Chicago's Authorized Lennox dealer Since 2010 | D's Air & Heating
D's Air & Heating is an Authorized Lennox dealer serving Chicago since 2010, providing expert Lennox installation, repair, maintenance, and replacement services throughout Chicago and the surrounding communities.
Lennox Smart Thermostats
& Comfort Controls
From the fully communicating S40 to the affordable M30, Lennox thermostats give you precise control over your Chicago home's comfort and energy use.
IL License #2183457 · D's Air & Heating, Inc. · Chicago, IL · No Contracts
Lennox S40 Smart Thermostat
Fully communicating thermostat with IAQ and zoning integration
$350
The Lennox S40 is the flagship communicating thermostat for Lennox iComfort systems. It integrates heating, cooling, indoor air quality, humidity control, and zoning into a single color touchscreen — giving you complete control over your home's comfort from one device or your phone.
- Fully communicating — integrates with Lennox iComfort systems
- Controls heating, cooling, IAQ, humidity, and ventilation from one screen
- Smart Zoning compatible for multi-zone comfort
- Wi-Fi enabled with Lennox Home App remote access
- Alexa and Google Home voice control
- Energy use reports and smart scheduling
Lennox E30 Smart Thermostat
Wi-Fi smart thermostat with smart home integration
$250
The Lennox E30 is a Wi-Fi smart thermostat that works with most Lennox and conventional HVAC systems. It delivers smart home integration, remote access via the Lennox Home App, and voice control — without requiring a fully communicating system.
- Wi-Fi enabled with Lennox Home App remote access
- Compatible with most Lennox and conventional HVAC systems
- Alexa and Google Home voice control
- Color touchscreen with intuitive interface
- Smart scheduling and energy reports
- More affordable than the S40 for non-communicating systems
Lennox M30 Smart Thermostat
Affordable Wi-Fi thermostat for conventional systems
$180
The Lennox M30 is the most affordable Wi-Fi thermostat in the Lennox lineup. It's the right choice for Chicago homeowners who want smart thermostat convenience — remote access, voice control, and scheduling — without the cost of communicating system features.
- Affordable Wi-Fi thermostat for conventional HVAC systems
- Remote access via Lennox Home App
- Alexa and Google Home compatible
- Color touchscreen display
- Smart scheduling and energy tracking
- Best value for standard single-zone systems
Lennox L Series Thermostats
Simple programmable thermostats for conventional systems
$80
The Lennox L Series thermostats are simple, reliable programmable controls for conventional HVAC systems. They're the right choice when you want dependable scheduling without smart home features — straightforward, easy to use, and built to last.
- Simple, reliable programmable thermostat
- 7-day programming for set-and-forget scheduling
- Compatible with most conventional HVAC systems
- Easy-to-read LCD display
- No Wi-Fi or app required
- Most affordable Lennox thermostat option
Sensors & Accessories
Smart Room Sensor
Monitors temperature and occupancy in individual rooms for smarter zoning and comfort
Air Quality Monitor
Tracks indoor air quality metrics and integrates with PureAir S and ventilation systems
EIM Module
Equipment Interface Module for connecting non-communicating equipment to iComfort systems
Ready to Upgrade Your Thermostat?
D's Air & Heating, Inc. · (773) 940-0965 · dsairheating@gmail.com · IL License #2183457
Why Chicago Homeowners Trust D's Air & Heating
Licensed & Insured
IL License #2183457
Serving Chicago
Since 2009
Authorized Dealer
Multiple Brands
No Contracts
Ever — Guaranteed
Permit Pulled
Every Installation
Professional Standards
Code-Compliant Work
EPA Certified
Mainstream Engineering
R-410A Certified
Mainstream Engineering
Why Choose D's Air & Heating, Inc.?
Chicago's trusted HVAC company since 2009 — licensed, insured, and committed to honest workmanship on every job.
Experience Since 2009
D's Air & Heating has served Chicago homeowners and businesses since 2009. Over 15 years of local HVAC experience means we've seen every type of system, every Chicago building configuration, and every challenge the city's climate presents.
Manufacturer-Trained Technicians
Our technicians receive ongoing manufacturer training and certification. We install Lennox, Goodman, Amana, Daikin, Sinclair, Weil-McLain, Peerless, and other leading brands — and we know each system inside and out.
Licensed, Insured & Permitted
D's Air & Heating holds Illinois HVAC License #2183457 and carries full liability insurance. We pull City of Chicago permits on every installation — protecting you legally and ensuring the work meets code.
Honest Recommendations
We tell you what you need — not what generates the highest invoice. If your system can be repaired cost-effectively, we'll say so. If replacement makes more sense, we'll explain exactly why. No pressure, no upselling.
Local Chicago Expertise
We know Chicago's housing stock — two-flats, greystones, bungalows, vintage buildings with steam heat, modern construction with forced air. We size and install equipment for the specific demands of Chicago homes and Chicago winters.
Long-Term Customer Support
Our relationship doesn't end at installation. We register your equipment for warranty, remain available for follow-up questions, and provide ongoing maintenance to keep your system running at peak efficiency for years.
