We offer professional furnace installation, repair, and replacement services, including high‑efficiency systems from trusted brands like Lennox. A dependable furnace is essential for keeping your home comfortable during Chicago’s long winters. At D’s Air & Heating, we sell, install, service, and replace all furnace models, offering solutions for homes of every size, layout, and budget.

We work with trusted manufacturers, including Lennox, providing access to their full range of furnace options—from entry‑level systems to high‑efficiency and variable‑speed models. Whether you’re looking for basic reliability or advanced comfort and energy savings, our experienced technicians can help you choose the right furnace for your needs.

Furnace Systems We Offer

  • All Lennox furnace models and series
  • High‑efficiency gas furnaces for improved energy savings
  • Single‑stage, two‑stage, and variable‑speed systems
  • Furnace options for small homes, large homes, and multi‑level properties
  • Replacement options for aging or inefficient systems

Each furnace model is designed with different performance features, efficiency ratings, and comfort benefits. Exploring individual models can help you better understand which system may be the best fit for your home.

Lennox Furnace Models

  • Merit® Series Furnaces – Reliable performance and solid efficiency for dependable home comfort
  • Additional furnace models and series available upon request

Professional Furnace Installation & Service

Choosing the right furnace is only part of the equation. Proper installation and ongoing service are critical for safety, efficiency, and long‑term performance. Our licensed HVAC technicians ensure every furnace is installed to manufacturer specifications and local code requirements.

We also provide routine maintenance and prompt furnace repair services to help keep your system operating efficiently year after year.

If you’re unsure which furnace model is right for your home, we’re here to help.

Contact D’s Air & Heating today to schedule a consultation or request a furnace estimate.