FAQ

Air conditioning, heating systems and more

John Duffy Energy Services is one of central and northern New Jersey’s leading names in energy, commercial heating, fueling, and HVAC services. As such, we get a lot of questions, including air conditioning questions, heating questions, general energy questions, HVAC questions, and more. Here are some of the more common ones. If your question isn’t listed here, don’t hesitate to contact John Duffy Energy Services today! Maybe your question will make it to our FAQ page!

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Question

What should I do if my heating system isn’t working?


Answer

John Duffy Energy Services is always happy to send a technician to help ensure that your system is functioning the way it’s supposed to. However, you might be able to save time and money by first checking a few basic things. Make sure the temperature switch on your thermostat is turned to “heat,” and set above room temperature. Check to make sure your tank has fuel, and check for any circuit breaks or blown fuses.

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Question

How much will an air conditioning or heating system cost?


Answer

Because every building is different, we cannot provide a straight, across-the-board figure, but you can contact John Duffy Energy Services for a free estimate today!

commercial-faq
Question

Do I need to get tune-ups for my air conditioning system?


Answer

Air conditioners tend to have malfunctions and breakdowns on the hottest days of the year, but getting regular tune-ups will help prevent this and could catch problems before they get out of hand, ultimately saving you a lot of money.

commercial-faq
Question

What are the advantages of an oil-fired water heater?


Answer

An oil-fired water heater produces the hottest flame of any water heaters out there, which means your water heat up more quickly and efficiently. This, in turn, means you’ll save money and cut costs.

Office Address
465 Mulberry Street, Newark, NJ 07114

Mailing Address
P.O. Box 5610, Newark, NJ 07105




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