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Top Central Ohio Heating Equipment Supplier

When it’s time to replace your heating equipment, it’s just as important to choose the right equipment supplier or installer as it is to choose brand, BTU, efficiency, and other elements of your system. If you are spending money to repair a heater that’s more than 10 years old, it might make more sense to replace it with a new, more energy-efficient furnace. Undoubtedly, the new system will use less energy simply because newer units include improved technology.

What Kind of Heating Equipment Do We Supply?

Dor-Mar proudly offers Rheem and Coleman furnace and heat pump systems; Aprilaire programmable thermostats and air purifiers; and Rheem gas or electric hot water tanks and tankless water heaters. Rheem has nearly a century worth of manufacturing innovative, efficient, air and water solutions for your home and business.

As a result of our hard work and integrity, Rheem & Coleman recognizes us as a Top Team Contractor. We offer free estimates on new equipment, and provide customers with 24-hour service.

What Kind of Heating Equipment Company is Dor-Mar?

Dor-Mar is family owned and operated; we hold our employees to the highest standards to ensure we provide our customers with the best HVAC service possible. We currently have more than 40 employees, all who are passionate about taking care of our customers’ needs. Our employees attend regular training, ensuring we keep up with the ever-changing HVAC field.

A History of Success in Heating Equipment

Starting in 1962 as a small, local business in Newark, Ohio, we know exactly what’s required to keep your home warm and your family comfortable during the harsh temperatures of our Ohio winters. We know that reliable indoor comfort begins with heating equipment that is properly sized for your home, and installed the right way.

Even a premium system will fall well short of expectations if is under- or over-sized or not installed properly. When you make the investment in a brand-new heating system for your home, choose the team from Dor-Mar Heating & Air Conditioning that has served the Central Ohio area for three generations.

Best Heating Equipment Supplier in Central Ohio

When you contact us for a replacement furnace installation, you will be sure to receive accurate recommendations, the finest in workmanship, and our unrivaled Customer Satisfaction Guarantee. Every installation is quality inspected by our staff and must meet our high standards… but most importantly, your 100% satisfactionGood isn’t good enough for us, we insist on the absolute best! We’ll pay close attention to the smallest details and to the big picture, so you’ll experience unparalleled comfort and cost-savings, starting today and continuing through the long life of your new furnace.

Time to Replace Your Old Heating Equipment?

If you think it may be time to replace your old heating and air conditioning unit, schedule a FREE in-home consultation with one of Dor-Mar’s Heating Equipment Experts to give you an estimate on the cost of installing a new furnace or air conditioner.

Highest-Rated Heating Equipment Provider in Central Ohio?

Knowing when to call is important, but knowing WHO to call when you need the best is also extremely important. Dor-Mar has been serving Central Ohio since 1962, including Zanesville, Newark, and Columbus and all of the surrounding suburbs. We have worked hard to service our customers, and our online reviews show it.

As an experienced HVAC professional, we recommend you have your systems checked and routine maintenance performed twice per year, once in the Spring (before cooling season) and once in the Fall (before heating season). It goes without saying the safety and comfort of your family or office staff are important factors. Keeping what is probably the most expensive and important system in your home (heating and cooling) properly maintained will help keep your biggest investment of your life in good shape.

Dor-Mar Heating Equipment Supplier Can Help

Our team offers a wide array of replacement heating equipment, as well as routine maintenance and emergency services for your heating and cooling system, allowing your family to breathe fresh, safe, clean air and be comfortable year-round. We also offer a number of add-ons to your HVAC equipment that can improve your home’s IAQ, such as electrostatic air filters, whole-house humidifiers, duct cleaning, and more.

Schedule an appointment for HVAC system troubleshooting or maintenance with us today by using our online contact form, or call one of our seven neighborhood offices listed below. We pride ourselves on our customer-focused service, and our reviews show it.

Dor-Mar…Your Climate Hero!




HVAC customer service in Newark, Ohio | Dor-Mar Heating & Air Conditioning

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HVAC customer service in Newark, Ohio | Dor-Mar Heating & Air Conditioning


Our Comittment to Your Family’s Health & Safety

Learn what we’re doing to keep you and your family, as well as our employees, safe from the spread of the virus as we service your heating and cooling needs.