Lennox ML193EK Gas Furnace

The ML193EK features the Power Saver™ constant-torque motor for energy efficiency, noise-reducing materials for quiet operation, and compliance with 2025 EPA regulations for lower GWP refrigerants. This furnace provides ultimate comfort, reduced energy bills, and may qualify for energy rebates.

Homeowners can choose between a 10-year parts only coverage or a 3-year labor coverage and 7-year parts coverage option for eligible Merit series models. Terms and conditions apply.

About the Lennox ML193EK Gas Furnace

Who this furnace is for

This Lennox gas furnace fits a defined heat-load range. Sizing isn’t done by the square footage of the home alone: a proper Manual J load calculation accounts for insulation, air sealing, window quality, basement conditioning, and ductwork. A furnace too big short-cycles and wears out faster; one too small runs flat-out on the coldest day and never quite catches up.

Why customers pick Lennox

Lennox sits at the premium end of the residential HVAC market. The brand pioneered ultra-high efficiency variable-capacity systems and has been a go-to for homeowners who value quiet operation, tighter temperature control, and longer equipment life over upfront price.

Installation notes

A furnace install involves the cabinet itself plus venting (B-vent for mid-efficiency, PVC for condensing), a condensate drain on condensing models, a properly sized gas line, a chimney liner adjustment if you’ve gone from mid- to high-efficiency, electrical, thermostat wiring, and a TSSA-permit gas safety inspection. Old equipment removal and disposal are part of the job.

Warranty and rebates

Lennox furnaces in this tier typically carry a 10-year limited parts warranty and a 20-year-to-lifetime heat exchanger warranty when registered. Enbridge Home Efficiency Rebate Plus covers high-efficiency gas furnace replacements when bundled with envelope or heat pump upgrades.

Why installation matters

The same equipment, badly installed, will underperform its rated efficiency and cut years off its service life. Refrigerant charge, duct static pressure, gas pressure, combustion air supply, and condensate management are all set during commissioning, and getting them wrong is invisible until the warranty period ends. Our installs include a full commissioning checklist and a follow-up performance check.

Available with professional installation by our TSSA-licensed technicians. Call (647) 558-5528 for a quote.