Weil-McLain · Series
Weil-McLain WM97+
The WM97+ was Weil-McLain's earlier wall-mount condensing boiler series, discontinued in Canada and listed on the CA Discontinued menu in three sizes — 70, 110 and 155 MBH — rated 95.2% AFUE.
Series facts
- Type
- condensing
- Efficiency
- 95.2% AFUE
- Fuel
- Natural gas or propane; the CA product page lists propane with a conversion kit needed.
- Venting
- Unknown
- Models documented
- 0
- Warranty
- Not verified
CA discontinued page lists 95.2% AFUE for the WM97+ line.
About the WM97+
The WM97+ is listed on weil-mclain.ca's Discontinued menu as one of the residential gas boilers Weil-McLain Canada no longer sells. The discontinued product page carries three input sizes — 70, 110 and 155 MBH, with the 70 and 110 noted as including an expansion tank — at 95.2% AFUE and outputs of 65, 101 and 143 MBH.
The WM97+ shares the 550-100-202-era platform generation with the original ECO line, which is also on the CA Discontinued menu. Owners diagnosing WM97+ units should work from generation-specific literature for that platform rather than from the current ECO Tec, Simplicity, Evergreen or Ultra manuals, because those newer Series 2 controls show text faults where the earlier platform carried its own code set.
Highlights
- Wall-mount condensing boiler; three sizes 70/110/155 MBH
- 95.2% AFUE per the CA discontinued page
- 70 and 110 sizes noted as including an expansion tank
- Listed under Discontinued on weil-mclain.ca
- 550-100-202-era platform, alongside the original ECO line
Models
WM97+ models
One canonical page per model with input, output and efficiency kept separate.
Error codes and alerts
WM97+ alerts
No alerts documented for this series yet.
Manuals
Official documents
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.
Services for Weil-McLain boilers
Frequently asked questions
Is the WM97+ available in Canada?
No. Weil-McLain Canada lists the WM97+ under Discontinued on its residential boiler menu, alongside the CGa, CGi, AquaBalance, ECO and EG lines.
Which manual covers the WM97+?
Weil-McLain Canada's WM97+ page does not link a current CA manual; the WM97+ is a 550-100-202-era platform product. Owners should reference generation-specific WM97+ literature for their unit rather than current Series 2 manuals.
What sizes did the WM97+ come in?
Three sizes: 70, 110 and 155 MBH input, with the 70 and 110 noted on the CA page as including an expansion tank, at outputs of 65, 101 and 143 MBH.
Talk to a boiler technician
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
- Weil-McLain Canada — WM97+ (discontinued) · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.