Ideal Heating · Commodore Wall
Ideal Commodore Wall CB500W
The Ideal Commodore Wall CB500W is the largest Commodore Wall model: 83 to 500 MBH input, 95.1% printed thermal efficiency, a 413 MBH net AHRI rating and 6-inch venting for commercial plants.
Key figures
- Max input
- 500 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- 83 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Ideal Commodore Wall CB500W in practice
The CB500W tops the Commodore Wall line at 500 MBH maximum input, with an 83 MBH minimum and a 6:1 turndown, producing 475 MBH output and a 413 MBH net AHRI rating. The printed efficiency rows are 95.1% thermal and 94.5% combustion — the latter the lowest in the series, reflecting the trade-off at the top of the range.
Like the CB470W it uses 6-inch vent/air connections with a 200-foot published vent length, in the same 17.5 x 33.33 x 21.2 inch, 198 lb chassis with 2.7 gallons rated volume. Modbus is standard, BACnet optional, and the unit is field-convertible between natural gas and propane.
The CB500W anchors the largest Commodore Wall Cascade racks, from the RS1000BL2D3 (two boilers, 1,000 MBH) to the RS3000BL6D4 (six boilers, 3,000 MBH total input). Cascade capacity reaches 16 boilers in field arrangements. No explicit Canadian sales statement was found on the official pages checked on 2026-09-09; the Exalt and Gallant submittals list ANSI Z21.13 and CSA 4.9 compliance, so Boilers.ca records canadianStatus as unknown.
Best suited to
- Commercial plants needing up to 500 MBH per wall-hung boiler
- Commodore Wall Cascade racks up to 3,000 MBH total input
- Projects standardizing on the largest Commodore Wall size
Applicability and support
- Model number
- CB500W
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Series terms
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 Ideal Heating. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 83 MBH | Per the official model table. |
| Input, maximum | 500 MBH | Per the official model table. |
| Output | ||
| Output | 475 MBH | Heating capacity under 300 MBH input; gross output above 300 MBH, per the page footnote. |
| Net AHRI rating | 413 MBH | Per the official model table. |
| Efficiency | ||
| Thermal efficiency | 95.1 % | 95.1% thermal efficiency and 94.5% combustion efficiency printed for the CB500W. |
| Domestic hot water | ||
| Domestic hot water | Heating-only commercial boiler; DHW via a separate water heater or tank | |
| Venting and air | ||
| Flue connection, vent / air | 6 in | |
| Vent length | 200 ft | Per the official model table. |
| Physical and connections | ||
| Weight | 198 lb | |
| Width | 17.5 in | |
| Height | 33.33 in | |
| Depth | 21.2 in | |
| Operating limits and other | ||
| Turndown ratio | 6:1 | Per the official model table. |
| Rated volume | 2.7 gal | Per the official model table. |
| Supply / return water connections (MNPT) | 1-1/2 in | Per the official model table. |
| Gas connection (NPT) | 1 in | |
Manuals
Alerts documented for this model
Frequently asked questions
What is the input range of the Commodore Wall CB500W?
83 to 500 MBH input with a 6:1 turndown, 475 MBH output and a 413 MBH net AHRI rating, per the official model table.
What efficiency does the CB500W print?
95.1% thermal efficiency and 94.5% combustion efficiency — the lowest combustion figure in the Commodore Wall line, printed as such.
Which cascade racks use the CB500W?
Racks including the RS1000BL2D3 (two boilers, 1,000 MBH), RS1500BL3D3 (three boilers, 1,500 MBH) and RS3000BL6D4 (six boilers, 3,000 MBH).
Questions about the Ideal Commodore Wall CB500W?
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.
Sources and verification
- Ideal Heating NA — Commodore Wall Mount product page and model table · accessed September 9, 2026
- Ideal Heating NA — Commodore Wall CB submittal sheet (2025-122, rev. 9.8.25) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.