Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
Ideal Commodore Floor CB1250F and Ideal Commodore Floor CB3000F are two condensing boilers from the Ideal Heating Commodore Floor line. The Ideal Commodore Floor CB1250F is documented at 156–1,200 MBH input, 1,200 MBH output and 97% thermal efficiency, while the Ideal Commodore Floor CB3000F is documented at 420–3,000 MBH input, 2,858 MBH output and 99% thermal efficiency. Ideal Commodore Floor CB3000F lists 1,800 MBH more input than Ideal Commodore Floor CB1250F (3,000 MBH against 1,200 MBH). Ideal Commodore Floor CB3000F lists 2 percentage points more thermal efficiency than Ideal Commodore Floor CB1250F (99% against 97%). Ideal Commodore Floor CB3000F lists 992 lb more shipping weight than Ideal Commodore Floor CB1250F (1,984 lb against 992 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | Ideal Commodore Floor CB1250F | Ideal Commodore Floor CB3000F |
|---|---|---|
| Input, minimum | 156 MBH | 420 MBH |
| Input, maximum | 1,200 MBH | 3,000 MBH |
| Thermal efficiency | 97 % | 99 % |
| Combustion efficiency | 96.6 % | 97.5 % |
| Turndown ratio | 8:1 | 7.2:1 |
| Domestic hot water | Heating-only commercial boiler; DHW via a separate water heater or tank | Heating-only commercial boiler; DHW via a separate water heater or tank |
| Weight | 992 lb | 1,984 lb |
| Height | 47 in | 59 in |
| Width | 55 in | 79 in |
| Depth | 34 in | 46 in |
| Vent length | 150 ft | 150 ft |
| Supply / return water connections | 2-1/2 in Victaulic | 4 in Victaulic |
| Gas connection (NPT) | 2 in | 2 in |
| Output | 1,200 MBH | 2,858 MBH |
| Net AHRI rating | 1,043 MBH | 2,485 MBH |
| Rated volume | 11 gal | 34.6 gal |
| Flue connection, vent / air | 8 in / 8 in | 10 in / 12 in |
Published ratings: the Ideal Commodore Floor CB1250F is rated 156–1,200 MBH input, 1,200 MBH output and 97% thermal efficiency; the Ideal Commodore Floor CB3000F is rated 420–3,000 MBH input, 2,858 MBH output and 99% thermal efficiency. Ideal Commodore Floor CB3000F lists 1,800 MBH more input than Ideal Commodore Floor CB1250F (3,000 MBH against 1,200 MBH). Ideal Commodore Floor CB3000F lists 2 percentage points more thermal efficiency than Ideal Commodore Floor CB1250F (99% against 97%).
Ideal Commodore Floor CB3000F lists 992 lb more shipping weight than Ideal Commodore Floor CB1250F (1,984 lb against 992 lb). The turndown differs: the Ideal Commodore Floor CB1250F lists 8:1, while the Ideal Commodore Floor CB3000F lists 7.2:1. The height differs: the Ideal Commodore Floor CB1250F lists 47 in, while the Ideal Commodore Floor CB3000F lists 59 in. The width differs: the Ideal Commodore Floor CB1250F lists 55 in, while the Ideal Commodore Floor CB3000F lists 79 in.
Both records print the same domestic-hot-water arrangement (Heating-only commercial boiler; DHW via a separate water heater or tank), vent length (150 ft) and gas connection (2 in), per the cited sources.
Ideal Heating
The Ideal Commodore Floor CB1250F is the smallest Commodore Floor model: 156 to 1,200 MBH input, 97.0% printed thermal efficiency, 8:1 turndown and a 992 lb floor-standing commercial chassis.
Ideal Heating
The Ideal Commodore Floor CB3000F is a large commercial condensing boiler: 420 to 3,000 MBH input, 99.0% printed thermal efficiency, 4-inch Victaulic water connections and 10-inch/12-inch venting in a 1,984 lb chassis.
The Ideal Commodore Floor CB3000F lists 3,000 MBH, against 1,200 MBH on the Ideal Commodore Floor CB1250F, per the cited documentation.
The Ideal Commodore Floor CB3000F carries the higher published thermal efficiency at 99%, against 97%.
It ships at 1,984 lb against 992 lb for the Ideal Commodore Floor CB1250F, per the cited sources.
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.