Carrier Infinity 98% AFUE Furnace (100K BTU, 21"W)
100K BTU · 98% AFUE · 21" Cabinet
Premium variable-speed gas furnace with Infinity control compatibility
Performance ratings
How this system measures up
Annual fuel-use efficiency rating
Heating capacity rated for your home's load
Physical footprint — matches most existing installs
System details
Technical specifications
Every Treat's install
What's included
Every system we install comes with the same commitment to quality and craftsmanship — no upcharges, no surprises.
- Licensed, registered & insured organization ($2M policy)
- Custom-built, air-tight, mastic-sealed ductwork transitions
- Air-tight plenum transitions for noise reduction & indoor health
- Caulk, patch & seal all new penetrations
- Floor savers and clean drop cloths in all work areas
- Completed start-up report meeting factory & Treat's standards
- Backed by Treat's 100% Satisfaction Guarantee
Why we recommend it
Features & highlights
What makes this premium system the right choice for your home.
- Variable-speed ECM blower motor delivers whisper-quiet operation and consistent airflow
- Modulating gas valve adjusts heat output in 1% increments to match your home's needs
- Compatible with the Carrier Infinity Wi-Fi thermostat for precise whole-home control
- Secondary heat exchanger and condensate drain line capture heat that older furnaces waste up the flue
- Backed by Carrier's 10-year parts limited warranty when registered
Compare tiers
Other options at this capacity
Not sure which tier is right for your home? Here's how this model stacks up against other Carrier options sized for the same load.
Carrier Performance 97% AFUE Furnace (100K BTU, 21.5"W)
100K BTU · 97% AFUE · 21.5" Cabinet
Carrier Comfort 96% AFUE Furnace (100K BTU, 21"W)
100K BTU · 96% AFUE · 21" Cabinet
Carrier Infinity 80% AFUE Furnace (90K BTU, 17.5"W)
90K BTU · 80% AFUE · 17.5" Cabinet
Ready for a free in-home estimate?
Our NATE-certified team will evaluate your home's heating and cooling needs, confirm rebate eligibility, and build a quote tailored to you — no obligation.