HTP · UFT Combi (discontinued)
HTP UFTC-140W
The HTP UFTC-140W is the wall-mount 140 MBH class combi of the retired UFT Combi line: 14,000 to 140,000 BTU/hr CH input, 14,000 to 140,000 BTU/hr DHW input and 96% AFUE, recorded from the official LP-648 technical table.
Key figures
- Max input
- 140 MBH
- Max CSA output
- —
- AFUE
- 96 %
- Min input
- 14 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
HTP UFTC-140W in practice
The UFTC-140W is one of the four UFT Combi configurations (UFTC-140/199 in wall "W" or floor "F" mount) documented on HTP's retired UFT Combination documents page. LP-648 Table 8 prints 14,000-140,000 BTU/hr central-heating input, 14,000-140,000 BTU/hr DHW input, 96% AFUE, 110 lb wall-model weight, a 17.5" W x 34" H x 15.4" D cabinet, DHW flows of 7.1 / 5.5 / 3.2 GPM at 35 / 45 / 77°F rise and 1 gal storage tank + 4 gal heat exchanger (5 gal total).
The UFT Combi uses an ASME 'H' stamped 316L stainless steel fire-tube heat exchanger with an internal 316L stainless steel indirect storage tank, a 10:1 modulating burner, a built-in low water cut-off, an installed internal pump and the NGTX-900C / P-920C_CB-HTP control. It vents as a Category IV sealed-combustion appliance in 2" (50 ft) or 3" (100 ft) pipe, connects CH at 1" NPT, DHW at 3/4" NPT and gas at 3/4" NPT, and carries a 10-year limited warranty. The LP-646 submittal prints up to 96% AFUE.
The UFT Combi is retired: the official documents page states verbatim 'This products has been discontinued, please see the below documentation for support.' and the discontinued index lists 'UFT Combi Boiler - Wall & Floor'. Boilers.ca records it with productStatus 'discontinued' and canadianStatus 'unknown'; no official Canadian sales statement was found. Service an installed unit with a licensed contractor against LP-648.
Best suited to
- Identifying a retired UFT Combi already installed
- Retrieving the official LP-648/LP-646/mktlit-115 documentation
- Replacement planning for a wall or floor combi with a known DHW draw
Applicability and support
- Model number
- UFTC-140W
- Canadian availability
- unknown
- Production status
- discontinued
- 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 HTP. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Central-heating input, minimum | 14 MBH | 14,000 BTU/hr as printed in LP-648 Table 8 and the mktlit-115 brochure. |
| Central-heating input, maximum | 140 MBH | 140,000 BTU/hr as shipped; LP-648's footnote states 199 models can be increased up to 199,000 BTU/hr with a larger external pump in the primary loop. |
| Efficiency | ||
| AFUE | 96 % | LP-648 Table 8 prints 96%; the mktlit-115 brochure prints 96. |
| Domestic hot water | ||
| DHW input, minimum | 14 MBH | 14,000 BTU/hr as printed in LP-648 Table 8 and the brochure. |
| DHW input, maximum | 140 MBH | 140,000 BTU/hr as printed in LP-648 Table 8 and the brochure. |
| DHW flow rate at 35 °F rise | 7.1 gpm | As printed in LP-648 Table 8. |
| DHW flow rate at 45 °F rise | 5.5 gpm | As printed in LP-648 Table 8. |
| DHW flow rate at 77 °F rise | 3.2 gpm | As printed in LP-648 Table 8. |
| Venting and air | ||
| Venting | 2" (50 ft) or 3" (100 ft), combined equivalent feet | Category IV sealed-combustion direct vent / power vent; CPVC, PVC, PP per the mktlit-115 brochure. |
| Physical and connections | ||
| Weight, wall model | 110 lb | As printed in LP-648 Table 8 (wall-mount and floor-model weight rows). |
| Dimensions (W x H x D) | 17.5" W x 34" H x 15.4" D | As printed in LP-648 Table 8. |
| Water pressure | CH minimum 12 / maximum 30 psi; DHW maximum 150 psi | As printed in LP-648 Table 8. |
| Water capacity | 1 gal storage tank + 4 gal heat exchanger (5 gal total) | As printed in LP-648 Table 8 (internal storage tank + heat exchanger). |
| Heat exchanger and tank | 316L stainless steel, ASME 'H' stamped, with internal 316L stainless steel indirect storage tank | Per the LP-646 submittal. |
| Operating limits and other | ||
| Connections | CH supply/return 1" NPT; DHW inlet/outlet 3/4" NPT; gas 3/4" NPT | As printed in LP-648 Table 8 and the brochure connection diagram. |
| Control | NGTX-900C / P-920C_CB-HTP | As printed in LP-648 Table 8. |
| Turndown | 10:1 | LP-646 submittal: 'Modulating burner with a turn down of up to 10 to 1'; LP-648 also describes the 199's factory 140,000 max input configuration. |
| Warranty | 10-year limited warranty | LP-646 submittal prints a 10 Year Limited Warranty. |
Manuals
- HTP UFT Combi (UFTC-140/199) Installation, Start-Up, Maintenance, Parts, Warranty Manual — LP-648 Rev. 002 Rel. 002 (9.16.20; units made on/after 1/1/2020)LP-648 Rev. 002 (9.16.20) · 2020-09-16
- HTP UFTC Combined Appliance Submittal Sheet — LP-646LP-646
- HTP UFT Combi Brochure (model table) — MKTLIT-115MKTLIT-115
Alerts documented for this model
Frequently asked questions
Is the UFTC-140W a combi?
Yes — the UFT Combi combines central heating and domestic hot water; LP-648 Table 8 prints CH input 14,000-140,000 and DHW input 14,000-140,000 BTU/hr.
Is the UFT Combi discontinued?
Yes — the official documents page states 'This products has been discontinued, please see the below documentation for support.' and the discontinued index lists the UFT Combi Boiler (Wall & Floor).
What is the maximum DHW input of the UFTC-140W?
140,000 BTU/hr as printed in LP-648 Table 8.
Questions about the HTP UFTC-140W?
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
- HTP — UFT Combination Wall & Floor Boiler Documents (official discontinued wording) · accessed September 9, 2026
- UFT Combi Installation Manual, LP-648 Rev. 002 (9.16.20) · accessed September 9, 2026
- UFTC Combined Appliance Submittal Sheet, LP-646 · accessed September 9, 2026
- UFT Combi Brochure, MKTLIT-115 · accessed September 9, 2026
- HTP — Discontinued Products index · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.