B2HE-150Comparison
- IBC VX 110 vs Viessmann Vitodens 200-W B2HE-120Comparison
- Viessmann Vitodens 200-W B2HE-85Same series
- Viessmann Vitodens 200-W B2HE-150Same series
- Viessmann Vitodens 200-W B2HE-199Same series
- Vitodens 200-W (B2HE) series hub
- Buying guide
Sources and verification
- Viessmann Canada — Vitodens 200-W, B2HE product page · accessed September 7, 2026
- Service Instructions — Vitodens 200-W B2HE, doc 6167 813 - 23 · 6167 813 - 23 · accessed September 7, 2026
- Installation Instructions — Vitodens 200-W B2HE, doc 6167 812 - 15 · 6167 812 - 15 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.