Lennox HVAC Learning Center Chicago | D's Air & Heating
Lennox Education Hub
Don't “FREEZE” — Call D's...Lennox Air Conditioners
From the Merit ML13KC1 to the Dave Lennox Signature SL25KCV, Lennox offers Chicago homeowners industry-leading efficiency from 13.4 to 26 SEER2 with variable-capacity comfort control.
Lennox Education Hub
Don't “FREEZE” — Call D's...Lennox Gas Furnaces
Lennox furnaces range from the 80% AFUE ML180E to the 99% AFUE SLP99V with variable-speed modulating technology — delivering precise, quiet, and efficient heating for Chicago winters.
Lennox Education Hub
Don't “FREEZE” — Call D's...Lennox Heat Pumps
Lennox heat pumps deliver year-round heating and cooling efficiency. The Elite EL21KLV reaches 21 SEER2 with variable-speed operation, while the Merit ML14KP1 offers dependable entry-level performance.
Lennox Education Hub
Don't “FREEZE” — Call D's...Lennox Indoor Air Quality
Lennox Healthy Climate® products include the PureAir™ purification system, whole-home humidifiers, HRV/ERV ventilators, and the Carbon Clean 16® media air cleaner — for cleaner, healthier Chicago home air.
About Lennox HVAC Equipment
Lennox is a premium HVAC brand known for the Dave Lennox Signature Collection, Elite Series, and Merit Series product lines. As an authorized Lennox Premier Dealer in Chicago, D's Air & Heating installs and services the complete Lennox lineup — from the SLP99V 99% AFUE variable-speed furnace to the SL25KCV 26 SEER2 air conditioner, the most efficient residential AC available.
Articles & Guides
Installation Articles
How to Choose a Lennox Furnace for a Chicago Home
Compare Lennox SLP99V, SL280V, EL296V, ML296V, and ML180E furnaces by efficiency, features, and installed cost.
Lennox Air Conditioner Installation in Chicago
What to expect during a Lennox AC installation — load calculation, equipment sizing, and startup.
Lennox Heat Pump Installation Guide
How Lennox heat pumps work in Chicago winters and what the installation process involves.
Lennox Air Handler Installation Chicago
Lennox air handler installation — matching the right air handler to your furnace or heat pump.
Buying Guides
Lennox Dave Lennox Signature vs Elite vs Merit Series
Side-by-side comparison of all three Lennox furnace tiers — efficiency, features, and value.
Lennox Heat Pump Buying Guide for Chicago
How to choose the right Lennox heat pump for Chicago's climate — SEER2, HSPF2, and cold-climate ratings.
Lennox IAQ Buying Guide
PureAir, Carbon Clean 16, HRV, ERV — how to choose the right Lennox indoor air quality products.
Maintenance Articles
Lennox Equipment Financing
D's Air & Heating offers financing options for qualified customers on all Lennox equipment installations. Ask about current offers when you schedule your free estimate.
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