Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Both sizes sit on the same ClearFire-W platform. The CFW 2400 is the largest ClearFire-W size at 244 gal water capacity, with the same 10 in w.c. minimum gas pressure and 125 psig MAWP as the 2000.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Cleaver-Brooks ClearFire-W CFW 2000 | Cleaver-Brooks ClearFire-W CFW 2400 |
|---|---|---|
| Efficiency (manual) | 88 % | 88 % |
| Water content | 211 gal | 244 gal |
| Minimum gas pressure at gas train connection | 10 in w.c. | 10 in w.c. |
| MAWP | 125 psig | 125 psig |
The CFW 2000 carries 88% efficiency and the CFW 2400 88%. Both sizes sit on the same ClearFire-W platform. The CFW 2400 is the largest ClearFire-W size at 244 gal water capacity, with the same 10 in w.c. minimum gas pressure and 125 psig MAWP as the 2000.
Water content moves from 211 gal to 244 gal, which changes the system volume and buffer behaviour. Pressure rating: 125 on the smaller unit against 125 on the larger.
Both models are documented in the same official Cleaver-Brooks material, so the choice is a load and plant-layout decision: size to the calculated demand, then verify connections, venting and weight in the family document for the exact model.
Cleaver-Brooks
The Cleaver-Brooks ClearFire-W CFW 2000 is a compact vertically fired firetube hydronic boiler documented by the official Model CFW O&M manual (750-296), with 211 gal water capacity and a 10 in w.c. minimum gas pressure.
Cleaver-Brooks
The Cleaver-Brooks ClearFire-W CFW 2400 is a compact vertically fired firetube hydronic boiler documented by the official Model CFW O&M manual (750-296), with 244 gal water capacity and a 10 in w.c. minimum gas pressure.
The CFW 2400 with 244 gal water capacity, per Table 4-1 of the official Model CFW O&M manual.
The CB Falcon hydronic boiler control with a touchscreen interface and Modbus communication, per the manual's section 4.4.
A consultation includes a heat-loss review so the size is right the first time.
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 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.