IBC Technologies · HC Series (discontinued)
IBC HC 33-160
The IBC HC 33-160 is the largest HC Series heating boiler: 33–160 MBH input, 30.4–140 MBH output at 94% AFUE, a 164 W full-fire draw and the November 2019 gasket service notice on units built July 2014–November 2016.
Key figures
- Max input
- 160 MBH
- Max CSA output
- 140 MBH
- AFUE
- 94 %
- Min input
- 33 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
IBC HC 33-160 in practice
The HC 33-160 was the top size of IBC's discontinued HC heating line, covering 33–160 MBH CSA input (9.7–46.9 kW) for 30.4–140 MBH output (8.9–41.0 kW) at 94% AFUE. It is heating-only: the specification table lists the 43.5 psig space-heating coil and 50–194°F water temperatures, with a 30 psig relief valve supplied.
At full fire it draws 164 W with the internal pump — the highest figure in the HC range — and weighs 96 lb (44 kg) with 0.5 USG (1.9 L) of vessel water. Maximum boiler flow is 11 USgpm and the minimum is 3 USgpm, with gas supply at 5–14" w.c. and a 12,000 ft altitude rating.
The 33-160 is covered by HC I&O manual 120-185-A-R10. IBC's November 2019 service notice applies to this model: it covers a heat-exchanger gasket upgrade for HC 33-160 and DC 33-160 units built July 2014–November 2016, so owners should check the serial range with a licensed contractor.
Best suited to
- Owners of an HC 33-160 checking the gasket service notice and serial range
- Larger homes where the 140 MBH output matches the heat loss
- Technicians servicing the largest HC boiler from manual 120-185-A-R10
Applicability and support
- Model number
- HC 33-160
- 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 | 33 MBH | 9.7 kW |
| Input, maximum | 160 MBH | 46.9 kW |
| Output | ||
| CSA output, minimum | 30.4 MBH | 8.9 kW |
| CSA output, maximum | 140 MBH | 41.0 kW |
| Efficiency | ||
| Efficiency (AFUE) | 94 % | Per the HC specification table. |
| Domestic hot water | ||
| Domestic hot water | Heating-only boiler; no DHW coil | |
| 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) | 96 lb | 44 kg |
| Pressure vessel water content | 0.5 USG / 1.9 L | |
| Electrical | ||
| Power use at full fire (internal pump) | 164 W | 120 V / 60 Hz. |
| Operating limits and other | ||
| Maximum boiler flow rate | 11 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. |
| Max. operating pressure, space-heating coil | 43.5 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
Is there a service notice for the HC 33-160?
Yes. IBC's November 2019 notice covers a heat-exchanger gasket upgrade for HC 33-160 and DC 33-160 units built July 2014–November 2016. Owners should check the serial range with a licensed contractor.
Does the HC 33-160 make domestic hot water?
No. It is a heating-only boiler; the DC 33-160 was the combi version.
Which manual covers the HC 33-160?
HC I&O manual 120-185-A-R10 lists the HC 33-160 among the models it covers.
Questions about the IBC HC 33-160?
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 — HC series specification table · accessed September 9, 2026
- IBC urgent product service notification — HC 33-160 / DC 33-160 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.