Furnace Articles

Is My Furnace Overheating?

January 31, 2025

Just about any electrical appliance has the potential to overheat, and furnaces are no exception. As a homeowner, you need to take precautions to lower the risk of an overheated unit. You should also be wary of the associated symptoms so you know when to take action.

What’s That Smell Coming From My Furnace?

November 15, 2024

If your furnace is producing a strange smell, you should always treat it with caution. While the cause for the odor may be benign, it could just as easily be harmful to inhale. When in doubt, always open windows to ensure ventilation, and evacuate your Haddonfield home.

What Is a Dual Fuel Heating System?

March 15, 2024

Cardwell HVAC & Plumbing is happy to lay all the options on the table so you can make the best decision for your Marlton home. Here’s what you should know about dual fuel systems: 

How Can I Make My Furnace Last Longer?

January 30, 2024

The average furnace lasts between 10 and 15 years. But did you know you can take steps to make it last longer? There is no shortcut or hack to increase your furnace’s longevity. 

In reality, the key is treating your Marlton system with care and respect. With just a small amount of time and energy, you can ensure your furnace will live well beyond its warranty.

How to Spot a Cracked Heat Exchanger

January 15, 2024

At Cardwell HVAC & Plumbing, we take the safety of our customers in New Jersey seriously. That’s why we want you to know how to spot a cracked heat exchanger.

How Do I Know When It’s Time to Buy a New Furnace?

December 28, 2023

Is the heating, ventilation, and air conditioning (HVAC) system in your Marlton home malfunctioning? If so, be sure to address the issue as soon as possible—doing so can prevent further discomfort and damage.

How to Determine Heat Pump Efficiency

November 30, 2023

If you are in the market for a new heat pump, efficiency is probably a key factor in your search. The Air Conditioning, Heating, and Refrigeration Institute (AHRI) has a universal ranking system for heating and cooling units that serves to help. 

How Does My Gas Furnace Work?

November 15, 2023

On a frosty winter’s day here in New Jersey, your gas furnace is hard at work, keeping your Haddonfield home warm and cozy. Feeling grateful? You’re not alone—it’s one of the most popular forms of heating, as American as apple pie. In 1919, New Jersey inventor Alice H. Parker filed a patent for the first gas-fueled…

Why Is My Furnace Blowing Cold Air?

October 18, 2023

Did you finally turn your furnace on this winter only to have cold air blowing out of your vents?

What Are Signs I Need a New Furnace?

March 15, 2023

A furnace is a major investment for any Cherry Hill homeowner. Although it’s not something that will need to be done frequently, most people will face the decision of needing to purchase a new heating system sometime during home ownership.

Why Is My Furnace Leaking Water?

January 19, 2023

You just discovered there is a puddle of water on the floor in front of your furnace. What does this mean? Why would your furnace be leaking water? 

How Do I Keep My Heat During Extreme Cold Weather?

December 22, 2022

We receive countless calls every time the temperatures drop below normal ranges, as homeowners here in Cherry Hill encounter problems with their home’s heating system. With the record-low temperatures and extreme conditions most of the country is currently experiencing, our Cardwell HVAC & Plumbing professionals want to share some insights and tips with you to keep your indoors cozy while Old Man Winter blusters away outdoors.

Should I Get an 80% or 95% Furnace?

December 16, 2022

When it comes time to replace your current standard-efficiency furnace, there are so many decisions to make.

What Are Furnace Filters?

November 21, 2022

It’s crucial to take proper care of your furnace—it provides your Cherry Hill home with the heat you need to stay warm.