Viessmann · Vitodens 222-F (B2TA)
Viessmann Vitodens 222-F B2TA 19
The Vitodens 222-F B2TA 19 is the smaller of the two earlier-generation 222-F combis: 12 to 67 MBH NG/LPG input at 93.3% AFUE with an integrated 26.5 USG (100 L) DHW tank and a 1.8 USG/min continuous draw at a 70°F rise.
Key figures
- Max input
- 67 MBH
- Max CSA output
- —
- AFUE
- 93.3 %
- Min input
- 12 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Viessmann Vitodens 222-F B2TA 19 in practice
The B2TA 19 is a floor-mounted condensing combi-boiler with a modulating MatriX cylinder burner and an integrated 26.5 USG (100 L) stainless steel DHW tank. Its printed NG/LPG input range is 12-67 MBH (3.5-20 kW), output 10.9-61 MBH (3.2-18 kW), Net AHRI rating 53 MBH (15.5 kW) and AFUE 93.3%.
The DHW side is sized for lighter simultaneous demand: the technical data manual prints a 1.8 USG/min continuous draw at a 70°F rise and a maximum 10-minute draw of 44 USG, with standby losses of 4,435 BTU/24h. The unit weighs 282 lb (128 kg) and measures 595 x 600 x 1625 mm (23½ x 23⅝ x 64 in). The B2TA must not be common-vented with any other appliance.
Best suited to
- Owners of existing B2TA 19 combis looking up printed ratings and DHW figures
- Small homes wanting space heating and stored DHW in one floor-standing cabinet
- Comparing the earlier B2TA generation against the later B2TB-125
Applicability and support
- Model number
- B2TA 19
- 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 (NG/LPG) | 12 MBH | 3.5 kW, per the technical data manual |
| CSA input, maximum (NG/LPG) | 67 MBH | 20 kW, per the technical data manual |
| Output | ||
| CSA output / DOE heating capacity | 10.9-61 MBH | 3.2-18 kW, based on 140°F / 120°F supply/return |
| Net AHRI rating | 53 MBH | 15.5 kW; based on piping and pick-up allowance of 1.15. |
| Efficiency | ||
| Efficiency (AFUE) | 93.3 % | 93.3% AFUE on both B2TA models per the technical data manual. |
| Domestic hot water | ||
| Integrated DHW tank | 26.5 USG (100 L) | Stainless steel tank; 150 psig maximum allowable potable-water pressure. |
| Continuous DHW draw at 70°F rise | 1.8 USG/min | Based on a 70°F (21K) rise, 50°F to 120°F, per the technical data manual. |
| Maximum DHW draw over 10 minutes | 44 USG | Based on a 70°F (21K) rise. |
| DHW standby loss | 4,435 BTU/24h | 184 BTU/h, 0.8°F/h at 68°F room and 149°F DHW. |
| Domestic hot water | Combi: space heating and DHW with an integrated storage tank | |
| Physical and connections | ||
| Weight | 282 lb | 128 kg |
| Width | 600 mm | |
| Depth | 595 mm | |
| Height | 1,625 mm | 64 in; add 40 mm with the optional seismic bracket kit. |
| Operating limits and other | ||
| Fuel | Natural gas or liquid propane gas | |
| Boiler water content | 0.87 USG | 3.27 L |
| Maximum operating pressure | 45 psig | At 210°F (99°C); 3 bar. |
Manuals
- Technical Data Manual — Vitodens 222-F B2TA Series 19 and 35, doc 5683 719 - 095683 719 - 09 · 2016-12
- Installation Instructions — Vitodens 222-F B2TA, rev 1111 · 2016-12
- Service Instructions — Vitodens 222-F B2TA, rev 1515 · 2016-12
Alerts documented for this model
None documented yet.
Frequently asked questions
What is the input range of the B2TA 19?
12-67 MBH (3.5-20 kW) on natural gas or liquid propane, with 10.9-61 MBH output, a 53 MBH Net AHRI rating and 93.3% AFUE.
How much hot water does the B2TA 19 deliver?
Its integrated 26.5 USG (100 L) tank supports a 1.8 USG/min continuous draw and a 44 USG maximum 10-minute draw at a 70°F rise, per the technical data manual.
Can the B2TA 19 be common-vented?
No. The technical data manual states the Vitodens 222-F B2TA must not be common-vented with any other appliance.
Questions about the Viessmann Vitodens 222-F B2TA 19?
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
- Technical Data Manual — Vitodens 222-F B2TA Series 19 and 35, doc 5683 719 - 09 · 5683 719 - 09 · accessed September 9, 2026
- Viessmann Canada — Historic manuals · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.