Goodman is one of the largest manufacturers of residential and light commercial air conditioning, heating and indoor air-quality products. For home heating, it offers a line of single- and two-stage models that qualify for Energy Star ratings. Half of the models offer energy efficiency of 96 percent AFUE and higher. The company also has Energy Star modulating models that operate at or above 97 percent AFUE. With a selection of varying energy-efficient models, Goodman has an optimal furnace to heat up your home.

Of the gas furnaces the company offers, only some of the two-stage and modulating furnaces qualify for Energy Star ratings. The single-stage models range from 80 percent efficiency to 96 percent AFUE. In case you are looking for low upfront costs, these models provide small homes with significant savings.

The two-stage models range from 80 percent AFUE to 96 percent AFUE. Only the most energy-efficient gas furnaces incorporate variable-speed blowers. These models reduce the amount of energy expended transporting heat through the ventilation system.

Goodman offers substantial warranties for its forced air heating systems. Unregistered, the warranty lasts up to 20 years for the heat exchanger on most models and five years for the parts. To receive full coverage, you must register your gas furnace within 60 days after installation. The warranty covers the heat exchanger for the lifetime of the registered owner, and up to 10 years for all the other parts.

Whether you register your furnace or not, you do not have to stress about the furnace malfunctioning because of defective parts. The warranty applies to new owners if you sell your home; however, it may change based on the circumstances, which are detailed in your warranty plan.

The GMVM97 is the best gas furnace in Goodman's gas furnace lineup. This modulating furnace has an AFUE rating of up to 98 percent and is backed by Energy Star. It has a self-calibrating modulating gas valve that is automatically configured. With a variable-speed airflow system and multiple fan speed options, the furnace runs quietly when it is starting up or shutting down. This air circulator also helps by dehumidifying during the muggy summer months. This gas furnace saves you money on your heating bill and efficiently heats up your home.

The GCSS96 uses a single-stage gas valve to heat up your home. This furnace has an AFUE rating of up to 96 percent, making it an energy-efficient option, although this particular unit is not certified by Energy Star. With a quiet single-speed draft blower, this furnace heats your home without disrupting what you are doing. It serves as an affordable option with lower upfront costs while still maintaining energy efficiency to lower your monthly energy bill.

Goodman's GMVC8 gas furnace offers low upfront costs. It is one of the best 80 percent AFUE gas furnaces that Goodman offers. If you do not need the efficiency provided by a 90 percent or higher AFUE furnace, than the GMVC8 is a good option. It has an efficient and quiet variable-speed motor that quickly heats up your home, as well as an auto-comfort mode that dehumidifies your home to your desired level.

Goodman offers a wide range of quality and energy-efficient heating systems. Whether you are looking for a single-stage, two-stage or modulating furnace, you have your choice of multiple models from this brand. With Goodman's robust warranties for its units, you get peace of mind that you can heat up your home in an energy-efficient manner with a dependable machine.

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