Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
Boilers.ca is a brand of ROMA Heating & Cooling · Licensed gas contractor LGA0202903
Comparison
Verdict in brief
The UFTC-199W is the larger UFT Combi wall model: it fires 19,900-199,000 BTU/hr for DHW against the 140W's 14,000-140,000, delivers 9.9 vs 7.1 GPM at a 35 °F rise and uses the deeper 19.7 x 37 x 16.8 in cabinet at 120 lb. The 140W prints 96% AFUE against 95% for the 199W.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | HTP UFTC-140W | HTP UFTC-199W |
|---|---|---|
| Central-heating input, minimum | 14 MBH | 19.9 MBH |
| Central-heating input, maximum | 140 MBH | 140 MBH |
| DHW input, minimum | 14 MBH | 19.9 MBH |
| DHW input, maximum | 140 MBH | 199 MBH |
| AFUE | 96 % | 95 % |
| DHW flow rate at 35 °F rise | 7.1 gpm | 9.9 gpm |
| DHW flow rate at 45 °F rise | 5.5 gpm | 7.7 gpm |
| DHW flow rate at 77 °F rise | 3.2 gpm | 4.8 gpm |
| Weight, wall model | 110 lb | 120 lb |
| Dimensions (W x H x D) | 17.5" W x 34" H x 15.4" D | 19.7" W x 37" H x 16.8" D |
LP-648 Table 8 prints 14,000-140,000 BTU/hr CH and DHW for the 140 and 19,900-140,000 CH (as shipped) with 19,900-199,000 DHW for the 199; the 199's CH maximum can be raised to 199,000 with a larger external pump.
DHW flows are 7.1/5.5/3.2 GPM on the 140W and 9.9/7.7/4.8 GPM on the 199W at 35/45/77°F rises, with weights of 110 vs 120 lb and cabinets of 17.5 x 34 x 15.4 in vs 19.7 x 37 x 16.8 in.
Both are 10:1-turndown combis with 1" NPT CH, 3/4" NPT DHW and gas connections, 12-30 PSI CH pressure, 2" (50 ft) or 3" (100 ft) venting and a 10-year limited warranty; AFUE prints 96% vs 95%.
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.
The HTP UFTC-199W is the wall-mount 199 MBH class combi of the retired UFT Combi line: 19,900 to 140,000 BTU/hr CH input, 19,900 to 199,000 BTU/hr DHW input and 95% AFUE, recorded from the official LP-648 technical table.
9.9 GPM at a 35°F rise against 7.1 GPM on the UFTC-140W, per LP-648 Table 8.
LP-648 Table 8 prints 95% for the 199 and 96% for the 140; the mktlit-115 brochure prints 95.1% for the 199.
It ships at a 140,000 BTU/hr maximum and can be increased to 199,000 with a larger external pump installed in the primary loop, per the LP-648 footnote.
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 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.