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 Water Heater
Installation in Chicago
Tank, tankless & hybrid models. Permits pulled. Warranty registered. Financing available.
IL License #2183457 · Serving Chicago & Suburbs Since 2009
Chicago's Lennox Water Heater Experts
Lennox Water Heater Installation & Replacement
D's Air & Heating, Inc. is Chicago's trusted Lennox Premier dealer for water heater installation and replacement. We install the full Lennox lineup — standard tank, high-efficiency tank, tankless on-demand, and hybrid heat-pump water heaters — for single-family homes, two-flats, and multi-unit buildings across Chicago and the surrounding suburbs. Every installation includes permit pulling, code-compliant venting, startup testing, and Lennox warranty registration. No contracts. No surprises. Just honest, licensed HVAC service from a team that's been serving Chicago since 2009.
Lennox water heaters provide dependable hot water, high efficiency, and long-lasting performance for Chicago homes. At D's Air & Heating, we install, repair, and maintain the full Lennox water heater lineup, including standard tank models and high-efficiency units designed for consistent hot water delivery. Chicago homeowners rely on water heaters daily for showers, laundry, dishwashing, and home comfort, and Lennox systems are built to handle heavy usage with durable components, fast recovery rates, and reliable heating technology.
Our technicians perform manufacturer-approved installations, precision plumbing connections, and full system diagnostics to ensure your Lennox water heater operates at peak efficiency. Whether you're replacing an older tank or upgrading to a high-efficiency model, we offer clear pricing, fast service, and professional workmanship — all with no contracts required. Lennox water heaters help reduce energy costs with improved insulation, efficient burner systems, and smart thermostat compatibility. Browse the full Lennox Systems Overview to compare models across the entire lineup.
We also specialize in Lennox water heater system upgrades, including expansion tanks, recirculation pumps, mixing valves, and safety enhancements. Proper installation ensures faster hot water delivery, improved efficiency, and long-term reliability — critical for Chicago homes with high hot-water demand. For full plumbing and hot water services, our team handles everything from new installs to emergency replacements. Contact us for a free estimate today.
Lennox Water Heater Models
Water Heaters We Install in Chicago
Lennox 50-Gallon Gas Water Heater
The Lennox 50-gallon natural-gas tank water heater is the most-requested model for Chicago bungalows, greystone two-flats, and single-family homes. Features electronic ignition, a glass-lined tank for corrosion resistance, and a factory-set 120°F thermostat. D's Air & Heating, Inc. stocks this model year-round for same-day replacement — permit pulled, old unit hauled away, startup tested before we leave.
- 50-gallon capacity
- Natural gas — electronic ignition
- Glass-lined corrosion-resistant tank
- 6-year Lennox tank & parts warranty
- Same-day availability
Lennox 75-Gallon Gas Water Heater
The Lennox 75-gallon model is built for high-demand households, Chicago two-flats, and multi-unit buildings where a 50-gallon unit can't keep up. Available in natural-draft and power-vent configurations to match your existing venting setup. D's Air & Heating, Inc. handles gas line inspection, code-compliant venting, Chicago permit, and full startup — all included in the flat-rate price.
- 75-gallon capacity
- Natural draft or power vent
- Ideal for 2-flats & large homes
- High-recovery BTU burner
- Chicago permit included
Lennox LRH Low NOx Atmospheric
The Lennox LRH Low NOx atmospheric water heater is specifically designed to meet Chicago's strict emissions ordinance. The low-NOx burner reduces nitrogen oxide output to comply with city code — required in many Chicago neighborhoods where standard atmospheric models are no longer permitted. No power vent needed. D's Air & Heating, Inc. installs and permits LRH models in all 77 Chicago community areas.
- Low NOx burner — Chicago city code compliant
- Atmospheric venting — no power vent required
- Available in 40, 50 & 75-gallon
- Meets Chicago emissions ordinance
- Chicago permit included
Tankless On-Demand Water Heaters
Tankless water heaters heat water only when you turn on the tap — no storage tank, no standby heat loss, and endless hot water for the whole household. Up to 40% more energy-efficient than standard tank models. D's Air & Heating, Inc. handles gas line sizing and upgrade, dedicated venting installation, and the Chicago permit. Ideal for Chicago homes looking to free up basement space or cut monthly gas bills.
- Endless hot water on demand
- Up to 40% more energy-efficient
- Space-saving wall-mount design
- Gas line sizing & upgrade included
- Chicago permit included
Weil-McLain Tankless Water Heater
Weil-McLain's wall-hung condensing tankless water heaters deliver on-demand hot water at up to 96% thermal efficiency — ideal for Chicago homes that want to eliminate standby heat loss and free up basement space. D's Air & Heating, Inc. installs and permits Weil-McLain tankless units with proper gas line sizing, dedicated venting, and full startup testing.
- Up to 96% thermal efficiency
- Endless hot water on demand
- Wall-mount — saves basement space
- Compatible with radiant & hydronic systems
- Chicago permit & startup included
Lennox 40-Gallon Heat Pump Water Heater
Heat pump water heaters use electricity to move heat from the surrounding air into the water — using up to 3× less energy than a standard electric water heater. Ideal for Chicago homeowners looking to reduce gas usage or pair with solar.
- 40-gallon capacity — fits most households
- Up to 3× more efficient than standard electric
- Energy Star® certified
- Hybrid mode — heat pump + electric backup
- Ideal for electrification or solar pairing
Electric & Point-of-Use
More Lennox Water Heater Options
From whole-home electric tanks to under-sink point-of-use units — D's Air & Heating, Inc. installs the full Lennox water heater lineup.
50-Gallon Electric Water Heater
Standard 50-gallon electric tank — reliable whole-home hot water for most Chicago households.
