Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
IBC SFC 99-1 Superflow and IBC SFC 199-1 Superflow are two combination (combi) boilers from the IBC Technologies Superflow SFC-1 Combi line. Published ratings: IBC SFC 99-1 Superflow at 15.5–99 MBH input, 89 MBH output and 96% AFUE; IBC SFC 199-1 Superflow at 28.5–125 MBH input, 111 MBH output and 95% AFUE. IBC SFC 199-1 Superflow lists 26 MBH more input than IBC SFC 99-1 Superflow (125 MBH against 99 MBH). IBC SFC 99-1 Superflow lists 1 percentage points more AFUE than IBC SFC 199-1 Superflow (96% against 95%). IBC SFC 99-1 Superflow lists 1 lb more shipping weight than IBC SFC 199-1 Superflow (85 lb against 84 lb).
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | IBC SFC 99-1 Superflow | IBC SFC 199-1 Superflow |
|---|---|---|
| Heating input, minimum | 15.5 MBH | 28.5 MBH |
| Heating input, maximum | 99 MBH | 125 MBH |
| CSA output, minimum | 14.8 MBH | 27.1 MBH |
| CSA output, maximum | 89 MBH | 111 MBH |
| Efficiency (AFUE) | 96 % | 95 % |
| DHW input, maximum | 99 MBH | 199 MBH |
| Max. DHW flow rate | 4 GPM | 7 GPM |
| Domestic hot water | Integrated coil in the main heat exchanger (combi) | Integrated coil in the main heat exchanger (combi); built-in bypass valve to steady DHW temperatures |
| Weight (empty) | 85 lb | 84 lb |
| Flue material | 2" Schedule 40 PVC, CPVC or PPs | 2" Schedule 40 PVC, CPVC or PPs |
| Max. equivalent vent length, 2" | 65 ft | 65 ft |
| Max. equivalent vent length, 3" | 120 ft | 120 ft |
| Heating water connections | 1" NPT | 1" NPT |
| Gas connection | 3/4" NPT | 3/4" NPT |
| Max. operating pressure, heating coil | 43.5 psig | 43.5 psig |
| Fuel | Natural gas or propane | Natural gas or propane |
| DHW delivery at 70°F rise | 2.4 GPM | 5 GPM |
| Flow to activate DHW | 0.5 GPM | 0.5 GPM |
| Gas supply pressure | 4 – 14 in. w.c. | 4 – 14 in. w.c. |
| Altitude rating | 10,000 ft | 10,000 ft |
| DHW connections | 3/4" NPT | 3/4" NPT |
| Condensate connection | 3/4" hose | 3/4" hose |
Published ratings: the IBC SFC 99-1 Superflow is rated 15.5–99 MBH input, 89 MBH output and 96% AFUE; the IBC SFC 199-1 Superflow is rated 28.5–125 MBH input, 111 MBH output and 95% AFUE. IBC SFC 199-1 Superflow lists 26 MBH more input than IBC SFC 99-1 Superflow (125 MBH against 99 MBH). IBC SFC 99-1 Superflow lists 1 percentage points more AFUE than IBC SFC 199-1 Superflow (96% against 95%).
IBC SFC 99-1 Superflow lists 1 lb more shipping weight than IBC SFC 199-1 Superflow (85 lb against 84 lb). The domestic-hot-water input differs: the IBC SFC 99-1 Superflow lists 99 MBH, while the IBC SFC 199-1 Superflow lists 199 MBH. The domestic-hot-water flow differs: the IBC SFC 99-1 Superflow lists 4 GPM, while the IBC SFC 199-1 Superflow lists 7 GPM. The domestic-hot-water arrangement differs: the IBC SFC 99-1 Superflow lists Integrated coil in the main heat exchanger (combi), while the IBC SFC 199-1 Superflow lists Integrated coil in the main heat exchanger (combi); built-in bypass valve to steady DHW temperatures.
Both records print the same venting (2" Schedule 40 PVC, CPVC or PPs), max. equivalent vent length, 2" (65 ft), max. equivalent vent length, 3" (120 ft) and water connections (1" NPT), per the cited sources.
IBC Technologies
The IBC SFC 99-1 is the smallest Superflow SFC combi boiler: up to 99 MBH input for space heating and DHW, 96% AFUE, wall-hung, with 2" or 3" PVC/CPVC/PPs venting. It is a fit for townhouses and smaller homes wanting one appliance for heat and hot water.
IBC Technologies
The IBC SFC 199-1 is the largest Superflow combi: 95% AFUE, up to 125 MBH for space heating and 199 MBH for hot water, 5 GPM continuous DHW at a 67°F rise, with wireless cascade of up to eight units on the SFC 199-1.
The IBC SFC 199-1 Superflow lists 125 MBH, against 99 MBH on the IBC SFC 99-1 Superflow, per the cited documentation.
The IBC SFC 99-1 Superflow carries the higher published AFUE at 96%, against 95%.
It ships at 85 lb against 84 lb for the IBC SFC 199-1 Superflow, 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.