Merit Series from Hammack Service Company in Richardson

Keep comfortable while keeping your costs under control with a Lennox® Merit® Series packaged system from Hammack Service Company in Richardson. With energy ratings of 13.00 SEER,* 7.70 HSPF** and 80% AFUE,*** these single-cabinet heating and cooling systems deliver the efficiency, comfort and dependability you expect from Lennox.

13GEP Packaged Gas/Electric Unit

The 13GEP packaged unit provides steady, comfortable temperatures throughout the year. It is powered by gas heating in the wintertime and electric cooling in the summer.

  • Efficiency ratings of 13.00 SEER*and 80% AFUE*** provide notable efficiency and comfort
  • Tubular heat exchanger for steadfast heat transfer and remarkable airflow control
  • Internally-mounted outdoor fan lessens operating soundand vibration
  • Dependable compressor precisely regulates air temperature and humidity
  • Easy-access control panel
  • Corrosion-resistant, pre-painted steel cabinet is built to last
  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered parts (this product may be eligible for valuable 10-year Limited Extended Warranty coverage)

13GEP Packaged Gas/Electric Unit
Efficiency Rating (SEER): 13
AFUE Rating: 80
Price Guide: $

13HPP Packaged Heat Pump

The 13HPP package heat pump removes heat from indoor air and moves it outdoors, making your home cool and comfortable. In the winter months, it works in reverse to keep your home pleasant. This packaged unit is perfect for homes in warmer regions, like Richardson.

  • Efficiency ratings of 13.00 SEER*and 7.7 HSPF** offer notable efficiency and comfort
  • Internally-mounted outdoor fan cuts down operating volumeand vibration
  • Dependable compressor strictly regulates air temperature and humidity
  • Easy-access control panel
  • Corrosion-resistant, pre-painted steel cabinet is built to endure
  • 5-Year Limited Warranty on covered parts (this product may be eligible for valuable 10-year Limited Extended Warranty coverage)

13HPP Packaged Heat Pump
Efficiency Rating (SEER): 13
HSPF Rating: 7.7
Price Guide: $

Schedule an appointment online with Hammack Service Company in Richardson to find out if a Merit series packaged system could work for you, or to have your existing unit serviced. You can also contact us by phone at 972-351-8874. We look forward to serving you!


* SEER, or Seasonal Energy Efficiency Ratio, measures the cooling efficiency of your air conditioner or heat pump. A higher SEER rating means greater energy efficiency and more savings for you and the environment.

** HSPF, or Heating Seasonal Performance Factor, measures the heating efficiency of your heat pump. A higher HSPF rating means greater energy efficiency, more savings and is better for the environment.

*** Annual Fuel Utilization Efficiency (AFUE) measures how efficient the appliance is in converting its fuel’s energy into heat over the course of a year.