Ducted systems, efficiency tiers and controls. Use this page to normalize competing proposals without assuming one brand or product line fits every home.
Manufacturer information reviewed August 11, 2026. These are product-family orientations—not prices, stock, rankings or proof that a quoted combination is certified.
Lennox organizes central equipment into product collections with variable-capacity, staged and single-stage choices depending on model.
Exact outdoor/indoor combination, SEER2/HSPF2, refrigerant, sound and compatible control.
The current catalog includes variable-capacity, two-stage and other furnace configurations across multiple efficiency levels.
Model-specific AFUE, gas valve, blower motor, venting category, emissions variant and warranty.
Product names, availability and specifications can change. Confirm the exact model and latest dated document before signing.
Do not compare a premium matched system against an entry-level equipment-only price as if the scopes were equal.
Record indoor and outdoor model numbers, capacity and matched-system references.
Separate equipment from labor, permits, electrical work, controls, accessories and commissioning.
Compare the metric and test basis appropriate to the system, including SEER2, EER2, HSPF2, AFUE, UEF or solar production assumptions.
Separate manufacturer parts coverage, registration requirements and contractor labor coverage.
Confirm qualified installation, service coverage, parts access and escalation routes in your area.
Compare cash and financed price, energy, maintenance and likely repairs over 5 and 10 years.
Manufacturer coverage and contractor labor responsibility are different commitments.
Which exact Lennox model numbers and matched components are included, and where are their current performance certificates?
Which parts of the Lennox warranty require registration, qualified installation or documented maintenance, and who completes them?
Who provides labor coverage, routine service and parts support locally if the system needs attention after installation?
Start with home fit and installation scope, then evaluate exact models.
Verify current product data, contractor scope and five- or ten-year ownership assumptions.