Brand partner
Authorized Lennox dealer for eastern South Dakota.
We install and service the full Lennox lineup — high-efficiency furnaces, air conditioners, heat pumps, and smart thermostats designed to save hundreds on yearly utility bills.
Up to 28
Top SEER2 rating
Up to 99% AFUE
Furnace efficiency
10 years
Parts warranty
1952
Local dealer since
Lennox lineup
Every part of your comfort system
A Lennox system is more than one box — it's a matched, communicating set of equipment that runs more efficiently together than any individual component on its own.
Lennox Gas Furnaces
Up to 99% AFUE — among the most efficient on the market.
From the flagship SLP99V variable-capacity furnace to dependable Merit Series models, Lennox furnaces deliver steady, quiet heat through every South Dakota winter.
- Variable-capacity & two-stage models
- Whisper-quiet operation
- 10-year parts warranty
Lennox Air Conditioners
Up to 28 SEER2 — industry-leading cooling efficiency.
The Signature Collection XC25 is one of the quietest, most efficient ACs ever made. Pair it with a Lennox coil and you'll feel — and hear — the difference.
- Precise variable-capacity cooling
- SilentComfort™ sound technology
- Energy Star certified models
Lennox Heat Pumps
All-season comfort and lower utility bills.
Lennox heat pumps deliver heating and cooling from a single unit — ideal for hybrid systems that switch between electric and gas based on outdoor temperature.
- Up to 24 SEER2 / 10.5 HSPF2
- Cold-climate performance
- Eligible for federal tax credits
Lennox iComfort® Thermostats
Smart control over every Lennox component.
The iComfort S30 ties the whole system together — humidity control, zoning, air quality, and remote access from your phone.
- Wi-Fi & app control
- Feels-like temperature sensing
- Works with Alexa & Google Home
Why Lennox
Built for the way we live in South Dakota
Top-tier efficiency
Lennox routinely sets the SEER2 / AFUE benchmark — meaning lower monthly utility bills, every season.
Built to be quiet
Variable-capacity compressors and insulated cabinets run noticeably quieter than single-stage equipment.
Strong warranties
10-year limited parts warranties on most residential units when registered — backed by Ekern locally.
Rebates & tax credits
Many high-efficiency Lennox systems qualify for utility rebates and federal energy-efficiency tax credits.
Pick your tier
Signature, Elite, or Merit — we'll match it to your home
Dave Lennox Signature® Collection
Top-of-the-line, variable-capacity comfort with the highest efficiency Lennox builds.
Elite® Series
High efficiency, smart features, and quiet operation at a more accessible price point.
Merit® Series
Reliable, code-compliant Lennox quality for budget-conscious replacements.
How we quote
A no-pressure, in-home Lennox consultation.
Every Lennox install starts with a free in-home visit. We measure your space, look at duct work, talk through your priorities — efficiency, comfort, budget — and put together a fixed, written quote.
- Manual J load calculation, not a square-footage guess
- Three matched options (Signature / Elite / Merit) when it makes sense
- Current Lennox rebates and federal tax credits identified
- Financing options available with approved credit
Reviews
What customers say about their Lennox install
"Furnace quit at 11pm in February with a newborn in the house. Ekern had a tech at our door before 7am and a new high-efficiency unit running by noon. Calm, professional, fair price."
Sarah M. — Brookings, SD
"Used them for a water heater last year and a full AC replacement this spring. They show up when they say, leave the place cleaner than they found it, and stand behind the work."
Dave K. — Flandreau, SD
"Got three quotes for a new furnace and AC. Ekern wasn't the cheapest, but their walkthrough was the most thorough and the install was flawless. Worth every dollar."
Janelle T. — Brookings, SD
FAQ
Questions about Lennox systems
Why should I choose Lennox over other HVAC brands?+
Lennox consistently builds some of the most efficient and quietest HVAC systems available — the Signature Collection units routinely top SEER2 / AFUE charts. The result is lower utility bills and steadier indoor comfort.
Are Lennox systems eligible for rebates?+
Many high-efficiency Lennox furnaces, ACs, and heat pumps qualify for utility rebates and federal energy-efficiency tax credits. We'll tell you what's currently available before you buy.
How long does a Lennox install take?+
A standard furnace or AC replacement typically takes a single day. Full system changeouts (furnace + AC + coil + thermostat) usually take one to two days.
Do you service Lennox equipment installed by someone else?+
Yes. We service Lennox (and most other brands) regardless of who installed it — for tune-ups, repairs, or warranty work.
What warranty comes with a new Lennox system?+
Most Lennox residential units carry a 10-year limited parts warranty when registered, plus a manufacturer compressor warranty on cooling equipment. We handle the registration as part of the install.
Ready when you are
Ready to upgrade to Lennox?
Talk to us about the right system for your home — and the rebates currently available.