What's two-stage and why does it matter in Texas?

Two-stage compressors run at low capacity (~65%) most of the time and ramp up only when needed. In Texas humidity, longer low-stage runtime means dramatically better dehumidification — the air feels cooler at the same temperature, and your AC doesn't 'short cycle' on mild days.

Is Carrier really better than Goodman or Trane?

Carrier, Trane, and Goodman are the three best-selling US HVAC brands and all make excellent equipment. We use Carrier in this tier because their two-stage 18 SEER2 platform offers the best feature-per-dollar in the mid-range — variable indoor blower, communicating compatibility, and exceptionally quiet outdoor units.

Why does this tier include ductwork sealing?

Most pre-2010 Texas homes have ductwork leaking 20-40% of conditioned air into the attic. Sealing those leaks during install means your new high-efficiency system actually delivers high efficiency — instead of conditioning your attic. We mastic-seal joints and use UL-181 tape on flex connections.

Can I get a smart thermostat with Stay Frosty?

Yes. The system is communicating-compatible — we install a Frosty Thermostat (smart, learning, app-controlled) at no extra charge. It's built to manufacturer communicating specs, so you get full two-stage control out of the box.

Carrier · 18 SEER2

What Makes the Stay Frosty Tier the Most Popular?

The sweet spot. Premium comfort without the luxury price.

Buy Stay Frosty →Compare All Tiers

Why Do Most Buyers Pick Stay Frosty?

Most Frosty's HVAC buyers pick Stay Frosty because it's the sweet-spot tier — a Carrier 18 SEER2 two-stage system installed for $12,000-$18,000 all-in with a 2-year labor warranty, delivering roughly 30% better efficiency and noticeably better humidity control than the entry tier for only about $4,000 more. I (Omar Jacobo) personally recommend it to friends and family because the price jump from Stay Cool usually pays itself back within 6-8 years through lower utility bills.

Carrier's 18 SEER2 two-stage platform is what I put in my own house in Farmers Branch. The two-stage compressor runs longer at low capacity, which dehumidifies better and feels cooler at the same thermostat setting. In Texas humidity, that comfort difference is enormous — you can set the thermostat 2-3°F warmer and feel just as cool, which compounds the energy savings documented on the DOE's central-AC page at energy.gov.

We include ductwork inspection and sealing on this tier because there's no point buying high-efficiency equipment and pumping conditioned air into a leaky attic. All refrigerant we charge is R-454B per the EPA AIM Act (epa.gov/climate-hfcs-reduction/aim-act), and every installer on this tier operates under our TDLR license TACLA126718E (verifiable at tdlr.texas.gov/verify.htm). Most installations recover 5-15% additional efficiency from duct work alone.

What's Included in Stay Frosty?

Every Stay Frosty installation from Frosty's HVAC includes the Carrier 18 SEER2 two-stage (quieter, more efficient) outdoor unit, matched indoor air handler, new line set, permit handling, equipment removal and disposal, warranty registration, and the 2-year labor warranty — all for $12,000 - $18,000 in Texas.

Every Stay Frosty install includes all equipment, labor, permit handling, and warranty registration below — priced all-in at $12,000 - $18,000. All equipment uses R-454B refrigerant per the EPA AIM Act and efficiency ratings follow DOE central-AC guidelines.

✓ Everything in Stay Cool
✓ Ductwork inspection + sealing
✓ 1st year Frosty Club Premium membership
✓ Smart thermostat compatible setup

Carrier · 18 SEER2 install detail

By Omar Jacobo — Owner & Lead HVAC Technician

Texas Licensed HVAC Contractor #TACLA126718E · EPA #2396328

Stay Frosty Questions

What Do Buyers Ask About Stay Frosty?

Stay Frosty buyers ask five questions most: why it's our most popular tier (~30% efficiency gain over Stay Cool for only $4K more), what two-stage means in Texas (runs at 65% most of the time for dramatically better dehumidification), whether Carrier is really better than Goodman/Trane (all excellent — we chose Carrier's 18 SEER2 platform for best feature-per-dollar), why ductwork sealing is included (most pre-2010 Texas homes leak 20-40% of conditioned air), and whether the smart Frosty Thermostat is included (yes, at no extra charge).

It's the best value in our lineup. Carrier 18 SEER2 two-stage equipment delivers ~30% efficiency gain over entry-level systems, runs noticeably quieter, and dehumidifies far better than single-stage units — for about $4K more than Stay Cool. Most buyers calculate the energy savings will offset the price difference within 6-8 years.