Canada-wide gas boiler information · On-site service in Greater Vancouver, BC
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Comparison
Verdict in brief
The UFTC-199F is the larger UFT Combi floor model: it delivers 9.9 vs 7.1 GPM at a 35 °F rise, fires 19,900-199,000 BTU/hr for DHW, ships at 150 lb against 140 lb and uses a wider 22 x 48 x 18 in cabinet against the 140F's 19 x 45 x 17 in. The 140F prints 96% AFUE against 95% for the 199F.
Published manufacturer figures. Input and output are kept separate; blanks mean the manufacturer did not publish that value.
| Specification | HTP UFTC-140F | HTP UFTC-199F |
|---|---|---|
| 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, floor model | 140 lb | 150 lb |
| Dimensions (W x H x D) | 19" W x 45" H x 17" D | 22" W x 48" H x 18" D |
LP-648 Table 8 prints the same input structure as the wall models: 14,000-140,000 BTU/hr CH/DHW on the 140F and 19,900-140,000 CH / 19,900-199,000 DHW on the 199F.
The 199F delivers 9.9/7.7/4.8 GPM at 35/45/77°F rises against 7.1/5.5/3.2, and grows the floor cabinet from 19 x 45 x 17 in to 22 x 48 x 18 in with a 10 lb weight increase.
Both are 10:1-turndown floor combis with 1" NPT CH and 3/4" NPT DHW/gas connections, 2" (50 ft) or 3" (100 ft) venting and a 10-year limited warranty; AFUE prints 96% vs 95%.
The HTP UFTC-140F is the floor-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-199F is the floor-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.
DHW input and delivery (14,000-140,000 / 7.1 GPM vs 19,900-199,000 / 9.9 GPM at a 35°F rise), cabinet size and weight, and a 96% vs 95% AFUE print.
Yes — both use 2" (50 ft) or 3" (100 ft) combined venting.
The UFTC-199F, at 9.9 GPM at a 35°F rise and 4.8 GPM at 77°F.
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.