Triangle Tube Challenger CC105 Solo
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.
Key figures
- Max input
- 106 MBH
- Max CSA output
- —
- AFUE
- 94 %
- Min input
- 29 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Triangle Tube Challenger CC105 Solo in practice
The CC105 Solo sits in the middle of the Challenger solo range at 29 to 106 MBH of input, rated 94% AFUE with a 3.7:1 turndown, 94 MBH DOE capacity and an 82 MBH net AHRI rating. Its 2019-era comparison row is labelled 'Challenger 105s' and the CC105 submittal confirms the model code.
Heating-only like every Challenger solo, the CC105 was installed with an indirect tank for domestic hot water, vented in twin-pipe PVC, CPVC, polypropylene or AL29-4C, or concentrically. Owners of the installed base can still pull its ratings from the archived comparison table and its procedures from the official Solo manuals.
Best suited to
- Owners identifying a CC105-prefixed Challenger solo from its rating plate
- Homes whose original heat-loss load matched the 106 MBH ceiling
- Service work pairing the Solo installation manual with the 2019-era comparison rows
Applicability and support
- Model number
- CC105
- 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 | 29 MBH | The comparison row prints 29 to 106 MBH for the 'Challenger 105s'. |
| Heating input, maximum | 106 MBH | The comparison row prints 29 to 106 MBH for the 'Challenger 105s'. |
| Output | ||
| DOE heating capacity | 94 MBH | Per the product-page spec table. |
| Net AHRI rating | 82 MBH | Per the product-page spec table. |
| Efficiency | ||
| Efficiency (AFUE) | 94 % | 94% AFUE on the 105s row of the 2019 product-comparison table. |
| Operating limits and other | ||
| Turndown ratio | 3.7:1 | |
| 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 input range of the Challenger CC105 Solo?
The 2019 comparison table lists 29 to 106 MBH for the 'Challenger 105s' row, at 94% AFUE with a 3.7:1 turndown, 94 MBH DOE capacity and an 82 MBH net AHRI rating.
Was the Challenger CC105 Solo a condensing boiler?
Yes. Triangle Tube's Challenger literature describes the condensing heat exchanger converting latent flue-gas heat into usable energy, and the solo pages advertised condensing efficiency with ASME-stamped heat exchangers.
Questions about the Triangle Tube Challenger CC105 Solo?
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 Combi vs SoloComparison
- Triangle Tube Challenger CC105 Solo vs CC125 CombiComparison
- Triangle Tube Challenger CC85 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
- Triangle Tube Challenger CC125 CombiSame series
- Challenger series hub
- Buying guide
Sources and verification
- Challenger Solo Installation Manual (official site file) · accessed September 7, 2026
- Challenger Solo User Guide Manual (2011) · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.