Dor-Mar COVID-19 / CoronaVirus Safety Update

UV-C lighting kills viruses, bacteria and mold in your HVAC System

As you may know, Dor-Mar has served the central Ohio area since 1962. Our first priority is the safety and comfort of our customers. With the recent spread of the highly contagious Novel Coronavirus COVID-19 causing a lot of unease in the community, we wanted our customers to know what we’re doing to keep you […]

Kill Common Viruses with an Ultraviolet-C Light Installed in Your HVAC System

ultraviolet-c light systems to kill coronavirus and influenza in HVAC

Kills viruses, bacteria and mold The modern dilemma we all face daily is the quality (or lack thereof) of the air in our homes. Home heating and cooling systems are the perfect breeding ground for germs, bacteria, mold and other airborne allergens. Some statistics show that 75% of the US population lives with a person […]

Spring Air Conditioning Checklist: How to Prepare NOW for Spring and Summer

Spring Air Conditioning Checklist

We know it’s still officially Winter, but the first official day of Spring is only a few weeks away. And with the mild temperatures we’ve had this heating season, we can only guess that our thermometers are going to sizzle this Summer. We believe the best time to prepare your Air Conditioner for the blistering […]

Why Isn’t My Gas Furnace Heating?

Why isn't my gas furnace heating? Columbus Ohio

If your home is equipped with a gas furnace, you would expect it to blow warm air on demand. If it’s blowing cold air instead, there are a number of factors that could be causing the problem. As a savvy homeowner, you can take care of some of them yourself, without the immediate need of […]

Is Air Duct Cleaning Worth It?

Should you have your Columbus home's HVAC ductwork cleaned?

Should you have the HVAC ductwork in your home cleaned? Commercial Duct Cleaning services are popping up everywhere recently, and it’s become quite popular. The big “but” – is the service worth it, especially from one of the specialty discount duct cleaning vendors? This article should help you determine whether your family might benefit from […]

Space Heater Safety Tips

Safe use of a space heater

If you keep your home heating equipment maintained, chances are  you’ll never need a space heater. Sometimes, they can be a great addition to your home’s furnace, to save energy, or if heating just isn’t keeping up with the cold temperatures. See the chart below for a quick overview of our space heater safety tips. […]

80% Efficiency vs. 95% Efficiency Furnaces.

Standard of High Efficiency Furnace - which is best?

Worth the Upgrade Cost? When it comes time to replace your home’s furnace, you have essentially two options when it comes to efficiency – “standard” or 80% efficiency and “high efficiency” or 95% or more. The energy savings sounds tempting, but is replacing your standard furnace with a high-efficiency unit the best choice? We’ll explain […]

5 Ways to Help Your Furnace During Extreme Cold Weather

Help your furnace during frigid temps

So far this year, it’s been a fairly mild heating season. But as of this past weekend, extreme cold has finally arrived in Central Ohio. Our furnaces and heating systems haven’t really been challenged yet, but the cold that we’re experiencing now can really put it to the test. As a homeowner, you’ll want to […]

What Causes Your Furnace Filter to Get Dirty So Quickly?

Why does my furnace filter get dirty so quickly

If you’re a responsible homeowner, you probably know you’re supposed to replace your furnace filters on a routine basis. We recommend checking them monthly, and replacing every two months. But what happens if you check your HVAC filter at its regularly schedule interval, only to discover that it’s completely covered in hair, dust and other […]

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