NTI Trinity Lx200
The NTI Trinity Lx200 stretches the Lx entry class to 199 MBH: 25 to 199 MBH input at 93.5% AFUE in a 125 lb floor-standing boiler with a wall-hung kit included, on 3" venting to 105 ft.
Key figures
- Max input
- 199 MBH
- Max CSA output
- —
- AFUE
- 93.5 %
- Min input
- 25 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
NTI Trinity Lx200 in practice
The Lx200 keeps the Lx150's 25 MBH minimum fire but raises the ceiling to 199 MBH, delivering the classic 199-class output on NTI's fire-tube platform at 93.5% AFUE. It weighs 125 lb and shares the Lx150's 1" NPT water connections and 1/2" NPT gas connection, with 3" venting to 105 ft per side.
In the Lx line's own terms the 200 is the size that pairs a genuine 199 MBH ceiling with the lightest Lx cabinet class, and NTI includes the wall-hung kit for it. For a building whose calculated load stops near 199 MBH, the Lx200 avoids the jump to the 275 MBH class Lx300 while staying inside the same venting and connection plan as the 150.
Best suited to
- Buildings needing the 199 MBH class on NTI's fire-tube platform
- Projects wanting the Lx150's connection and venting plan with more ceiling
- Light-commercial and large-residential loads within 199 MBH input
Applicability and support
- Model number
- Lx200
- Canadian availability
- available
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
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 | 25 MBH | Per the NTI product page. |
| Input, maximum | 199 MBH | Per the NTI product page. |
| Efficiency | ||
| Efficiency (AFUE) | 93.5 % | 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 | ||
| Max. equivalent vent length | 105 ft | 3" pipe per side; maximum equivalent run per the NTI product page. |
| Physical and connections | ||
| Weight | 125 lb | Per the NTI product page. |
| Water connections | 1" NPT female | Per the NTI product page. |
| Gas connection | 1/2" NPT female | Per the NTI product page. |
| Operating limits and other | ||
| Fuel | Natural gas or propane | NTI publishes LP conversion instructions for this series. |
Manuals
- Trinity Lx 150–800 I&O Manual, 99986573, V.2024-06-2899986573 · 2024-06-28
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Frequently asked questions
How does the Lx200 compare with the Lx150?
Both are 93.5% AFUE on the same venting (3" to 105 ft) and connection sizes. The Lx200 fires to 199 MBH instead of 150 and weighs 125 lb against 100 lb.
Does the Lx200 come with a wall-hung kit?
Yes — NTI's features list says the wall-hung kit is included for the Lx200–400 sizes.
Is the Lx200 rated on LP like the Lx150?
NTI's product table prints a 25 to 199 MBH input for the Lx200 without the Lx150's LP cap; LP conversion follows NTI's Lx conversion instructions and a licensed gas fitter.
Questions about the NTI Trinity Lx200?
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.
Compare and explore
- NTI Trinity Lx150 vs Lx200Comparison
- NTI Trinity Lx200 vs Lx300Comparison
- NTI Trinity Lx150Same series
- NTI Trinity Lx300Same series
- NTI Trinity Lx400Same series
- NTI Trinity Lx500Same series
- NTI Trinity Lx600Same series
- NTI Trinity Lx700Same series
- NTI Trinity Lx800Same series
- Trinity Lx series hub
- Buying guide
Sources and verification
- NTI — Trinity Lx Series product page · accessed September 7, 2026
- Trinity Lx 150–800 I&O Manual, 99986573, V.2024-06-28 · 99986573 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.