NTI Trinity FTG1200
The NTI Trinity FTG1200 is the entry size of the FTG commercial fire-tube line as NTI's page lists it: 120 to 1200 MBH input at 96.1% thermal efficiency, with a 1,153 MBH heating capacity and a 1,003 MBH Net AHRI rating.
Key figures
- Max input
- 1,200 MBH
- Max CSA output
- —
- AFUE
- —
- Min input
- 120 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
NTI Trinity FTG1200 in practice
NTI lists the FTG1200 at 120 to 1200 MBH input with 96.1% thermal efficiency — the top rating on its FTG spec table — a heating capacity of 1,153 MBH and a Net AHRI rating of 1,003 MBH. The page shows an indoor floor-standing unit with 3 in grooved water connections, a 1 1/4 in NPT female gas connection, and an 8 in air inlet and 8 in flue, each running up to 150 ft.
The FTG page's 1,210 lb weight row is not qualified as with water; the FTG Installation and Operation Manual (99985422) lists this size class at 1,500 lb with water, which Boilers.ca reports as the manual figure. In Canada the same manual calls for a 10% input derate at altitudes from 2,000 to 4,500 ft, and the FTG600 and FTG800 — covered by the manual but absent from the page table — sit below this model in the family.
Best suited to
- Commercial hydronic plants whose demand calculation sits between 120 and 1200 MBH
- Buildings wanting the FTG fire-tube platform's touchscreen control and cascade settings at its smallest page-listed size
- Mechanical rooms that can run 8 in venting up to 150 ft
Applicability and support
- Model number
- FTG1200
- Canadian availability
- available
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Series terms
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 NTI Boilers. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 120 MBH | Per the NTI product page. |
| Input, maximum | 1,200 MBH | Per the NTI product page. |
| Output | ||
| Heating capacity | 1,153 MBH | Per the NTI product page. |
| Net AHRI rating | 1,003 MBH | Per the NTI product page. |
| Efficiency | ||
| Thermal efficiency | 96.1 % | Per the NTI product page. |
| Domestic hot water | ||
| Domestic hot water | Heating-only; pair with an indirect tank or separate water heater | |
| Venting and air | ||
| Air inlet size | 8 in | Diameter per the NTI product page; air-inlet runs up to 150 ft. |
| Flue size | 8 in | Diameter per the NTI product page; flue runs up to 150 ft. |
| Physical and connections | ||
| Weight | 1,210 lb | Per the NTI product page; the page row is not qualified as with water. |
| Weight, with water | 1,500 lb | Per the FTG I&O manual's with-water figure for this size class; the product page prints 1,210 lb. |
| Water connections (inlet / outlet) | 3" grooved joint | Inlet and outlet per the NTI product page. |
| Gas connection | 1 1/4" NPT female | Per the NTI product page. |
| Operating limits and other | ||
| Canada altitude derate | 10% derate at 2,000–4,500 ft | Per the FTG Installation and Operation Manual. |
| Fuel | Natural gas | Input ratings per the NTI product page. |
Manuals
- FTG Installation and Operation Manual, 99985422, V.2024-06-2899985422 · 2024-06-28
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Frequently asked questions
What is the FTG1200's efficiency?
96.1% thermal efficiency per the NTI product page — the highest rating printed on the FTG spec table.
What connections does the FTG1200 use?
3 in grooved water connections on the inlet and outlet and a 1 1/4 in NPT female gas connection, per the NTI product page.
How much does the FTG1200 weigh?
1,210 lb per the NTI product page; the FTG I&O manual lists the size class at 1,500 lb with water.
Questions about the NTI Trinity FTG1200?
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
- NTI — FTG Series product page · accessed September 8, 2026
- FTG Installation and Operation Manual · 99985422 · accessed September 8, 2026
Facts checked September 8, 2026. Last updated September 8, 2026. Technical reviewer: not yet assigned.