NTI Trinity TFTN150
The NTI Trinity TFTN150 is the 95% AFUE wall-hung TFTN for mid-to-larger homes: 15 to 150 MBH input, 122 lb with water, on 1 1/4" NPT CH connections with 2" venting to 100 ft or 3" to 150 ft.
Key figures
- Max input
- 150 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 15 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
NTI Trinity TFTN150 in practice
The TFTN150 steps the wall family up to a 150 MBH ceiling with a slightly deeper cabinet (18 3/4 inches against 17 1/4 on the 085 and 110) and 122 lb with water. It keeps the 1 1/4" NPT CH connections of the smaller sizes and the same touchscreen control, and it is heating-only, pairing with an indirect tank for domestic hot water.
Between the 110 and the 199, the 150 is the size most often selected when a heat-loss calculation plus hot-water recovery outgrows 110 MBH but stops short of the 199's territory. Its 15 MBH minimum fire still tracks mild Lower Mainland weather reasonably well, and the 2" vent option remains open to 100 ft per side.
Best suited to
- Mid-to-larger detached homes needing more than the TFTN110's ceiling
- Houses with radiators or in-floor loops plus an indirect tank
- Retrofits that keep the wall-hung family's 2" venting option
Applicability and support
- Model number
- TFTN150
- 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 | 15 MBH | Per the NTI product page. |
| Input, maximum | 150 MBH | Per the NTI product page. |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 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, 2" | 100 ft | 2" pipe; up to 100 ft each per the NTI product page. |
| Max. equivalent vent length | 150 ft | 3" pipe; up to 150 ft each per the NTI product page. |
| Physical and connections | ||
| Weight | 122 lb | With water, per the NTI product page. |
| CH water connections | 1 1/4" NPT | Male NPT per the NTI product page. |
| Gas connection | 3/4" NPT | Male NPT per the NTI product page. |
| Width | 19.875 in | Per the TFTN I&O manual, Table 2-1. |
| Height | 34.125 in | Per the TFTN I&O manual, Table 2-1. |
| Depth | 18.75 in | Per the TFTN I&O manual, Table 2-1. |
| Operating limits and other | ||
| Fuel | Natural gas or propane | NTI publishes LP conversion instructions for this series. |
Manuals
- TFTN 085–399 I&O Manual, 99987137, V.2025-04-24 (HMI R30)99987137 · 2025-04-24
- TFTN 500–850 I&O Manual, 99987545, V.2025-04-2499987545 · 2025-04-24
Alerts documented for this model
- 101 1
- 102
- 103 1
- 104 1
- 105 1
- 106 1
- 109
- 110 1
- 112 1
- 113
- 114
- 115
- 117 1
- 118 1
- 150
- 1P1 1
- 1P2 1
- 1P3 1
- 1P4
- 203
- 209
- 2P2
- 303
- 304
- 306
- 309
- 3P9
- 411
- 412
- 413
- 441
- 460
- 501 1
- 502
- 504 1
- 5P1
- 5P2
- 5P6
- 5P3
- 5P5
- 602
- 603 1
- 605
- 608
- 612 1
- 730
- Unconfigured
- Conflict
- 101 1
- 102
- 103 1
- 104 1
- 105 1
- 106 1
- 109
- 110 1
- 112 1
- 113
- 114
- 115
- 117 1
- 118 1
- 150
- 1P1 1
- 1P2 1
- 1P3 1
- 1P4
- 203
- 209
- 2P2
- 303
- 304
- 306
- 309
- 3P9
- 411/412/413
- 441
- 460
- 501 1
- 502
- 504 1
- 5P1
- 5P2
- 5P6
- 5P3
- 5P5
- 602
- 603 1
- 605
- 608
- 612 1
- 730
- Unconfigured
- Conflict
Frequently asked questions
What are the TFTN150's physical dimensions?
19 7/8 by 34 1/8 by 18 3/4 inches (width, height, depth) at 122 lb with water, per the I&O manual's Table 2-1.
Is the TFTN150 efficient?
NTI rates it 95% AFUE, the same as the 110, 199 and 285 wall models; the TFTN085 is the only 96% AFUE wall model.
Does the TFTN150 need 3" venting?
No — NTI lists 2" to 100 ft and 3" to 150 ft per side for this model, so both routes are available.
Questions about the NTI Trinity TFTN150?
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 TFTN110 vs TFTN150Comparison
- NTI Trinity TFTN150 vs TFTN199Comparison
- NTI Trinity TFTN150 vs Weil-McLain ECO Tec 150-HComparison
- NTI Trinity TFTN085Same series
- NTI Trinity TFTN110Same series
- NTI Trinity TFTN199Same series
- NTI Trinity TFTN285Same series
- NTI Trinity TFTN340Same series
- NTI Trinity TFTN399Same series
- NTI Trinity TFTN500Same series
- NTI Trinity TFTN600Same series
- NTI Trinity TFTN725Same series
- NTI Trinity TFTN850Same series
- Trinity TFTN series hub
- Buying guide
Sources and verification
- NTI — TFTN Series product page · accessed September 7, 2026
- TFTN 085–399 I&O Manual, 99987137, V.2025-04-24 (HMI R30) · 99987137 · accessed September 7, 2026
- TFTN 500–850 I&O Manual, 99987545, V.2025-04-24 · 99987545 · accessed September 7, 2026
Facts checked September 7, 2026. Last updated September 7, 2026. Technical reviewer: not yet assigned.