Viessmann · Vitodens 222-F (B2TB)
Viessmann Vitodens 222-F B2TB-125
The Vitodens 222-F B2TB-125 is the discontinued floor-standing combi boiler of Viessmann Canada's 222-F series: 19 to 125 MBH input at 95% AFUE with an integrated 26.5 USG (100 L) DHW tank. Owners should check their serial against the heat-exchanger safety notice.
Key figures
- Max input
- 125 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 222-F B2TB-125 in practice
The B2TB-125 was the single Canadian model of the floor-standing Vitodens 222-F: a combi that heats the house and stores domestic hot water in an integrated 26.5 USG (100 L) stainless steel tank. Viessmann Canada published its input at 19 to 125 MBH, 95% AFUE, with a continuous DHW draw of 3.3 USG/min and a peak draw of 60 USG over ten minutes.
The series has been discontinued in Canada: the product page carries a banner stating the Vitodens 222-F B2TB 'has been discontinued in Canada' and recommending the Vitodens 200-W B2HE series for new purchases. This record keeps the published specifications available for owners and servicers of existing units.
The heat-exchanger replacement safety notice covers Vitodens 222-F B2TB units manufactured between September 1, 2014 and April 25, 2017 (models 19 and 35). A BC owner of a 222-F should enter the boiler's 16-digit serial number on Viessmann Canada's recall page to confirm whether their unit is affected.
Best suited to
- Owners of existing 222-F units looking up specifications and service documents
- Anyone verifying whether their 2014-2017 B2TB is covered by the safety notice
- Comparison research against the Vitodens 200-W B2HE that Viessmann recommends today
Applicability and support
- Model number
- B2TB-125
- 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 | ||
| Input, minimum (natural gas) | 19 MBH | 5.5 kW |
| Input, maximum (natural gas) | 125 MBH | 37 kW |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95% AFUE per the Canadian product page, which also cites up to 98% at full modulation. |
| Domestic hot water | ||
| Integrated DHW tank | 26.5 USG (100 L) | |
| Continuous DHW draw | 3.3 USG/min | Based on a 70°F temperature rise (50°F to 120°F), per the Canadian product page. |
| Peak DHW draw | 60 USG per 10 minutes | Based on a 70°F temperature rise (50°F to 120°F), per the Canadian product page. |
| Domestic hot water | Combi: space heating and DHW with an integrated storage tank | |
| Physical and connections | ||
| Weight | 302 lb | 137 kg |
| Operating limits and other | ||
| Fuel | Natural gas or liquid propane | No fuel-conversion kit required per the Canadian product page. |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
Is my Vitodens 222-F affected by the safety notice?
Viessmann Canada's notice covers B2TB units manufactured between September 1, 2014 and April 25, 2017 (models 19 and 35). Check the 16-digit serial number on the recall page, or contact recall@viessmann.ca at 1-888-414-9157.
Can I still buy a Vitodens 222-F?
No. The Canadian product page states the series 'has been discontinued in Canada' and recommends the Vitodens 200-W B2HE series for anyone purchasing a new residential gas-fired boiler.
What DHW figures does Viessmann publish for the B2TB-125?
A 26.5 USG (100 L) integrated tank, a 3.3 USG/min continuous draw and a peak draw of 60 USG over ten minutes, based on a 70°F temperature rise (50°F to 120°F).
Questions about the Viessmann Vitodens 222-F B2TB-125?
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
- Viessmann Canada — Vitodens 222-F, B2TB product page · accessed September 7, 2026
- Viessmann Canada — Safety Notice for Vitodens 200/222 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.