HTP UFT-199 199 MBH Combi Boiler

The HTP UFT-199 is a 199,000 BTU combi boiler from Heat Transfer Products. UFT identifies the Universal Fire Tube line — HTP's premium fire-tube heat exchanger architecture providing both space heating and domestic hot water.

Specs: 199,000 BTU input, AFUE 95% (condensing), fire-tube stainless steel heat exchanger with self-cleaning design, up to 6.5 GPM DHW at 70°F rise. Built-in buffer for DHW. PVC condensing venting. 15-year warranty on heat exchanger.

The fire-tube architecture is HTP's premium engineering. Combustion gases flow through tubes inside the water jacket, providing better heat transfer and less scaling than water-tube designs. The self-cleaning feature uses the unit's modulation cycles to flush condensate through the heat exchanger.

HTP positioning: high-efficiency hydronic specialist with strong Northeast US dealer network. Outside the Northeast, service availability is thinner than Navien and Rinnai combi alternatives. About $9,000-$12,000 installed depending on hydronic system modifications.

Right buyer: medium-large home in HTP service territory, replacing aging boiler + water heater with single high-efficiency combi.