Viessmann · Vitodens 200-W (B2HB)
Viessmann Vitodens 200-W B2HB 26, 94
The Vitodens 200-W B2HB 26, 94 steps the previous-generation line to 94 MBH: 19 to 94 MBH natural gas input (31 to 94 MBH on propane) at 95.0% AFUE in the 110 lb (50 kg) compact cabinet.
Key figures
- Max input
- 94 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 19 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Viessmann Vitodens 200-W B2HB 26, 94 in practice
The B2HB 26, 94 is the middle size of the B2HB small chassis group: a wall-hung condensing boiler rated 95.0% AFUE with a printed natural gas input of 19-94 MBH (5.5-27 kW) and a higher 31-94 MBH (9-27 kW) propane range. Output is 18-88 MBH (5-26 kW) with a 77 MBH Net AHRI rating.
It shares the 110 lb (50 kg), 17¾ x 15.7 x 41 in (450 x 400 x 1040 mm) cabinet and 45 psig maximum operating pressure with the B2HB 19, 68 and 35, 125. The B2HB 26 is one of the three models named in Viessmann Canada's heat-exchanger replacement safety notice, which covers units manufactured between September 1, 2014 and April 25, 2017.
Best suited to
- Owners of existing B2HB 26/94 units checking safety-notice applicability
- Homes whose heat-loss calculation fits within 94 MBH of input
- Comparing the B2HB generation with the current B2HE 85 and 120
Applicability and support
- Model number
- B2HB 26, 94
- Canadian availability
- historical
- Production status
- discontinued
- 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 | ||
| CSA input, minimum (natural gas) | 19 MBH | 5.5 kW, per the technical data manual |
| CSA input, maximum (natural gas) | 94 MBH | 27 kW, per the technical data manual |
| CSA input (liquid propane) | 31-94 MBH | Printed LPG range; minimums are higher than natural gas on the 26/94 and larger sizes. |
| Output | ||
| CSA output / DOE heating capacity (natural gas) | 18-88 MBH | 5-26 kW, based on 140°F / 120°F supply/return |
| Net AHRI rating | 77 MBH | Based on piping and pick-up allowance of 1.15. |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95.0% AFUE on all B2HB sizes per the technical data manual; up to 98% at full modulation. |
| Physical and connections | ||
| Weight | 110 lb | 50 kg |
| Width | 17.75 in | 450 mm |
| Depth | 15.7 in | 400 mm |
| Height | 41 in | 1040 mm |
| Operating limits and other | ||
| Fuel | Natural gas or liquid propane | As printed in the technical data manual's CSA input rows. |
| Boiler water content | 1.02 USG | |
| Maximum operating pressure | 45 psig | At 210°F (99°C). |
Manuals
- Technical Data Manual — Vitodens 200-W B2HB 19 to 57, 68 to 199, doc 5461 883 - 185461 883 - 18 · 2025-04
- Installation Instructions — Vitodens 200-W B2HB 19-35, rev 1616 · 2025-04
- Service Instructions — Vitodens 200-W B2HB 19-35, rev 2727 · 2025-04
- Installation Instructions — Vitodens 200-W B2HB 45-57, rev 1515 · 2025-04
- Service Instructions — Vitodens 200-W B2HB 45-57, rev 2121 · 2025-04
Alerts documented for this model
None documented yet.
Frequently asked questions
What is the input range of the B2HB 26, 94?
19-94 MBH (5.5-27 kW) on natural gas and 31-94 MBH (9-27 kW) on liquid propane, with 18-88 MBH output and a 77 MBH Net AHRI rating at 95.0% AFUE.
Is the B2HB 26 covered by the safety notice?
Yes. Viessmann Canada's heat-exchanger replacement notice names B2HB models 19, 26 and 35 manufactured between September 1, 2014 and April 25, 2017. Check the 16-digit serial number on the recall page or contact recall@viessmann.ca.
How does the B2HB 26, 94 differ from the B2HB 35, 125?
Both share the 110 lb cabinet, 95.0% AFUE and 45 psig rating; the 35, 125 fires to 125 MBH on natural gas against the 26, 94's 94 MBH. Propane minimums are the same 31 MBH on both.
Questions about the Viessmann Vitodens 200-W B2HB 26, 94?
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 B2HB 19, 68 vs B2HB 26, 94Comparison
- Viessmann Vitodens 200-W B2HB 26, 94 vs B2HB 35, 125Comparison
- Viessmann Vitodens 200-W B2HB 19, 68Same series
- Viessmann Vitodens 200-W B2HB 35, 125Same series
- Viessmann Vitodens 200-W B2HB 45, 160Same series
- Viessmann Vitodens 200-W B2HB 57, 199Same series
- Vitodens 200-W (B2HB) series hub
- Buying guide
Sources and verification
- Technical Data Manual — Vitodens 200-W B2HB 19 to 57, 68 to 199, doc 5461 883 - 18 · 5461 883 - 18 · accessed September 9, 2026
- Viessmann Canada — Current product manuals · accessed September 9, 2026
- Viessmann Canada — Safety Notice for Vitodens 200/222 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.