HTP UFT Boilers

HTP UFT Boiler Overview

The HTP UFT boiler is a medium mass, modulating gas condensing boiler with an efficiency rating of 96% AFUE. It has ultra-low NOx emissions and is an Energy Star Most Efficient 2016 product. The UFT is a wall-hung boiler and is equipped with supply and return connections on both the top and bottom. It features a laser welded 316L stainless steel fire tube heat exchanger and is equipped with a gas leak detector for additional safety. The UFT vents in PVC, CPVC, and Polypropylene piping, with overall vent lengths of up to 100 feet for 3″ pipe or 50 feet for 2″ pipe. A digital control system shows fault codes and descriptions and can be used to adjust and monitor temperatures.

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Consumer Reviews of HTP UFT


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #1 of 12 HTP Boiler
  • 100% of customers recommended

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HTP UFT Boiler Reviews

"Great unit"

5.0 rating
Very Satisfied

Since the UFT is part of HTP's line up, we installed over a hundred of these units. Mostly heating with indirect dhw. All units have been installed according to installer's manual with combustion analysis at initial startup. We had 3 warranty claims, 2 of them were the gas leak sensor and the other one was a faulty card. For residential application, it is a good, reliable boiler. As long as the pump is sized properly, a magnetic dirt separator is installed and vent length is respected it will run great.


Montreal, QC

Other UFT Reviews

On, a homeowner looking into replacement boilers was advised in one reply to look at the UFT. On another post on the same site, a homeowner asking for opinions on the UFT was advised to also look into a Navien unit. In the end, it sounded as though he was going with the UFT.

UFT Warranty

The warranty for the HTP UFT boiler is comprised of the following:

  • 10-year heat exchanger and 5-year parts warranty (residential)
  • 5-year heat exchanger and 1-year parts warranty (commercial)

Labor costs are not covered by the warranty.

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