Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The FTVN110C and FTVN150C are the two smaller FTVN combis: both 95% AFUE with the same connections and venting. The 150C lifts space heating from 110 to 150 MBH and continuous DHW from 2.7 to 3.6 GPM at a 77°F rise, costing 21.5 lb of weight and a minimum fire that rises from 11 to 15 MBH.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | NTI Trinity FTVN110C | NTI Trinity FTVN150C |
|---|---|---|
| Space-heating input, minimum | 11 MBH | 15 MBH |
| Space-heating input, maximum | 110 MBH | 150 MBH |
| Efficiency (AFUE) | 95 % | 95 % |
| Turndown ratio | up to 10:1 | up to 10:1 |
| Weight | 107 lb | 128.5 lb |
| Max. equivalent vent length, 2" | 100 ft | 100 ft |
| Max. equivalent vent length, 3" | 150 ft | 150 ft |
| CH water connections | 1 1/4" NPT | 1 1/4" NPT |
| DHW connections | 3/4" NPT | 3/4" NPT |
| DHW capacity at 77°F rise | 2.7 GPM | 3.6 GPM |
| Domestic hot water | Integrated combi (DHW plate) in the appliance | Integrated combi (DHW plate) in the appliance |
Both combis run the FTVN platform at 95% AFUE with an integrated DHW plate, 1 1/4" NPT CH connections, 3/4" NPT DHW connections and the same venting — 2" to 100 ft or 3" to 150 ft per side. The differences are capacity: the 110C heats at 11 to 110 MBH and the 150C at 15 to 150 MBH.
NTI rates continuous DHW at 2.7 GPM for the 110C and 3.6 GPM for the 150C, both at a 77°F rise — the 150C adds a third more hot-water headroom, which is the usual reason to step up. The cost is physical: 128.5 lb against 107 lb, and a minimum fire of 15 MBH instead of 11.
For a BC household the two models split at the DHW and load calculation: homes whose simultaneous or back-to-back draws exceed 2.7 GPM continuous, or whose heat loss exceeds 110 MBH, justify the 150C; compact homes under both thresholds keep the lighter 110C with its lower minimum fire.
NTI Boilers
The NTI Trinity FTVN110C is the smallest FTVN combi: it heats at 11 to 110 MBH input and delivers 2.7 GPM of continuous domestic hot water at a 77°F rise, all in the same 107 lb wall-hung cabinet as the heating-only FTVN110.
NTI Boilers
The NTI Trinity FTVN150C is the mid-size FTVN combi: space heating from 15 to 150 MBH input plus 3.6 GPM of continuous DHW at a 77°F rise, at 95% AFUE, in a 128.5 lb wall-hung unit.
3.6 GPM continuous at a 77°F rise against 2.7 GPM on the 110C, per NTI's product page — about a third more on the DHW side.
No. The FTVN110C weighs 107 lb and the FTVN150C 128.5 lb; both use 1 1/4" NPT CH connections, 3/4" DHW connections and the same 2"/3" venting terms.
Size both sides: the heat-loss calculation for the heating input, and the household's real draws against 2.7 or 3.6 GPM continuous at a 77°F rise. The model that covers both with headroom to spare is the right one.
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.