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Viessmann · Vitogas 050 (ECD / ECV / RS)

Viessmann Vitogas 050 ECV-200

The Vitogas 050 ECV-200 is the largest ECV boiler: 200 MBH input (59 kW), 168 MBH output and 83.1% AFUE with a 3 in. power-vent collar.

DiscontinuedHistorically in Canada
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Key figures

Max input
—
Max CSA output
—
AFUE
83.1 %
Min input
—
Natural gasPropaneHeating-onlyresidentialcommercial

Input is gas energy consumed; output is heat delivered. Never size from input alone.

Viessmann Vitogas 050 ECV-200 in practice

The ECV-200 tops the ECV range at 200 MBH (59 kW) input and 168 MBH (49 kW) output at 83.1% AFUE. It shares the six-section, five-burner chassis with the ECV-180, including the 7.1 USG water content and 430 lb (195 kg) weight.

The 3 in. vent collar with a 20 ft maximum equivalent vent run makes it the power-vent alternative to the chimney-vented ECD-200, whose printed output is slightly lower at 166 MBH and whose AFUE prints 83.0%.

Best suited to

  • Existing ECV-200 installations needing printed ratings
  • The largest ECV loads at 200 MBH input
  • Comparing the ECV and ECD top sizes

Applicability and support

Model number
ECV-200
Canadian availability
historical
Production status
discontinued
ROMA supplies
Confirmed at consultation
ROMA services
Confirmed at consultation
Warranty
Not verified

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.

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Specifications

Published specifications

Values as published by Viessmann. Units are shown with every value; notes flag conflicting sources or missing figures.

Viessmann Vitogas 050 ECV-200 specifications
SpecificationValueNote
Input
CSA input (natural gas)200 MBH59 kW, per the technical data manual
Output
CSA output / DOE output168 MBH49 kW
Efficiency
Efficiency (AFUE)83.1 %Printed as 83.1% AFUE on all eight ECV sizes.
Venting and air
Vent pipe collar3 inMaximum equivalent vent run 20 ft (6 m) with 3 in. vent pipe.
Physical and connections
Weight (with insulation, burners and packaging)430 lb195 kg
Overall width635 mmPrinted as 25 in
Overall depth502 mm19¾ in
Overall height1,030 mmPrinted as 41½ in
Operating limits and other
FuelNatural gas or propane3.5 in. w.c. manifold pressure NG; 10 in. w.c. propane.
Cast iron sections65 burners.
Boiler water content7.1 USGPer the technical data manual.
Maximum operating pressure50 psig345 kPa.
Boiler supply / return1¼ in. male threadGas supply ½ in. male thread.

Manuals

Alerts documented for this model

None documented yet.

Services

Related parts & service

Frequently asked questions

What is the ECV-200 rated at?

200 MBH (59 kW) input, 168 MBH (49 kW) output and 83.1% AFUE, with six cast-iron sections and five burners.

How does the ECV-200 differ from the ECD-200?

The ECV prints 168 MBH output and 83.1% AFUE with a 3 in. power-vent collar at 430 lb; the ECD prints 166 MBH and 83.0% with a 7 in. chimney vent collar at 423 lb.

Is the ECV-200 still sold?

No. The Vitogas 050 line is discontinued and documented under Viessmann Canada's historic manuals.

Questions about the Viessmann Vitogas 050 ECV-200?

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.

Call 778-909-5731Request service

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Sources and verification

Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.

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