Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Weil-McLain · Series
The ECO Tec is Weil-McLain's stainless-steel firetube condensing boiler line for Canada, in heat-only sizes 80 to 199 MBH and combi sizes 110 to 199 MBH, all rated 95% AFUE with one Series 2 boiler manual covering both variants.
Series facts
95% AFUE across the series per the CA product pages; the boiler manual's AHRI ratings table lists 95.0% AFUE for every size.
Weil-McLain Canada sells the ECO Tec in two menu entries with two URLs — heat-only (80, 110, 150 and 199 MBH) and combi (110, 150 and 199 MBH) — but a single Series 2 boiler manual (550-100-270/0924) covers both variants in one ratings table. The heat exchanger is a stainless steel firetube design, and the CA product pages describe high-grade stainless steel with a colour touchscreen control.
Every ECO Tec size is rated 95% AFUE, and the CA pages list modulation up to 10:1 (8:1 on the 80 size), a built-in ECM circulator and a 3-inch vent connection that also accepts 2" piping through an adapter. All models are Category IV and direct-vented; the manual's ratings table prints water content, DOE heating capacity and net AHRI figures per model, and vent/air runs are allowed to 100 equivalent feet in 2" or 3" pipe, with the 199 size limited to 50 feet in 2".
The combi models add a brazed-plate domestic hot water module and, per the CA page, deliver up to 5.4 GPM of DHW at a 70°F rise — a brochure claim that corresponds to the 199 size. The control shows text fault names on its touchscreen rather than numeric error codes, and Weil-McLain also hosts a Series 2 Advanced Manual for diagnostics.
Highlights
Residential: 12-year heat exchanger / 2-year parts (5-year parts when registered); commercial: 10-year heat exchanger / 1-year parts, per the CA product page.
Models
One canonical page per model with input, output and efficiency kept separate.
Weil-McLain
The ECO Tec 80-H is the smallest ECO Tec heat-only boiler: 80 MBH maximum input at 95.0% AFUE, modulating to 8:1 turndown and weighing 104 lb in the shared 19 x 20 x 33 inch cabinet.
Weil-McLain
The ECO Tec 110-H steps the heat-only line to 110 MBH input with 100 MBH DOE heating capacity at 95.0% AFUE, modulating 10:1 in the same 104 lb, 19 x 20 x 33 inch cabinet as the 80-H.
Weil-McLain
The ECO Tec 150-H is the first ECO Tec size to grow the heat exchanger: 150 MBH input, 139 MBH DOE heating capacity and a 121 MBH net AHRI rating at 95.0% AFUE, in a 117 lb unit with 3.1 gallons of water content.
Weil-McLain
The ECO Tec 199-H tops the heat-only line at 199 MBH input with 184 MBH DOE heating capacity and a 160 MBH net AHRI rating at 95.0% AFUE, weighing 127 lb with 3.8 gallons of water content.
Weil-McLain
The ECO Tec 110-C is the entry combi of the Canadian ECO Tec line: the 110 MBH heat-only platform plus an integrated brazed plate DHW module for on-demand hot water, rated 95.0% AFUE at 114 lb.
Weil-McLain
The ECO Tec 150-C is the mid-size ECO Tec combi: 150 MBH of heating input plus an integrated brazed plate DHW module at 95.0% AFUE, weighing 126 lb with 3.1 gallons of boiler water.
Weil-McLain
The ECO Tec 199-C is the flagship ECO Tec combi: 199 MBH input with the line's strongest DHW delivery — the CA page's "up to 5.4 GPM at 70°F rise" claim applies to this size — at 95.0% AFUE in a 135 lb unit.
| Specification | Weil-McLain ECO Tec 80-H | Weil-McLain ECO Tec 110-H | Weil-McLain ECO Tec 150-H | Weil-McLain ECO Tec 199-H | Weil-McLain ECO Tec 110-C | Weil-McLain ECO Tec 150-C | Weil-McLain ECO Tec 199-C |
|---|---|---|---|---|---|---|---|
| input-min | — | — | — | — | — | — | — |
| Input, maximum | 80 MBH | 110 MBH | 150 MBH | 199 MBH | 110 MBH | 150 MBH | 199 MBH |
| DOE heating capacity | 74 MBH | 100 MBH | 139 MBH | 184 MBH | 100 MBH | 139 MBH | 184 MBH |
| Efficiency (AFUE) | 95 % | 95 % | 95 % | 95 % | 95 % | 95 % | 95 % |
| Turndown | 8:1 | 10:1 | 10:1 | 10:1 | 10:1 | 10:1 | 10:1 |
| vent-max-3 | — | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — | — |
| Weight | 104 lb | 104 lb | 117 lb | 127 lb | 114 lb | 126 lb | 135 lb |
Read the full comparison: Weil-McLain ECO Tec 80-H vs 110-H →
Read the full comparison: Weil-McLain ECO Tec 110-H vs 150-H →
Read the full comparison: Weil-McLain ECO Tec 150-H vs 199-H →
Read the full comparison: Weil-McLain ECO Tec 110-C vs 150-C →
Read the full comparison: Weil-McLain ECO Tec 150-C vs 199-C →
Read the full comparison: Weil-McLain ECO Tec 150-H vs 150-C →
Read the full comparison: NTI Trinity TFTN150 vs Weil-McLain ECO Tec 150-H →
Read the full comparison: NTI Trinity TRX120 vs Weil-McLain ECO Tec 110-H →
Read the full comparison: Weil-McLain ECO Tec 150-H vs Lochinvar Knight WHB155 →
Read the full comparison: Burnham Alpine ALP150B vs Weil-McLain ECO Tec 150-H →
Error codes and alerts
Manuals
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
The heat-only and combi variants share one platform and one Series 2 boiler manual; the combi models add a brazed-plate domestic hot water module so they can produce DHW on demand. Both are sold on weil-mclain.ca as separate menu entries.
It is a Category IV direct-vent boiler: 2" or 3" PVC, CPVC, polypropylene or AL29-4C stainless steel, up to 100 equivalent feet in either size (the 199 is limited to 50 feet in 2"). Canadian installations need a ULC S636-compliant vent kit per CAN/CSA B149.1 or B149.2.
The ECO Tec's colour touchscreen shows text fault names and messages, not numeric error codes. Weil-McLain documents the fault list in the Series 2 boiler manual and the Advanced Manual.
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
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.