An AC and furnace system is the most common HVAC setup in American homes: a gas furnace handles winter heating while a central air conditioner handles summer cooling, both sharing the same duct system and air handler. Buying them as a matched system — condenser, coil, and furnace from the same manufacturer, sized to work together — ensures compatibility, maximizes efficiency, and protects the full manufacturer warranty on every component.
We carry matched AC and furnace systems from Goodman and Wrangler in 1.5 to 5 ton capacities, paired with furnaces across all major efficiency tiers. Every system ships factory-direct to all 48 contiguous states with no local distributor markup.
What's Included in a Matched System
Each system in this collection ships as a complete set of matched components: the outdoor condenser (the AC unit that sits outside), the evaporator coil (the indoor coil that sits on top of the furnace and does the actual cooling work), and the gas furnace (which handles heating and houses the blower that moves air through both systems year-round). All three components are factory-matched to work together at the rated SEER2 and AFUE. Mismatching components from different manufacturers or model families is a common DIY mistake that can void warranties and reduce real-world efficiency — buying a matched system eliminates that risk entirely.
Choosing Your Cooling Efficiency — SEER2
SEER2 (Seasonal Energy Efficiency Ratio 2) measures cooling efficiency. The higher the number, the less electricity the system uses to produce the same amount of cooling. Our systems range from 13.4 SEER2 at the entry level up to 17.2 SEER2 in high-efficiency configurations.
13.4–14.3 SEER2 meets current federal minimum standards and is the right choice when upfront cost is the primary concern or when the cooling season is short. Reliable, widely serviceable, and straightforward to install.
15.2–16.5 SEER2 is the mid-efficiency sweet spot for most homeowners in warm climates. The efficiency gain over a minimum-efficiency unit pays back meaningfully over a 10–15 year equipment life in markets where the AC runs four to six months a year. Goodman's R-32 systems land in this tier.
17.2 SEER2 and above is the high-efficiency tier, typically featuring variable-speed inverter-driven compressors that modulate output to match actual cooling load rather than cycling on and off at full capacity. These systems are noticeably quieter, maintain more consistent indoor temperatures, and deliver better humidity control than single-stage units — on top of the lower operating cost. Best fit for homeowners in hot, humid climates with long cooling seasons and higher-than-average utility rates.
Choosing Your Heating Efficiency — AFUE
AFUE (Annual Fuel Utilization Efficiency) measures how much of the gas you burn actually becomes heat in your home. The rest exits as exhaust. The furnace tier you choose has a bigger impact on annual operating cost than almost any other decision in this purchase.
80% AFUE — The federal minimum for most of the country. For every dollar of gas burned, 80 cents becomes heat and 20 cents exits as flue exhaust. Uses a conventional metal flue — the same single-pipe venting as most older furnaces, making it a clean drop-in replacement in most homes. Best choice for mild climates, budget-focused projects, or homes where the furnace runs fewer than 500 hours per heating season.
92% AFUE — A meaningful efficiency upgrade that still uses conventional metal flue venting, so there's no added venting cost or complexity versus an 80% replacement. At this tier, Goodman's furnaces typically include multi-speed ECM blower motors and two-stage gas valves, which means the furnace modulates between a lower and higher firing rate based on demand — running quietly on low fire most of the time and ramping up only when needed. The result is more even temperatures, better humidity control in shoulder seasons, and noticeably quieter operation compared to a single-stage 80% unit.
96%+ AFUE — Condensing — High-efficiency condensing furnaces extract so much heat from combustion gases that the exhaust cools to the point of condensation before it exits the building. This is why they vent through PVC pipe (typically two pipes — one intake, one exhaust) rather than a metal flue. If you're replacing an 80% or 92% unit, plan for new PVC vent runs as part of the installation. The efficiency gain is real and substantial: in a cold climate running 1,500+ heating hours per season, upgrading from 80% to 96% AFUE on a 100,000 BTU furnace saves roughly $200–$350 per year in gas costs at current rates, depending on your market. Variable-speed ECM blower motors are standard at this tier. Most models qualify for utility rebates and may be eligible for federal tax credits.
About R-32 Refrigerant
All Goodman and Wrangler systems in this collection use R-32 refrigerant — the next-generation replacement for R-410A. R-32 has a global warming potential roughly 70% lower than R-410A, which is why Goodman, Daikin, and other major manufacturers have transitioned their residential lines to it. From a performance standpoint, R-32 operates at similar pressures to R-410A and requires the same recovery and handling equipment with EPA 608 certification. It is not a drop-in replacement for R-410A — new systems use new refrigerant, which is relevant for service technicians to know upfront.
Sizing Your System
Correct sizing is the most important decision in this purchase. An undersized system runs constantly and can't maintain setpoint on the hottest or coldest days. An oversized system short-cycles — turning on and off frequently — which causes uneven temperatures, poor humidity control, excess wear on the compressor, and higher energy bills than a properly sized unit would produce.
As a starting estimate: 1.5 ton for homes up to 900 sq ft, 2 ton for 900–1,200 sq ft, 2.5 ton for 1,200–1,500 sq ft, 3 ton for 1,500–2,000 sq ft, 4 ton for 2,000–2,500 sq ft, and 5 ton for 2,500–3,200 sq ft. These are rough guidelines — actual sizing depends on your climate zone, insulation level, ceiling height, window area, and duct condition. A Manual J load calculation gives the precise answer. If you're not sure, call us before you order at 678-535-7176 and we'll help you work through it.
Why Buy a Matched System vs. Components Separately
Local HVAC contractors often quote a fully installed system at two to three times the equipment cost alone. Buying the equipment here and having a local contractor install it is a straightforward way to cut that gap — you pay for labor and any consumables, not a markup on equipment that passed through a distributor and then a contractor before reaching your home. Every system we sell is brand new, factory-direct, and ships with full manufacturer warranty. Goodman's registered warranty is 10 years on all parts when the equipment is registered within 60 days of installation.
Questions about compatibility, sizing, or which efficiency tier fits your situation? Call 678-535-7176 — we're here Monday through Friday, 9am–5pm ET. Contractor and volume pricing available through our B2B program.
