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Frequently Asked Questions
What is a packaged gas and electric HVAC unit?
A packaged gas/electric HVAC unit combines electric air conditioning and natural gas heating into one outdoor cabinet. It includes the compressor, condenser, evaporator coil, blower and gas furnace.
How does a gas/electric package unit work?
During cooling, the unit uses an electrically powered refrigeration system to remove indoor heat. During heating, its natural gas furnace generates heat and distributes warm air through the ductwork.
What is the difference between a packaged gas/electric unit and a split system?
A packaged gas/electric unit contains the major heating and cooling components in one outdoor cabinet. A typical split system separates the outdoor condenser from an indoor furnace or air handler.
Are packaged gas/electric HVAC units energy efficient?
Packaged gas/electric systems are available with different SEER2, EER2 and AFUE ratings. Efficiency varies by exact model. Always verify that the selected unit meets applicable federal, regional and local requirements.
What is the SEER2 rating of a Goodman packaged gas/electric unit?
Goodman's GPGM3 R-32 packaged gas/electric series includes models with published 13.4 SEER2 cooling efficiency. Other series and models may have different efficiency ratings.
What is AFUE on a packaged gas/electric system?
AFUE stands for Annual Fuel Utilization Efficiency. It measures the seasonal efficiency of a gas heating system. Goodman's GPGM3 series is published with 81 percent AFUE.
Can a packaged gas/electric unit be installed on a roof?
Yes. Many packaged gas/electric units support rooftop installations when mounted on an approved roof curb with proper duct transitions, service clearances, structural support and code-compliant anchoring.
Can packaged gas/electric units be installed on the ground?
Many models allow ground-level installation on an approved equipment pad. Installation depends on manufacturer instructions, site conditions, drainage, airflow clearances and applicable codes.
What sizes are packaged gas/electric HVAC units available in?
Residential Goodman packaged gas/electric equipment is commonly available from approximately 2 through 5 tons, depending on the series. Actual cooling capacity and gas heating input vary by model.
What refrigerant do new Goodman gas/electric package units use?
Goodman's GPGM3 packaged gas/electric units use R-32 refrigerant. Other equipment generations may use different refrigerants, so verify the exact model specifications.
What does Low NOx mean on a gas package unit?
Low NOx means the gas combustion system is designed to reduce nitrogen oxide emissions. Emissions requirements vary by location, and a Low NOx unit may not satisfy jurisdictions requiring Ultra-Low NOx equipment.
What is the difference between Low NOx and Ultra-Low NOx?
Ultra-Low NOx equipment is designed to meet stricter nitrogen oxide emissions limits than conventional Low NOx equipment. The required classification depends on the local air-quality district and applicable regulations.
Are all packaged gas/electric units approved for installation in California?
No. Certain California air-quality districts restrict gas equipment based on nitrogen oxide emissions. Verify the exact model and the installation address before purchasing.
Can a packaged gas/electric unit be installed in Florida?
Qualifying packaged gas/electric units can be installed in Florida when they meet applicable DOE efficiency requirements, Florida building and mechanical codes, wind-load requirements and local installation rules. Eligibility must be verified for the exact model.
Do packaged gas/electric units have different DOE efficiency requirements by region?
DOE efficiency requirements depend on the equipment category and applicable regulations. Single-package equipment follows its own standards and should not automatically be evaluated using regional requirements for split-system air conditioners.
What is the difference between a gas/electric package unit and a packaged heat pump?
A packaged gas/electric unit uses natural gas combustion for heating and an electric refrigeration system for cooling. A packaged heat pump uses a reversible refrigeration cycle for heating and cooling, although some dual-fuel configurations also include gas heating.
Do packaged gas/electric units need a separate air handler?
No. A conventional packaged gas/electric system includes its own indoor airflow blower, evaporator coil and gas heating section within the outdoor equipment cabinet.
Can a natural gas packaged unit be converted to propane?
Some models can be converted using a manufacturer-approved propane conversion kit. The specific conversion kit and installation requirements must be verified for the exact equipment model.
How do I choose the correct packaged gas/electric unit?
Consider the building's heating and cooling load, equipment capacity, fuel requirements, efficiency ratings, emissions rules, duct configuration, roof curb dimensions and electrical service. A qualified HVAC contractor should confirm equipment sizing and installation suitability.
Does EZ Plenum sell packaged gas/electric HVAC units?
EZ Plenum offers packaged gas/electric HVAC equipment, including qualifying Goodman models. Product availability, specifications, shipping requirements and installation eligibility depend on the selected model.