Manufacturer spotlight

Rheem Systems

Reliable, efficient Rheem air conditioners, heat pumps, and furnaces — our secondary residential line alongside Daikin, installed and serviced by a family-owned, union-trained crew.

Why Rheem?

A residential line we trust — for good reason

Alongside our primary Daikin Comfort Pro lineup, Rheem is residential equipment we install and service across South St. Louis. It's dependable, widely serviceable, and offered in a full range of efficiency tiers — so we can right-size the comfort and the budget for your home.

We also install and service Rheem on light-commercial rooftops. Whatever the building, we size and seal the system properly — because an HVAC system is only as good as the install behind it.

  • Built to last

    Rheem builds rugged, field-proven residential equipment — and as a line we've installed for years, it's equipment our techs know inside and out for the long haul.

  • A complete residential lineup

    Air conditioners, heat pumps, gas furnaces, and air handlers. We match the right Rheem system to your home, comfort goals, and budget — not a one-size-fits-all box.

  • Efficiency that fits

    From dependable single-stage Classic units to inverter-driven Prestige systems north of 20 SEER2, there's a Rheem efficiency tier for every home and every budget.

  • Quieter, steadier comfort

    Two-stage and variable-speed Rheem systems hold temperatures more evenly and run noticeably quieter than the older single-speed equipment most homes still have.

Real installs

Rheem work from our crews

Real Rheem residential and light-commercial installs across the St. Louis area — furnaces, air handlers, and rooftop units, set and sealed by Local 36 union technicians.

  • Rheem high-efficiency gas furnace installed in a St. Louis basement
  • Rheem Commercial rooftop package unit installed on a St. Louis building
  • A Degenhardt technician setting a Rheem rooftop unit on a commercial roof
  • Rheem Commercial package unit on a commercial rooftop in St. Louis

The lineup

Rheem efficiency tiers, explained simply

Rheem's Endeavor Line covers single-stage, two-stage, and inverter-driven systems. We'll recommend the tier that fits your home and budget — never a one-size-fits-all upsell.

  • Endeavor Prestige Series

    Up to ~20 SEER2

    Inverter-driven

    Variable-capacity operation for the highest efficiency and the most even, quiet comfort in the Endeavor line.

  • Endeavor Classic Plus Series

    ~17 SEER2

    Two-stage

    A strong balance of efficiency and value, with quieter two-stage operation that holds temperatures more steadily.

  • Endeavor Classic Series

    15.2–16 SEER2

    Single-stage

    Dependable, budget-friendly comfort that meets current efficiency standards — a reliable workhorse for many homes.

  • Rheem gas furnaces & air handlers

    Up to 98% AFUE

    High-efficiency heat

    Matched Rheem furnaces and air handlers complete the system so heating and cooling work together as one.

Efficiency figures are Rheem-published ranges for the Endeavor Line and vary by model and configuration. Final equipment, sizing, and pricing are confirmed at a free in-home estimate. Depending on the system, you may also qualify for Ameren Missouri or Spire rebates.

Why install with us

The right system, installed the right way

A new system is only as good as the install. Here's what comes with putting Degenhardt Heating and Cooling on the job.

  • A brand we know inside and out

    Rheem is our secondary residential line alongside Daikin. Years of installs mean deep familiarity with the equipment, the parts on the truck, and the install details that make a system last.

  • Union sheet metal craftsmanship

    Local 36 sheet metal training means clean, straight, well-sealed duct connections. A new system only performs as well as the ductwork you bolt it to.

  • Decades of South St. Louis experience

    Family-owned and union-trained, we've installed and serviced HVAC across South St. Louis for decades — residential and light commercial alike.

  • Honest, holistic estimates

    Before we quote a system we check load, airflow, ductwork, and controls — not just the box outside. Free estimates and upfront pricing, every time.

Free estimate

Thinking about a new Rheem system?

Tell us about your home and current equipment and we'll come out for a free estimate. We'll size the system correctly, confirm what your ductwork needs, and lay out honest options across the Rheem lineup.