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Frequently Asked Questions

Frequently Asked Questions

Lennox Heating Systems

What is the best thermostat to use for my heating system?

What is Precise Comfort™ technology?

What is AirFlex™ technology?

The SLP98V furnace claims to be the "most efficient and quietest furnace you can buy." Other furnace manufacturers make similar claims. Whose claim do I believe?

Every time my current furnace cycles on, I hear a rush of air that's so loud, it wakes me from my sleep. Does the SLP98V solve that problem?

Does the SLP98V work in a dual-fuel application?

Can the SLP98V help reduce contaminants in my home's air?

What is a heat pump?

What is two-stage heating?

Can I use my chimney with my new furnace?

What are furnace ratings?

What is SilentComfort™ technology?

What is a variable speed furnace?

The term "variable speed" refers to the furnace's indoor blower motor, which moves at different speeds to precisely control the flow of heated and cooled air throughout your home. Better airflow control has several benefits:

Electrical efficiency

Variable speed motors can actually save you money on your energy bills, as they consume less electricity than standard motors.

Cooling efficiency

Variable speed technology also means you will gain heating efficiency or AFUE.

Zoning

Variable speed motors are excellent for zoning, which allows you to customize your comfort in different areas of your home and control your energy bills.

Air quality

A variable speed motor can also help clean the air in your home. When the fan is in constant operation (indicated by the "Fan" setting on your thermostat), the motor will continue to slowly circulate air, allowing filters to capture more contaminants.

Humidity control

A variable speed motor combined with a ComfortSense 7000 programmable thermostat Home Comfort Control allows you to control the amount of humidity in your home for improved indoor air quality and comfort.

Why should I zone my house?

Will my new furnace work differently than my old one?

When replacing the outdoor unit, should the indoor unit also be replaced?

How can I confirm the model and serial numbers for my heating system?

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