Indoor Air Quality in Chicago — What Homeowners Should Know
Why Indoor Air Quality Matters
The EPA estimates that indoor air is 2–5 times more polluted than outdoor air. Chicago homes — especially older buildings with limited ventilation — accumulate dust, allergens, volatile organic compounds (VOCs), combustion byproducts, and biological contaminants. Modern HVAC systems can address all of these with the right equipment.
Air Filtration — MERV Ratings Explained
MERV (Minimum Efficiency Reporting Value) rates how effectively a filter captures particles. Standard 1-inch filters are MERV 1–4 and capture only large particles. MERV 8 filters capture most dust and pollen. MERV 13 filters capture fine particles including bacteria and smoke. High-efficiency media filters (MERV 13–16) provide hospital-grade filtration without restricting airflow.
Humidity Control
Chicago winters are extremely dry — indoor relative humidity can drop below 20% when it's cold outside. Low humidity causes dry skin, static electricity, wood shrinkage, and increased susceptibility to respiratory infections. A whole-home humidifier connected to your HVAC system maintains 35–45% relative humidity automatically. In summer, a whole-home dehumidifier prevents mold growth and improves comfort.
UV Air Purification
UV-C light systems installed in the air handler kill bacteria, viruses, and mold spores as air passes through. Lennox PureAir and similar systems combine UV-C with activated carbon filtration to address both biological contaminants and chemical pollutants (VOCs, odors). These systems are particularly valuable for households with allergy or asthma sufferers.
What to Expect From Your D's Air IAQ Installation
Assessment
We evaluate your current system, identify IAQ concerns, and recommend targeted solutions.
Equipment Selection
We recommend the right combination of filtration, humidification, and purification for your home.
Installation
Our technicians install IAQ equipment integrated with your existing HVAC system.
Airflow Verification
We measure static pressure and airflow after installation to confirm the system is not restricted.
Customer Training
We walk you through filter replacement schedules, humidity settings, and UV lamp replacement intervals.
Follow-Up
We remain available for questions and annual maintenance of your IAQ equipment.
D's Air IAQ Installation Standards
- IAQ assessment — identify specific pollutants and sources
- Filter upgrade recommendation based on system airflow capacity
- Humidifier sized to building volume and infiltration rate
- UV system positioned for maximum exposure of air stream
- ERV/HRV sized for building volume and occupancy
- All IAQ equipment integrated with existing HVAC controls
- Airflow verified after any filter upgrade — static pressure checked
- Equipment registered for full manufacturer warranty
What Our Customers Say
Based on Google Reviews — D's Air & Heating, Inc.
Marcus T.
Furnace Replacement
"D's Air & Heating did an outstanding job replacing my furnace. Darryl was professional, on time, and explained everything clearly. The installation was clean and the system works perfectly. Highly recommend."
Latoya W.
Boiler Repair
"Called D's Air when my boiler stopped working in January. They came out the same day, diagnosed the problem quickly, and had it running again within hours. Fair pricing and excellent service."
James R.
AC Installation
"Installed a new central AC system for us this summer. The crew was respectful of our home, cleaned up after themselves, and the system runs quietly and efficiently. Very satisfied."
Ready to Work With Chicago's Trusted HVAC Company?
D's Air & Heating, Inc. — Serving Chicago Since 2009. Licensed, Insured, No Contracts.
Why Choose Lennox?
D's Air & Heating is an Authorized Lennox dealer — Serving Chicago Since 2010.
Lennox products are recognized for advanced technology, quiet operation, exceptional efficiency ratings, and dependable performance in Chicago's demanding climate. Lennox systems are engineered for long-term reliability, comfort, and energy savings.
Why Choose D's Air & Heating?
D's Air & Heating is an Authorized Lennox dealer — Serving Chicago Since 2010.
Since 2010, our company has helped Chicago homeowners and businesses install and service Lennox equipment. We provide expert sizing, installation, startup, testing, maintenance, and long-term support for every Lennox product we install.
Lennox Smart Thermostats Features
- Precise temperature and humidity control
- Smart home and app compatibility
- Energy-saving scheduling and learning
- Compatible with Lennox iComfort systems
- Easy-to-read touchscreen display
- Remote access and monitoring
- Works with all major HVAC systems
Professional Lennox Installation
Every installation includes equipment evaluation, proper system sizing, removal of existing equipment, professional installation, safety testing, airflow verification, and system commissioning to manufacturer standards. City of Chicago mechanical permits included on every installation.
Financing & Warranties
D's Air & Heating offers flexible financing options for qualified customers on all Lennox equipment installations. Ask about current Lennox rebates, manufacturer promotions, and seasonal offers available through our dealership.
- Lennox 10-Year Limited Parts Warranty — registered at installation
- Lennox 20-Year Heat Exchanger Warranty (select furnace models)
- 2-Year D's Air & Heating Workmanship Warranty
- Financing available for qualified customers — ask about current offers
- Current Lennox rebates and manufacturer promotions available
- No-contract service — no annual maintenance agreement required
Request Your Free Estimate
D's Air & Heating is an Authorized Lennox dealer — Serving Chicago Since 2010.
Contact D's Air & Heating today to schedule a free Lennox Smart Thermostats installation estimate and discover why Chicago homeowners continue to choose Lennox for dependable comfort and efficiency.
(773) 940-0965