Here's an ideal combination of energy efficiency and affordability. When taking control of your utility bills is a priority, but you don't want to sacrifice comfort or economy, the Merit® Series ML193 furnace is a perfect fit. You can count on the ML193 furnace to keep your home warm and cozy, even on the coldest days, for many years to come.
As reliable as it is efficient. Every component of the ML193 furnace is rigorously tested in our dedicated research lab. As a result, you can count on your new furnace to deliver the highest possible levels of reliability and performance. The ML193 furnace comes with a 20-year limited warranty on the heat exchanger and a 5-year limited warranty on all remaining components.

• Duralok Plus™ Heat Exchanger –
Made of patented ArmorTuf™ aluminized steel.
• SureLight® Ignitor – Silicon nitride construction
for long product life and reliable operation.
• Stainless Steel Secondary Heat Exchanger – Allows the furnace to reach high efficiency levels by capturing additional heat.
• SureLight Integrated Control Board –
Ensures full control of furnace operation.
• Robust Blower Assembly – Exceeds industry standard airflow
for even temperatures and improved comfort.
• Durable Steel Cabinet – Made to last, with a resilient
and attractive textured-paint finish.
• Sealed Blower Compartment – Minimizes losses and maximizes
efficiency and comfort. Less than 1% leakage at 1.0" ESP.