IBC Technologies · DC Series (discontinued)
IBC DC 15-96
The IBC DC 15-96 is the highest-efficiency model in the discontinued DC combi line: 96% AFUE, 15–96 MBH input, 14.5–85.9 MBH output, a 3.0 USgpm maximum DHW flow and 0.5 USG of vessel water.
Key figures
- Max input
- 96 MBH
- Max CSA output
- 85.9 MBH
- AFUE
- 96 %
- Min input
- 15 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
IBC DC 15-96 in practice
The DC 15-96 is the most efficient model in IBC's DC Series at 96% AFUE, with 15–96 MBH CSA input (4.4–28.1 kW) and 14.5–85.9 MBH output (4.3–25.2 kW). It is a wall-hung combi with separate space-heating (43.5 psig) and DHW (150 psig) coils and a supplied 30 psig relief valve.
It shares the line's DHW behaviour: activation at 0.5 USgpm, a maximum DHW flow of 3.0 USgpm and DHW temperatures of 104–149°F, against space-heating water of 50–194°F. The vessel holds 0.5 USG (1.9 L) — more than the smaller DC sizes — and the unit weighs 105 lb (48 kg) with a 128 W full-fire draw including the internal pump.
The 15-96 is covered by DC I&O manual 120-183-A-R11 (April 2020). It vents 120 equivalent feet in 3" or 35 feet in 2" per side, is approved to 12,000 ft altitude, and remains documented on IBC's Technical Information Portal even though the line is discontinued.
Best suited to
- Owners of a DC 15-96 confirming the line's 96% AFUE rating
- Homes where the 85.9 MBH output covers the load with the line's best efficiency
- Technicians servicing a DC combi against manual 120-183-A-R11
Applicability and support
- Model number
- DC 15-96
- 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 | 15 MBH | 4.4 kW |
| Input, maximum | 96 MBH | 28.1 kW |
| Output | ||
| CSA output, minimum | 14.5 MBH | 4.3 kW |
| CSA output, maximum | 85.9 MBH | 25.2 kW |
| Efficiency | ||
| Efficiency (AFUE) | 96 % | Per the DC specification table. |
| Domestic hot water | ||
| DHW input | 15 – 96 MBH | 4.4 – 28.1 kW |
| Max. DHW flow rate | 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) | 105 lb | 48 kg |
| Pressure vessel water content | 0.5 USG / 1.9 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 | 2 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
- Installation & Operating Manual — DC 15-95 / 15-96 / 20-125 / 33-160, doc 120-183-A-R11120-183-A-R11 · 2020-04
Alerts documented for this model
Frequently asked questions
Is the DC 15-96 the most efficient DC model?
Yes. IBC's DC specification table rates the 15-96 at 96% AFUE, the highest in the line; the 15-95 and 20-125 are 95% and the remaining sizes are 94%.
How much water does the DC 15-96 vessel hold?
0.5 USG (1.9 L), per the DC specification table.
Is the DC 15-96 discontinued?
Yes. The DC Series is discontinued; IBC keeps the spec table and manuals on its Technical Information Portal.
Questions about the IBC DC 15-96?
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 — DC guides and manuals · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.