Oil Furnaces

Lennox Oil Furnaces

Designed to provide warm comfort and energy savings, oil furnaces from Lennox are among the most effective and quiet heating systems the industry has to offer. Develop high-performance heat at efficient levels with an oil furnace from Lennox.

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Signature Series

slo185v-oil-furnace

ENERGY STAR^® Certified

SLO185V Oil Furnace

Variable-speed oil furnace

Efficiency Rating: (AFUE): 85

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Elite Series

elo183-oil-furnaces

ELO183 Oil Furnaces

Efficiency Rating: (AFUE): 83

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Dedicated Service

In our effort to prove our commitment to customer satisfaction, the HVAC contractors of Weis Comfort Systems undergo continual training, education, and safety courses to ensure we provide our clients with the industry's most current and efficient practices, products, and security.

Flexible Payment

We accept a wide range of payment options, including Visa, Mastercard, cash, checks, & financing. If you are in need of additional funding for furnace, air conditioning, or ventilation repair or installation services, please visit our pricing and financing page.

Commitment to Safety

We have paired state-of-the-art products, safety, and practices with thorough hiring methods to ensure that our team of HVAC contractors have the experience, background, and skill set to accurately repair, install and maintain comfort systems throughout the St Louis area.

Simple Satisfaction

Weis Comfort Systems is licensed and insured, and our team of expert technicians performs HVAC repair, maintenance, and installation with high detail to ensure that our AC, furnace, and ventilation services are up to code and built to last.

Weis Comfort Systems

5 63 reviews

1591 Fenpark Dr.
Fenton, MO 63026

636-431-5032

Mon - Fri 8:00am - 4:30pm

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Weis DeRousse

5 63 reviews

124 N. Main
Red Bud, IL 62278

618-228-3307

Mon - Fri 8:00am - 4:30pm

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Weis Keil-Forness

5 63 reviews

301 N Illinois St
Belleville, IL 62220

618-228-3523

Mon - Fri 8:00am - 4:30pm

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Gaines HVAC

5 63 reviews

5120 Northrup Ave
St. Louis, MO 63110

314-501-5444

Mon - Fri 8:00am - 4:30pm

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Pricing + Financing:

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Oil Furnaces

Lennox Oil Furnaces

Signature Series

Elite Series

Weis Comfort Systems

Weis DeRousse

Weis Keil-Forness

Gaines HVAC

Service Areas

About Us

Service

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Ways to Improve Indoor Air Quality

How Winter Impacts Your HVAC System

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