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Viessmann · Vitogas 050 (ECD / ECV / RS)

Viessmann Vitogas 050 ECV-180

The Vitogas 050 ECV-180 opens the largest ECV chassis: 180 MBH input (53 kW), 151 MBH output and 83.1% AFUE with six sections.

DiscontinuedHistorically in Canada
Service this modelEstimate a replacement

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-180 in practice

The ECV-180 is rated 180 MBH (53 kW) input and 151 MBH (44 kW) output at 83.1% AFUE. It is the first ECV size with six cast-iron sections and five burners, holding 7.1 USG of boiler water.

Weight steps to 430 lb (195 kg) and the cabinet widens to 635 mm (25 in) at 502 mm depth and 1030 mm height, with the range's 3 in. vent collar and 50 psig maximum operating pressure.

Best suited to

  • Existing ECV-180 installations needing printed ratings
  • Larger residential loads between 155 and 200 MBH
  • Documentation for the six-section ECV chassis

Applicability and support

Model number
ECV-180
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.

See all service areas

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-180 specifications
SpecificationValueNote
Input
CSA input (natural gas)180 MBH53 kW, per the technical data manual
Output
CSA output / DOE output151 MBH44 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-180 rated at?

180 MBH (53 kW) input, 151 MBH (44 kW) output and 83.1% AFUE, with six cast-iron sections and five burners.

How wide is the ECV-180?

635 mm (25 in) overall, 502 mm deep and 1030 mm high, at 430 lb (195 kg).

Does the ECV-180 share a chassis with the ECV-200?

Yes — both use the six-section chassis; the ECV-200 differs only in firing rate.

Questions about the Viessmann Vitogas 050 ECV-180?

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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