- 50-gallon capacity
- Electric resistance heating
- Standard 240V connection
- Easy replacement fit
$1,195 installed
Get Estimate →
80-Gallon Electric Water Heater
High-capacity 80-gallon electric tank — ideal for large households, multi-unit buildings, or high hot-water demand.
- 80-gallon capacity
- Dual heating elements
- High-demand households
- Multi-unit compatible
$1,495 installed
Get Estimate →
Point-of-Use Water Heater
Compact under-sink or closet-mount unit — delivers instant hot water at a single fixture without waiting for the main tank.
- Compact under-sink install
- Instant hot water at fixture
- 120V standard outlet
- Ideal for additions & offices
$595 installed
Get Estimate →Upfront Pricing
Lennox Water Heater Installation Pricing
Flat-rate pricing — no hidden fees, no contracts.
$1,200 – $2,200
40–50 gallon natural-draft or power-vent tank. Includes removal, permit, and startup.
- Remove & haul away old unit
- New Lennox 40 or 50 gal tank
- Chicago permit included
- Gas line & venting check
- Startup & water temp set
- 6-year Lennox warranty
$1,800 – $3,200
75–80 gallon or power-vent models for larger homes, two-flats, and multi-unit buildings.
- Remove & haul away old unit
- New Lennox 75–80 gal tank
- Power-vent installation
- Chicago permit included
- Startup & pressure test
- 6-year Lennox warranty
$2,800 – $5,500
On-demand tankless unit. Includes gas line upgrade, venting, permit, and startup.
- Remove existing water heater
- New Lennox tankless unit
- Gas line sizing & upgrade
- Dedicated venting install
- Chicago permit included
- Lennox manufacturer warranty
Prices reflect typical Chicago-area installations. Final quote provided after on-site assessment. Financing available — ask about current Lennox rebates.
Why Choose D's Air & Heating, Inc.
Chicago's Lennox Water Heater Specialists
Lennox Authorized dealer
Factory-Trained. Warranty-Backed. Premier Certified.
As a Lennox Premier dealer, D's Air & Heating, Inc. technicians receive ongoing factory training on every Lennox product line — including water heaters. We install to Lennox specifications, register your warranty at installation, and provide direct access to Lennox technical support when needed. IL License #2183457.
Common Questions
Lennox Water Heater FAQ
15% Off With Our Maintenance Agreement
Sign up for a D's Air Maintenance Agreement and receive 15% off qualifying repairs and upgrades upon acceptance.
Service call charge is for travel and diagnostics only. It is not deducted from the job total.
Need a New Water Heater? Call D's Air & Heating, Inc.
Same-day estimates available. Lennox Premier dealer. Licensed & insured. No contracts.
D's Air & Heating, Inc. · 549 N Monticello Ave, Chicago, IL 60624 · 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.
Water Heater Installation in Chicago — What Homeowners Should Know
Tank vs. Tankless Water Heaters
Traditional tank water heaters store 40–80 gallons of hot water, ready on demand. They are less expensive upfront but continuously heat water even when not in use (standby loss). Tankless (on-demand) water heaters heat water only when needed, eliminating standby loss and providing unlimited hot water. Tankless units cost more upfront but typically last 20+ years vs. 10–12 years for tank units.
Sizing Your Water Heater
Tank water heaters are sized by first-hour rating (FHR) — how many gallons they can deliver in the first hour of use. A family of four typically needs 60–80 gallons FHR. Tankless units are sized by flow rate (GPM) and temperature rise. Undersizing causes cold water complaints; oversizing wastes energy. D's Air sizes every water heater to your household's actual demand.
Venting and Gas Requirements
Gas water heaters require proper venting to exhaust combustion gases. Atmospheric units use a draft hood and natural draft flue. Power-vent units use a blower to exhaust horizontally through PVC pipe. Direct-vent units draw combustion air from outside. Each type has specific clearance and termination requirements. D's Air verifies venting compliance on every installation.
Water Quality and Anode Rods
Chicago's water supply is moderately hard. Mineral buildup (scale) reduces water heater efficiency and shortens tank life. The sacrificial anode rod protects the tank from corrosion — it should be inspected every 3–5 years and replaced when depleted. D's Air checks anode rod condition on every water heater service call.
What to Expect From Your D's Air Water Heater Installation
Free Estimate
We assess your current unit, household demand, and venting situation, then provide written options.
Equipment Selection
We recommend the right type, size, and efficiency level for your home and budget.
Installation Day
Our crew removes the old unit, installs the new one with proper connections and venting, and cleans up completely.
Startup & Testing
We verify gas pressure, test the T&P valve, check for leaks, and confirm proper hot water delivery.
Customer Training
We walk you through temperature settings, the T&P valve location, and annual maintenance.
Warranty Support
We register your equipment and remain available for follow-up service.
D's Air Water Heater Installation Standards
- Proper sizing — first-hour rating or GPM matched to household demand
- Venting verified — type, clearances, and termination per code
- Gas line pressure test and leak check
- Temperature and pressure relief valve tested and properly piped
- Expansion tank installed on closed systems
- Seismic strapping where required by code
- Condensate drain for high-efficiency and tankless units
- City of Chicago permit pulled on every installation
- 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 Water Heater Installation & Service Features
- High-efficiency water heating
- Multiple capacity options for Chicago homes
- Energy-saving technology
- Smart controls and monitoring
- Lennox manufacturer warranty coverage
- Lower utility costs year-round
- Reliable hot water delivery
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 Water Heater Installation & Service installation estimate and discover why Chicago homeowners continue to choose Lennox for dependable comfort and efficiency.
(773) 940-0965