Lennox XP19 Heat Pumps | FurnaceCompare®

Lennox XP19 Heat Pump Overview

The Lennox XP19 heat pump is a discontinued two-stage heat pump with a SEER (cooling efficiency) measured at up to 18.6. This model is not currently manufactured, but may still be available through dealers. The XP19 runs at a lower capacity most of the time to reduce noise and energy costs. It has a heating efficiency of up to 9.3 HSPF. This heat pump utilizes R-410A refrigerant, which is ozone-friendly and EPA-approved. The XP19 was a part of the Lennox Signature collection.

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Consumer Reviews of Lennox XP19


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #8 of 17 Lennox Heat Pump
  • 6.67% of customers recommended

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Lennox XP19 Heat Pump Reviews

Showing 1-5 of 15 reviews

"Expensive but cheap"

2.0 rating
Somewhat Unsatisfied

This replaced a Lennox heat pump in 2009 that was really old house built in 1982. Fan motor quit in 2015, ran up electricity bill in winter. It's 2017 and​ hot air came out of vents In cooling mode, bad defrost board. What a waste of money is this dog. I should have bought a Trane or anything else

P Stewart


"Bad, bad, bad service."

2.0 rating
Somewhat Unsatisfied

The unit seems OK after 8 trips by the installer (**** ****** **********, Peoria, Arizona). I give them a 1 (1-10). It took 8 trips to get things working, including replacing the compressor, realigning the compressor box and thermostat, installing some insulation, getting the fan to work properly, plus other adjustments, plus there was an opening in the outside unit that allowed a rat to enter and chew the wiring. The tech replaced the wire but no attempt to fix the insulation the rat had ruined.

William Waldo

Sun City, AZ

"Ripped it out"

1.0 rating
Very Unsatisfied

My "top-of-the-line" Lennox XP19 was installed in 2006. It has been nothing but trouble. Even though it is still under warranty, I had it ripped out this year and installed a Trane. Lennox corporation is no help, and our local dealer is simply inept. I threw money at this thing every year and it still failed constantly. I went through the winter of 2014 on emergency heat mode. Anyone reading this, do yourself a favor and do not choose Lennox.


"Have Two Units, One Is A Complete Dog"

1.0 rating
Very Unsatisfied

About 4 years ago, we had two identical XP19 Lennox heat pumps installed within about 6 feet of each other at our estate residence. From the start, one of the units has behaved badly while the other worked as expected. The units were installed by a high-end contractor from Charlottesville who had installed three other (Trane) units at our other properties. Their work was great and their response has exceeded expectation. None of the Trane units have ever given us problems. In contrast, one of Lennox units has worked poorly from the start. It has had board failures several times, repeatedly frozen up, and generally functioned inconsistently. It has repeatedly gone into defrost mode in the winter, lowering the interior temperature 3 to 5 degrees and then shut down or frozen over. Sometimes, it would run and run and generate little or no heat. Other times, it would repeatedly go into 2nd stage, make little heat, and run for hours while the matching unit ran moderately as expected by the weather. Just a few days ago, the faulty unit froze up with 3" of ice on the top and completely ice-filled on the sides – and of course, no heat again. The matching unit sitting beside this defective unit worked flawlessly. Over these four years, our respected HVAC contractor has made numerous trips checking the unit, replacing boards, checking pressures, etc. – all to no avail. After a few weeks, the problems start again. This is just one lousy dog of a unit. Finally, I demanded that our contractor take the faulty unit out and replace it. Apparently, this finally moved the needle so that Lennox agrees to send someone to look (how kind of them). They are arranging to have a Lennox rep here in the next week, but (!) already the Lennox guy is saying it's possibly weather-related. That's simply bunk. If it was weather-related, both units would be affected approximately the same way. Trust me, Lennox, the weather really IS the same when the two units are six feet apart. I am ready to hear all the excuses. The way we see it, we're 100% OK with three Trane systems and hitting a lousy 50-50 with two expensive Lennox units. We'll report what the Lennox guy does (or doesn't) do. Please do look at the photos. Would you really like to see this over and over? George Beker

George Beker

madison, va

"Terrible Reliability"

1.0 rating
Very Unsatisfied

I bought this heatpump 6 years ago for $9024. From almost day one, it has had problems. I'm presently considering replacing it with another manufacturer's heat pump. It's difficult to know the extent to which the problems are installation-related or equipment related. The installer's service technicians blame the equipment. They tell me that all its energy-saving gizmos result in breakdowns.

T. Burke

Olympia, WA

Other XP19 Reviews

Comments posted on gardenweb.com reveal that the Lennox XP 19 is considered a "top of the line" model among heat pumps. A homeowner was considering an older model, and an expert answered that the XP 19 was superior to the other model mentioned. A more recent post on the same website shows one expert recommending the product, and another saying to check around and get more estimates.

A prospective customer asks a question on hvac-talk.com in reference to purchasing the Lennox XP 19 heat pump as part of a total package. The customer has also received a quote for the installation of a Carrier system. Two of the experts respond that the Lennox products would be a superior and more efficient system. Another post on hvac-talk.com involves two HVAC professionals talking about how much they like their XP 19s that they have in their own homes.

Lennox XP19 Model Numbers

The XP19 is available in different models which vary in efficiency and capacity.

Model Number SEER / HSPF BTUs per Hour
XP19-024-230* 18.4 / 9.1 0
XP19-036-230* 18.6 / 9.3 0
XP19-048-230* 17 / 9 0

XP19 Warranty

Lennox provides a limited warranty that covers parts only for five years. The installer will offer

new customers the opportunity to purchase a ten-year extended limited warranty at the time

of installation. New heat pump owners must register their products online or by contacting the dealer to make sure they qualify for warranty benefits.

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