Cleaver-Brooks ClearFire-V 25 HP
The Cleaver-Brooks ClearFire-V 25 HP is a vertical gas-fired steam boiler rated 863 lb/hr steam from and at 212°F and 837 thousand BTU/hr output, with 159 sq ft of fireside heating surface per the official CB-8265 ratings.
Key figures
- Max input
- —
- Max CSA output
- 837,000 BTU/hr
- AFUE
- —
- Min input
- —
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Cleaver-Brooks ClearFire-V 25 HP in practice
The 25 HP model is a size of the ClearFire-V, Cleaver-Brooks' compact vertical gas-fired steam boiler with AluFer tubes. Official drawing CB-8265 prints 863 lb/hr steam from and at 212°F, 837 thousand BTU/hr output, 159 sq ft of fireside heating surface and a natural-gas input of 1,033 cfh at rated capacity, calculated at nominal 81% efficiency for 1,000 BTU gas.
Connections on this size are a 2" steam outlet, a 1" feedwater connection, a 1" gas inlet, a 6 in stack outlet and a 4 in combustion air inlet, with a 335 W single-phase 115 VAC blower. The brochure (CB-8179) describes the line at 9.5–60 boiler horsepower, 150 psig design pressure and 60 psig minimum operating pressure, with low emissions under 20 ppm NOx and less than 10 ppm CO and the Falcon touchscreen control.
Best suited to
- Commercial steam loads near 863 lb/hr from and at 212°F
- Tight boiler rooms where a vertical steam boiler footprint is required
- Plants replacing a ClearFire-V or similar vertical firetube steam boiler
Applicability and support
- Model number
- CFV 25 HP
- Canadian availability
- unknown
- Production status
- unknown
- 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 Cleaver-Brooks. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Natural gas input at rated capacity | 1,033 cfh | Input calculated at nominal 81% efficiency for 1,000 BTU gas content, per note A of CB-8265. |
| Output | ||
| Rated capacity — steam | 863 lb/hr | Pounds per hour from and at 212°F printed in the CFV Dimensions and Ratings (CB-8265). |
| Output | 837,000 BTU/hr | Output 837 thousand BTU/hr printed in CB-8265. |
| Venting and air | ||
| Flue gas connection | 6 in | Stack outside diameter printed in CB-8265. |
| Combustion air option | 4 in | Combustion air inlet printed in CB-8265. |
| Physical and connections | ||
| Fireside heating surface | 159 sq ft | Printed in CB-8265. |
| Design pressure | 150 psig design; 60 psig minimum operating | Printed in the ClearFire-V brochure (CB-8179): 150 psig design pressure and 60 psig minimum operating pressure. |
| Feedwater connection | 1" | Printed in CB-8265. |
| Steam outlet | 2" | Printed in CB-8265. |
| Gas connection | 1" | Gas inlet printed in CB-8265. |
| Electrical | ||
| Blower motor | 335 W, single-phase 115 VAC | Printed in CB-8265; the note directs users above 700 ft altitude to the local Cleaver-Brooks representative for blower verification. |
| Operating limits and other | ||
| Fuel | Natural gas | The ClearFire-V brochure describes a gas-fired premix burner; CB-8265 prints natural-gas inputs. |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the ClearFire-V 25 HP ratings?
Official drawing CB-8265 prints 863 lb/hr steam from and at 212°F and 837 thousand BTU/hr output, with 1,033 cfh natural-gas input at rated capacity.
Is the ClearFire-V a steam or hydronic boiler?
It is a steam boiler — CB-8265 rates it in pounds of steam per hour and prints steam-outlet, feedwater and blowdown connections.
Is the ClearFire-V still catalogued?
Cleaver-Brooks' current condensing-hydronic catalogue lists the ClearFire-CE and SwitchFire; the ClearFire-V is documented from its official archived ratings and brochure, so productStatus is recorded as unknown.
Questions about the Cleaver-Brooks ClearFire-V 25 HP?
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
- Cleaver-Brooks ClearFire-V 9.5 HPSame series
- Cleaver-Brooks ClearFire-V 10 HPSame series
- Cleaver-Brooks ClearFire-V 15 HPSame series
- Cleaver-Brooks ClearFire-V 20 HPSame series
- Cleaver-Brooks ClearFire-V 30 HPSame series
- Cleaver-Brooks ClearFire-V 40 HPSame series
- Cleaver-Brooks ClearFire-V 50 HPSame series
- Cleaver-Brooks ClearFire-V 60 HPSame series
- ClearFire-V series hub
- Buying guide
Sources and verification
- Cleaver-Brooks — official site · accessed September 9, 2026
- Cleaver-Brooks — Model CFV Vertical ClearFire Dimensions and Ratings (CB-8265, 08-2012), archived official copy · accessed September 9, 2026
- Cleaver-Brooks — ClearFire-V High-Efficiency Commercial Steam Boiler brochure (CB-8179), archived official copy · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.