Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The FTG1400 and FTG2000 sit on either side of NTI's FTG class change: input rises from 140–1400 to 235–2000 MBH and heating capacity from 1,344 to 1,920 MBH, while the page weight steps from 1,210 to 1,710 lb (1,500 to 2,140 lb with water per the I&O manual) and the gas connection from 1 1/4" NPT female to 1 1/2" NPT male. Thermal efficiency is 96% on both page rows.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | NTI Trinity FTG1400 | NTI Trinity FTG2000 |
|---|---|---|
| Input, minimum | 140 MBH | 235 MBH |
| Input, maximum | 1,400 MBH | 2,000 MBH |
| Thermal efficiency | 96 % | 96 % |
| Heating capacity | 1,344 MBH | 1,920 MBH |
| Net AHRI rating | 1,169 MBH | 1,670 MBH |
| Weight | 1,210 lb | 1,710 lb |
| Weight, with water | 1,500 lb | 2,140 lb |
| Water connections (inlet / outlet) | 3" grooved joint | 3" grooved joint |
| Gas connection | 1 1/4" NPT female | 1 1/2" NPT male |
| Air inlet size | 8 in | 8 in |
| Flue size | 8 in | 8 in |
| Canada altitude derate | 10% derate at 2,000–4,500 ft | 10% derate at 2,000–4,500 ft |
| Domestic hot water | Heating-only; pair with an indirect tank or separate water heater | Heating-only; pair with an indirect tank or separate water heater |
The FTG1400 fires 140 to 1400 MBH at 96% thermal efficiency with a 1,344 MBH heating capacity and a 1,169 MBH Net AHRI rating, on the page's 1,210 lb class with a 1 1/4 in NPT female gas connection. The FTG2000 fires 235 to 2000 MBH — also listed at 96% — with a 1,920 MBH heating capacity and a 1,670 MBH Net AHRI rating.
The FTG2000 moves to the large FTG class: 1,710 lb on the page (2,140 lb with water per the I&O manual), a 1 1/2 in NPT male gas connection, and the same 3 in grooved water connections and 8 in air inlet and flue runs to 150 ft. Its minimum fire jumps from 140 to 235 MBH, which is the clearest sign that the 2,000 MBH-class models expect sustained plant load.
Both are heating-only fire-tube boilers with the FTG touchscreen control and cascade settings, and both carry the I&O manual's 10% Canada altitude derate between 2,000 and 4,500 ft. The 2000 earns its place when plant demand approaches its ceiling and the mechanical room can take the heavier unit and the 1 1/2 in male gas connection.
NTI Boilers
The NTI Trinity FTG1400 lifts the FTG page's entry class to a 1,400 MBH ceiling: 140 to 1400 MBH input at 96% thermal efficiency, with a 1,344 MBH heating capacity and a 1,169 MBH Net AHRI rating.
NTI Boilers
The NTI Trinity FTG2000 is the entry of the 2,000 MBH-class FTG fire-tube boilers: 235 to 2000 MBH input at 96% thermal efficiency, with a 1,920 MBH heating capacity and a 1,670 MBH Net AHRI rating on a 1 1/2" NPT male gas connection.
Input rises from 140–1400 to 235–2000 MBH and heating capacity from 1,344 to 1,920 MBH; page weight steps from 1,210 to 1,710 lb and the gas connection from 1 1/4" NPT female to 1 1/2" NPT male. Thermal efficiency stays 96% on both rows.
It is the entry of the larger FTG class: 1,710 lb on the page against the 1400's 1,210 lb, with the I&O manual listing the 2,000 MBH class at 2,140 lb with water.
Yes — NTI's table lists 96% thermal efficiency for both, so the step buys capacity, not efficiency.
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 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.