Air Conditioner + Furnace Systems

An air conditioner and furnace system is the classic split system for most of the country: a Goodman air conditioner outdoors, and indoors a gas furnace whose blower moves the air year-round with a matched evaporator coil set on top of it. Gas heat in winter, electric cooling in summer, one duct system. This is the largest group of complete systems we stock, in every tonnage from 1.5 to 5 and in 80%, 92%, 96% and 97% AFUE furnace efficiencies.

Every AC and gas furnace system on this page is sold as an AHRI-certified matched pair — the components are factory-rated together, so the efficiency on the label is the efficiency you get — and ships free from our Winder, Georgia warehouse. 3,082 combinations are listed; the quickest way through them is by size.

Air Conditioner + Furnace Systems by size

1.5 ton AC and gas furnace systems

A 1.5-ton system delivers 18,000 BTU/h of cooling — roughly 600 to 900 square feet in a moderate climate as a rule of thumb, before a load calculation. 507 1.5-ton combinations are in stock; typical starting points: Goodman 1.5 Ton 13.8 SEER2 AC + 40k 80% furnace · Goodman 1.5 Ton 15.2 SEER2 AC + 40k 80% furnace · Goodman 1.5 Ton 13.8 SEER2 AC + 40k 96% furnace · Goodman 1.5 Ton 15.2 SEER2 AC + 40k 96% furnace.

2 ton AC and gas furnace systems

A 2-ton system delivers 24,000 BTU/h of cooling — roughly 900 to 1,200 square feet in a moderate climate as a rule of thumb, before a load calculation. 643 2-ton combinations are in stock; typical starting points: Goodman 2 Ton 13.5 SEER2 AC + 40k 80% furnace · Goodman 2 Ton 15.2 SEER2 AC + 60k 80% furnace · Goodman 2 Ton 13.8 SEER2 AC + 40k 96% furnace · Goodman 2 Ton 15.2 SEER2 AC + 60k 96% furnace.

2.5 ton AC and gas furnace systems

A 2.5-ton system delivers 30,000 BTU/h of cooling — roughly 1,200 to 1,500 square feet in a moderate climate as a rule of thumb, before a load calculation. 751 2.5-ton combinations are in stock; typical starting points: Goodman 2.5 Ton 13.6 SEER2 AC + 40k 80% furnace · Goodman 2.5 Ton 15.2 SEER2 AC + 60k 80% furnace · Goodman 2.5 Ton 13.8 SEER2 AC + 60k 96% furnace · Goodman 2.5 Ton 15.2 SEER2 AC + 60k 96% furnace.

3 ton AC and gas furnace systems

A 3-ton system delivers 36,000 BTU/h of cooling — roughly 1,500 to 1,800 square feet in a moderate climate as a rule of thumb, before a load calculation. 596 3-ton combinations are in stock; typical starting points: Goodman 3 Ton 13.8 SEER2 AC + 60k 80% furnace · Goodman 3 Ton 15.2 SEER2 AC + 60k 80% furnace · Goodman 3 Ton 13.8 SEER2 AC + 60k 96% furnace · Goodman 3 Ton 15.2 SEER2 AC + 80k 96% furnace.

3.5 ton AC and gas furnace systems

A 3.5-ton system delivers 42,000 BTU/h of cooling — roughly 1,800 to 2,100 square feet in a moderate climate as a rule of thumb, before a load calculation. 322 3.5-ton combinations are in stock; typical starting points: Goodman 3.5 Ton 13.8 SEER2 AC + 80k 80% furnace · Goodman 3.5 Ton 15.2 SEER2 AC + 80k 80% furnace · Goodman 3.5 Ton 13.4 SEER2 AC + 80k 96% furnace · Goodman 3.5 Ton 15.2 SEER2 AC + 80k 96% furnace.

4 ton AC and gas furnace systems

A 4-ton system delivers 48,000 BTU/h of cooling — roughly 2,100 to 2,400 square feet in a moderate climate as a rule of thumb, before a load calculation. 180 4-ton combinations are in stock; typical starting points: Goodman 4 Ton 13.4 SEER2 AC + 80k 80% furnace · Goodman 4 Ton 15.2 SEER2 AC + 80k 80% furnace · Goodman 4 Ton 13.4 SEER2 AC + 80k 96% furnace · Goodman 4 Ton 15.2 SEER2 AC + 80k 96% furnace.

5 ton AC and gas furnace systems

A 5-ton system delivers 60,000 BTU/h of cooling — roughly 2,400 to 3,000 square feet in a moderate climate as a rule of thumb, before a load calculation. 83 5-ton combinations are in stock; typical starting points: Goodman 5 Ton 13.6 SEER2 AC + 80k 80% furnace · Goodman 5 Ton 16 SEER2 AC + 80k 80% furnace · Goodman 5 Ton 13.4 SEER2 AC + 80k 96% furnace · Goodman 5 Ton 15.5 SEER2 AC + 80k 96% furnace.

How to choose a AC and gas furnace system

• Tonnage from a load calculation — use our sizing tool as a starting point.
• Furnace input and AFUE: 80%, 92%, 96%, 97% AFUE furnaces are offered here. An 80% furnace vents through a metal flue; 92% and above vents in PVC and needs a condensate drain.
• Furnace orientation — upflow, downflow or horizontal — and cabinet width against the coil.
• Stages and blower: two-stage or modulating furnaces with variable-speed blowers run quieter and even out room-to-room temperatures.
• SEER2: 13.4 to 16 SEER2 across this group.

What ships with a complete system

The components listed on each product page — the outdoor unit, the indoor coil, air handler or furnace — and nothing else. Line set, thermostat, equipment pad, disconnect and any electric heat kit are sold separately, and installation is licensed-contractor work (R-32 is an A2L refrigerant). Goodman residential equipment carries a 10-Year Parts Limited Warranty when registered within 60 days of installation. Not sure which combination fits your house? Call (877) 843-4822 and we will check the load, the duct layout and the accessories before you order. Financing through Affirm is available at checkout, and you can read what customers say on our reviews page.

Related system types

Air Conditioner + Air Handler Systems · Air Conditioner + Coil Systems · Heat Pump + Air Handler Systems · Heat Pump + Furnace Systems · all Goodman equipment

Air Conditioner + Furnace Systems FAQ

80% or 96% furnace?

In long heating seasons the 96% pays back quickly; in the Deep South an 80% furnace with a metal flue is often the practical choice. Both are offered in every tonnage here.

Is the SEER2 on the system the same as the condenser?

No — the system rating is the AHRI-tested result for this exact pairing and is usually higher than the condenser rated alone. That is why the matched set matters.