Aire-Flo HVAC Age Lookup Tool
Decode your Aire-Flo serial number to find the manufacturing date, system age, and maintenance recommendations. Free and instant. No account needed.

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Get QuotesAre you an HVAC contractor? Learn about our partner programFinding Your Aire-Flo Serial Number
Check these four spots on your HVAC system
Common Locations
What to Look For
- White or metallic manufacturer sticker
- Labeled "Serial No." or "S/N"
- Typically 8–12 characters long
- Usually near the model number
Can't find it? Try the electrical access panel on the front of the outdoor unit or inside the air handler cabinet.
Serial Number Examples
Don't worry if yours looks different — each brand has multiple formats and our system can decode most variations.
About Aire-Flo HVAC Systems
Owned by Lennox International
Aire-Flo is Lennox International's lowest-price residential brand, part of the same Allied Air Enterprises group as AirEase and Armstrong Air. The equipment is basic by design, aimed at replacement jobs where budget is the primary concern and efficiency ratings matter less.
Allied builds it at the same Iowa facility using Lennox engineering specs, so the mechanical reliability is solid despite the lower price point. Serial numbers use the same format as all Allied and Lennox brands: four digits at the start encoding the manufacturing week and year.
Common Aire-Flo HVAC Models & Series
The most-installed Aire-Flo residential systems on the market today, organized by tier. Knowing your series helps narrow down service parts and warranty terms.
| Series | Type | Tier | Efficiency | Notes |
|---|---|---|---|---|
| 4AC16L Air Conditioner | Air Conditioner | Mid-range | Up to 16 SEER2 | Single-stage scroll; Aire-Flo's higher-tier outdoor unit. |
| 4AC14L / 4AC13L | Air Conditioner | Entry | Up to 14.3 SEER2 | Single-stage; the volume builder unit. |
| 4HP16L / 4HP14L Heat Pump | Heat Pump | Entry | Up to 14.3 SEER2 / 8.1 HSPF2 | Single-stage heat pump for moderate climates. |
| 92G1UH Gas Furnace | Gas Furnace | Mid-range | Up to 92 AFUE | Single-stage condensing furnace; balances cost and efficiency. |
| 80G1UH Gas Furnace | Gas Furnace | Entry | Up to 80 AFUE | Single-stage 80% furnace for mild climates. |
Aire-Flo HVAC Quick Facts
Warranty
Aire-Flo equipment carries a 10-year parts warranty and 10-year compressor warranty when registered within 60 days. Without registration, parts coverage drops to 5 years. Heat exchangers on condensing furnaces typically include a 20-year limited warranty.
Expected Lifespan
AC / Heat pumps: 12 to 17 years
Furnaces: 15 to 22 years
Where It's Built
Orangeburg, South Carolina (Allied Air Enterprises plant) — the same facility that builds AirEase, Armstrong Air, Concord, and Ducane.
Price Positioning
Budget tier — typically the lowest-priced Allied brand, often 30-40% less than Lennox-branded equivalents at install.
Known Aire-Flo Issues to Watch For
A short list of patterns reported on Aire-Flo equipment. Most have been addressed with revised designs or service bulletins, but they're useful context if you're diagnosing an older system.
- •Aire-Flo's entry-tier price comes from leaner sheet-metal construction; coastal installs are more prone to base-pan corrosion than higher-tier Allied or Lennox units.
- •No communicating-thermostat ecosystem; pairs only with conventional 24V thermostats, which limits zoning and staging features.
- •Dealer network is smaller than other Allied brands, so warranty service responsiveness depends heavily on the local distributor.
Aire-Flo HVAC FAQs
Related HVAC Brands
Aire-Flo shares a parent company with these brands -- they often use similar serial number formats and components.
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