IBC Technologies · DC Series (discontinued)
IBC DC 29-106
The IBC DC 29-106 is a discontinued DC combi rated 28.5–106 MBH input and 26.3–94.3 MBH output at 94% AFUE. Its DC spec-table output-kW cell is printed 8.9–32.3, a figure the HC table prints as 7.7–27.6 for the same range.
Key figures
- Max input
- 106 MBH
- Max CSA output
- 94.3 MBH
- AFUE
- 94 %
- Min input
- 28.5 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
IBC DC 29-106 in practice
The DC 29-106 covers 28.5–106 MBH CSA input (8.4–31.0 kW) for 26.3–94.3 MBH output at 94% AFUE. It was a wall-hung combi with a 43.5 psig space-heating coil and a 150 psig DHW coil, and its maximum DHW flow of 3.3 USgpm sits between the 15-96's 3.0 and the larger models' 4.0 USgpm.
One data point needs care: IBC's DC specification table prints the 29-106 output as 8.9–32.3 kW, the same figure shown in the DC 33-124 column, while the HC specification table prints 7.7–27.6 kW for the same 29-106 output range. Boilers.ca records the DC page as printed and notes the cross-table difference rather than choosing a figure.
The 29-106 weighs 85 lb (39 kg), holds 0.37 USG (1.4 L), draws 128 W at full fire with the internal pump and runs 10 USgpm maximum / 3 USgpm minimum boiler flow. It is covered by DC I&O manual 120-183-A-R9 and vents 120 equivalent feet in 3" or 35 feet in 2" per side.
Best suited to
- Owners identifying a DC 29-106 and its printed ratings
- Homes where roughly 94 MBH output matches the original combi sizing
- Technicians cross-checking the DC and HC specification tables
Applicability and support
- Model number
- DC 29-106
- 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 IBC Technologies. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 28.5 MBH | 8.4 kW |
| Input, maximum | 106 MBH | 31.0 kW |
| Output | ||
| CSA output, minimum | 26.3 MBH | 8.9 kW |
| CSA output, maximum | 94.3 MBH | 8.9 – 32.3 kW as printed on the DC specification table (the same figure appears in the DC 33-124 column); the HC table prints 7.7–27.6 kW for this output range. |
| Efficiency | ||
| Efficiency (AFUE) | 94 % | Per the DC specification table. |
| Domestic hot water | ||
| DHW input | 28.5 – 106 MBH | 8.4 – 31.0 kW |
| Max. DHW flow rate | 3.3 USgpm | |
| Flow to activate DHW | 0.5 USgpm | |
| Domestic hot water | Integrated DHW coil in a combination boiler | |
| Venting and air | ||
| Max. equivalent vent length, 3" | 120 ft | Each side. |
| Max. equivalent vent length, 2" | 35 ft | Each side. |
| Physical and connections | ||
| Weight (empty) | 85 lb | 39 kg |
| Pressure vessel water content | 0.37 USG / 1.4 L | |
| Electrical | ||
| Power use at full fire (internal pump) | 128 W | 120 V / 60 Hz. |
| Operating limits and other | ||
| Maximum boiler flow rate | 10 USgpm | |
| Minimum boiler flow rate | 3 USgpm | |
| Fuel | Natural gas or propane | The DC/HC specification table notes conversion kits must be ordered separately. |
| Gas supply pressure | 5 – 14 in. w.c. | |
| Ambient temperature | 32 – 122 °F | 0 – 50°C. |
| Space-heating water temperature | 50 – 194 °F | 10 – 90°C. |
| Domestic hot water temperature | 104 – 149 °F | 40 – 65°C. |
| Max. operating pressure, space-heating coil | 43.5 psig | DHW coil rated 150 psig; the unit ships with a 30 psig pressure relief valve. |
| Altitude rating | 12,000 ft | |
Manuals
Alerts documented for this model
Frequently asked questions
Why does the DC 29-106 output show two different kW figures?
IBC's DC specification table prints 8.9–32.3 kW (the same as its DC 33-124 column), while the HC table prints 7.7–27.6 kW for the same output range. Boilers.ca notes both and does not substitute one for the other.
Which manual covers the DC 29-106?
I&O manual 120-183-A-R9 lists the DC 29-106 among the models it covers.
What is the DC 29-106's DHW flow?
A maximum of 3.3 USgpm, with activation at 0.5 USgpm, per the DC specification table.
Questions about the IBC DC 29-106?
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
- IBC Technical Information Portal — DC series specification table · accessed September 9, 2026
- IBC Technical Information Portal — HC series specification table (cross-check) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.