Triangle Tube Challenger CC125 Combi
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.
Key figures
- Max input
- 125 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 20 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Triangle Tube Challenger CC125 Combi in practice
The CC125 combi row of the archived 2019 comparison table is the top of the documented combi range: 20 to 125 MBH of input at 95% AFUE with a 6.3:1 turndown, a 111 MBH DOE capacity, a 97 MBH net AHRI rating and 3.0 GPM of DHW flow at a 70°F rise. Its 20 MBH minimum is lower than the CC125 Solo's 33 MBH, which is what makes its 6.3:1 turndown consistent.
An official manual title also names a CC125H in the combi family, alongside the CC105 and CC125 covered by the Challenger Combi User's Information Manual. The CC125 combi condenses in both space-heating and DHW modes through the 'Two in One' heat exchanger design and long predates the November 3, 2025 cessation.
Best suited to
- Owners identifying a CC125 combi from its rating plate and 2019-era comparison row
- Homes whose load and hot-water draws matched the top Challenger combi package
- Technicians tracing the CC125H variant named in official combi manual titles
Applicability and support
- Model number
- CC125
- 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.
Specifications
Published specifications
Values as published by Triangle Tube. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Heating input, minimum | 20 MBH | The combi comparison row prints a 20 MBH minimum — lower than the CC125 Solo's 33 MBH. |
| Heating input, maximum | 125 MBH | The combi comparison row prints a 20 MBH minimum — lower than the CC125 Solo's 33 MBH. |
| Output | ||
| DOE heating capacity | 111 MBH | Per the product-page spec table. |
| Net AHRI rating | 97 MBH | Per the product-page spec table. |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95% AFUE on the CC125 combi row of the 2019 product-comparison table. |
| Domestic hot water | ||
| DHW output at 70°F rise | 3 GPM | Per the 2019 product-comparison table. |
| Operating limits and other | ||
| Turndown ratio | 6.3:1 | 125 MBH divided by the 20 MBH minimum equals 6.25:1, matching the printed 6.3:1. |
| Fuel | Natural gas or propane | The 2019 comparison table prints NG/LP on every Challenger row. |
Alerts documented for this model
None documented yet.
Frequently asked questions
What is the CC125H mentioned in some Challenger documents?
The Challenger Combi User's Information Manual title covers the CC105, CC125 and CC125H models. The CC125H is named in that official title; the research bundle does not print a separate rating row for it.
How much hot water does the CC125 Combi deliver?
3.0 GPM of DHW flow at a 70°F rise, per the 2019 product-comparison table — the highest published DHW figure of the Challenger combi rows.
Questions about the Triangle Tube Challenger CC125 Combi?
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.
Compare and explore
- Triangle Tube Challenger CC105 Solo vs CC125 CombiComparison
- Triangle Tube Challenger CC125 Combi vs SoloComparison
- Triangle Tube Challenger CC85 SoloSame series
- Triangle Tube Challenger CC105 SoloSame series
- Triangle Tube Challenger CC125 SoloSame series
- Triangle Tube Challenger CC150 SoloSame series
- Triangle Tube Challenger CC85 CombiSame series
- Triangle Tube Challenger CC105 CombiSame series
- Challenger series hub
- Buying guide
Sources and verification
- Challenger Combi User's Information Manual, doc 2010-20 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.