Heil N4H3 Heat Pumps

Heil N4H3 Heat Pump Overview

The Heil N4H3 is a single-stage heat pump with an efficiency of 13 SEER and 7.7 HSPF and a cooling capacity of 1.5 – 5 tons. The unit is capable of dual fuel heating when used with a compatible gas furnace and thermostat. The system features sound levels as low as 69 decibels and is protected by high and low pressure switches and a filter drier. Its galvanized steel cabinet has a powder coat finish for protection against corrosion and weather hazards.

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Consumer Reviews of Heil N4H3


  • Very Satisfied
  • Somewhat Satisfied
  • Neutral
  • Somewhat Unsatisfied
  • Very Unsatisfied
  • #1 of 4 Heil Heat Pump
  • 25% of customers recommended

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Heil N4H3 Heat Pump Reviews

"Poor service and warranty"

1.0 rating
Very Unsatisfied

Unit breaks down and good luck getting someone to fix. Then they say you didn't register for warranty and say to bad you don't have warranty.

G. Mlr

Edwards, MO

"Good mid line system"

5.0 rating
Very Satisfied

I have been in the HVAC industry for 30 years. Therefore I can say 75% of HVAC failures are due to incompetent installation. A majority of compressor failures and air flow issues are due to "lazy" installers, or technicians. I have been installing Heil equipment for 20 years, and have had no call backs in the first 5 years. Most of my calls are related to small failures such as capacitors, defrost boards, or fan motors. A majority of the problems are due to lack of maintenance, such as not replacing filters or cleaning coils. Overall, Heil has been a reliable line of equipment to date. It is important that you choose a reliable contractor or technician. A good place to find one is referrals from friends.


Vinton, VA

"Junked after 5 years"

1.0 rating
Very Unsatisfied

I bought a new home in October 2010 with this Heil unit. Neither the builder nor installer registered the unit, so the warranty was 5 years. During the 5th year, the system started losing refrigerant. It was several weeks after the 5 year warranty expired that an HVAC contractor found the leak in the handler copper coil. They also found a cracked plastic pan in the unit and damage caused by the persistent low level of refrigerant in between refills. Because of the cracked pan, the unit was badly rusted as well. Two HVAC companies recommended installing a new system rather than spending money on the damaged system. I have two neighbors with the same unit and both are experiencing refrigerant leaks. Apparently there is a weakness in the copper coils in the exchange unit. I would never buy Heil again. There are much better brands — and make sure your warranty is registered with the manufacturer or you only have a five year warranty on parts.

C. Teller

Myrtle Beach, SC

"Heat pump / AC"

1.0 rating
Very Unsatisfied

Booklet only has a n4h3 on cover. Installed last Monday, June 23. Does not cool. Stopped working. Never worked all last weekend. Installers, Buckman's Family Fuel, in Chestertown, ny, came back today June 30 to fix. Left by 4 pm, it still does not cool. It turns on and off and on and off and now they are closed. I am 72 years old and have had air conditioning and/or a heat pump for a good part of my life. Never had a problem with other manufacturers. Will never buy this brand again and will never recommend it.

J.A. Granat

Chestertown, New York

Other N4H3 Reviews

Among the very few comments regarding the N4H3 on HVAC forums is one on gardenweb.com stating that while it is a bottom-line entry model, it is similar to other entry models and the most important thing with any unit is the installation.

N4H3 Warranty

Product registration is required within 90 days for maximum warranty coverage. The Heil N4H3 heat pump warranty is comprised of the following:

  • 10-year parts (including compressor and coil) warranty

Labor costs are not covered by the warranty.

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