Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Triangle Tube · Series
The Challenger was Triangle Tube's earlier condensing boiler family — a condensing design despite the common assumption otherwise — sold as solos (submittals CC85, CC105, CC125, CC150) for use with an indirect tank and as 'Two in One' combis (CC85, CC105, CC125). Its pages were archived in 2019 and gone from the site years before the November 3, 2025 cessation, so only archived literature documents it.
Series facts
The Challenger Solo used what the archived page calls a unique insert cast heat exchanger — light-weight aluminum heat transfer with copper waterways — in a condensing design: Triangle Tube's own literature states that 'the condensing heat exchanger in the Challenger converts the latent heat in flue gas into usable energy.' The 2019 comparison table rated the solo models at 94% AFUE (CC85 and CC105), 95% (CC125) and 92.3% (CC150), with ASME-stamped heat exchangers, SCAQMD low-NOx certification and twin-pipe or concentric venting. Domestic hot water came from an indirect tank such as the Smart line, since the solos are heating-only.
The Challenger Combi ('Two in One') produced domestic hot water directly in its heat exchanger so the boiler could condense in DHW mode, with a published trio of sizes CC85/CC105/CC125 spanning 84 to 124 MBH. Challenger pages 404 on the live site — the Wayback captures date to 2019 — and the series sat in the site's 'Discontinued Product Literature' area, so the Challenger long predates the November 3, 2025 cessation. Challenger models are not named in the February 2025 recall.
Highlights
Models
One canonical page per model with input, output and efficiency kept separate.
Triangle Tube
The Challenger CC85 Solo is the smallest Challenger heating-only boiler, firing 23 to 84 MBH at 94% AFUE with a 3.7:1 turndown — a condensing solo for use with an indirect tank, discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC105 Solo fires 29 to 106 MBH at 94% AFUE with a 94 MBH DOE capacity — the mid-size Challenger heating-only boiler, confirmed by its CC105 submittal. Discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC125 Solo fires 33 to 125 MBH at 95% AFUE with a 111 MBH DOE capacity — the second-largest Challenger heating-only boiler, appearing as 'Challenger 125Hs' in the archived comparison table. Discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC150 Solo is the largest Challenger heating-only boiler: 33 to 145 MBH of input with a 129 MBH DOE capacity, rated 92.3% AFUE in the 2019 comparison table. Discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC85 Combi is the smallest 'Two in One' Challenger combi, named in official manuals and parts lists as the bottom of a three-size combi family spanning 84 to 124 MBH. Its individual ratings were not captured in the archived documents. Discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC105 Combi is the mid-size 'Two in One' combi: 29 to 106 MBH at 94% AFUE with 2.5 GPM of DHW at a 70°F rise, condensing in both heating and hot-water modes. Discontinued years before the November 3, 2025 cessation.
Triangle Tube
The Challenger CC125 Combi is the largest 'Two in One' combi with a published row: 20 to 125 MBH at 95% AFUE with a 6.3:1 turndown and 3.0 GPM of DHW at a 70°F rise. Discontinued years before the November 3, 2025 cessation.
| Specification | Triangle Tube Challenger CC85 Solo | Triangle Tube Challenger CC105 Solo | Triangle Tube Challenger CC125 Solo | Triangle Tube Challenger CC150 Solo | Triangle Tube Challenger CC85 Combi | Triangle Tube Challenger CC105 Combi | Triangle Tube Challenger CC125 Combi |
|---|---|---|---|---|---|---|---|
| Heating input, minimum | 23 MBH | 29 MBH | 33 MBH | 33 MBH | — | 29 MBH | 20 MBH |
| Heating input, maximum | 84 MBH | 106 MBH | 125 MBH | 145 MBH | — | 106 MBH | 125 MBH |
| output-max | — | — | — | — | — | — | — |
| Efficiency (AFUE) | 94 % | 94 % | 95 % | 92.3 % | 94 % | 94 % | 95 % |
| Turndown ratio | 3.7:1 | 3.7:1 | 6.3:1 | 4.4:1 | — | 4.08:1 | 6.3:1 |
| vent-max-3 | — | — | — | — | — | — | — |
| vent-max-2 | — | — | — | — | — | — | — |
| weight | — | — | — | — | — | — | — |
Read the full comparison: Triangle Tube Challenger CC85 Solo vs CC105 Combi →
Read the full comparison: Triangle Tube Challenger CC105 Combi vs Solo →
Read the full comparison: Triangle Tube Challenger CC105 Solo vs CC125 Combi →
Read the full comparison: Triangle Tube Challenger CC125 Combi vs Solo →
Error codes and alerts
No alerts documented for this series yet.
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 Triangle Tube boilers
Yes. Triangle Tube's Challenger literature states the condensing heat exchanger converts latent heat in the flue gas into usable energy, and the product pages advertise condensing efficiency in both space-heating and DHW modes on the combi. The 'non-condensing' label sometimes attached to the Challenger is not supported by the official literature.
The solo line was submittalled as CC85, CC105, CC125 and CC150, rated 84, 106, 125 and 145 MBH maximum input on the 2019 comparison table. The combi line was CC85, CC105 and CC125 — the 2013 combi literature describes three sizes spanning 84 to 124 MBH, with a CC125H also named in one official manual title.
Challenger pages 404 on the live triangletube.com site and exist only through Wayback captures from 2019, but large numbers of units remain installed. Boilers.ca documents the series from the archived official pages and official manuals so owners and technicians can still identify models, ratings and manuals.
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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.