Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The VX 110 and VX 150 share the V-10 controller, 95% AFUE and 50 psig operating rating; the 150 adds about 37 MBH of maximum CSA output but its 2" vent allowance shrinks from 100 to 50 feet, its 3" limit from 240 to 170 feet, and it weighs 11 lb more.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | IBC VX 110 | IBC VX 150 |
|---|---|---|
| Input, minimum | 16.9 MBH | 23 MBH |
| Input, maximum | 110 MBH | 150 MBH |
| CSA output, minimum | 16.2 MBH | 22 MBH |
| CSA output, maximum | 101.5 MBH | 138.5 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Turndown ratio | up to 6.5:1 | up to 6.5:1 |
| Max. equivalent vent length, 3" | 240 ft | 170 ft |
| Max. equivalent vent length, 2" | 100 ft | 50 ft |
| Max. operating pressure | 50 psig | 50 psig |
| Water connections | 1" NPT | 1" NPT |
| Weight (empty) | 67 lb | 78 lb |
| Domestic hot water | Not a combi; IBC documents direct connection of an indirect tank | Not a combi; IBC documents direct connection of an indirect tank |
Both are compact, heating-only condensing boilers with built-in multi-zone control and a direct-connected indirect tank option. The 150's extra output (138.5 vs 101.5 MBH CSA maximum) is the main reason to move up, and both are rated to 50 psig maximum operating pressure.
The minimum fire rates also move: 16.9 MBH on the 110 versus 23 MBH on the 150. In a home with a modest load, the 110 tracks mild weather better; the 150 is only an advantage when the calculated load actually needs it.
Venting is the practical differentiator for retrofit planning: the 110 allows 100 equivalent feet of 2" and 240 of 3" per side, while the 150 drops to 50 and 170 feet. Weight rises from 67 to 78 lb.
IBC Technologies
The IBC VX 110 is the smallest VX Series boiler: 16.9 to 110 MBH input, 95% AFUE, wall-hung on the V-10 controller, with 2" venting allowed to 100 feet and 3" to 240 feet per side.
IBC Technologies
The IBC VX 150 is the mid-size VX Series boiler: 23 to 150 MBH input, 95% AFUE, wall-hung with the V-10 controller, 3" venting to 170 equivalent feet and a 2" option to 50 feet.
The VX 110: up to 240 equivalent feet in 3" or 100 in 2" per side. The VX 150 allows 170 feet in 3" or 50 in 2".
Yes, both are listed at 50 psig maximum operating pressure; the larger VX 199 is rated 30 psig.
When the heat-loss calculation exceeds the 110's output. Extra capacity without a load to match just raises the minimum fire rate and reduces condensing time.
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 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.