10 Things to consider when buying a Furnace

What exactly is a Furnace?

A furnace is one of the many heating devices used in the modern age. It is powered by propane, natural gas, and electricity. In the past, it was used mainly for ceramic work but nowadays is used as a heating source for residential homes and commercial buildings. This useful device has evolved to come in several types such as room heaters, stoves, and steam-water systems.

What does a Furnace do?

When it comes to Gas Furnace, the pressure is the key. The control board recognizes the call made by the thermostat and sends power to the ignitor. Then through the gas valve, the flame sensor is ignited which eventually results in heated blows of air through the ducts. Whereas, propane and oil furnaces need oil storage tanks to vaporize the fuel in a sealed chamber. So yeah! Here's what Furnaces do.


What should be kept in mind while buying a Furnace?

Following are the key points which must be considered on your next furnace purchase:

- Choose the prime fuel type

You must select a suitable fuel type based on your area. In the case of mild winters, electric furnaces are the best. But ones that work in natural gas are preferred in areas with harsher weathers

- Know the energy efficiency rate 

Greater AFUE (annual fuel utilization efficiency) ratings, the better.

- Take account of size as per your needs

Of course, size matters. Too small and it won’t do the job properly. Too large and it will result in unnecessary energy cycles and wear and tear of the components.

- Air Quality and Filtration

Your furnace will play a big role in determining the overall air quality of your home and thus the furnace’s filtering features must be kept in mind. You may also consult a qualified HVAC technician.

- Pay attention to the Fuel Price Range

As oil prices vary a lot, you should get one with predictably fewer fluctuations to not get out of budget. If you like consistency more, it is better to get a gas furnace.

- Keep in mind the TOC

Now, what exactly is a TOC? It stands for the “Total cost of ownership” and measures the repair cost, installation and repair measure, etc. Professional advice must be acquired to calculate the TOC considering the numerous factors and ratings. It is better to buy one which has less upfront costs.

- Choose one with the best Ignition System

A furnace must be chosen with an ignition system with a consistent flame. Intermittent and hot-surface ignition systems are more reliable.

- Got budget for a Two-Stage Furnace?

If your answer is yes, then it will become one of the best appliance purchases you will make for sure! Two-Stage works like a one-stage, except that it utilizes a three-position valve which is way more efficient and reliable.

- Check Online Customer Reviews

Others’ reviews can come a lot in handy while buying your own stuff.

- Go Eco-Friendliness

Although they may be a bit pricey, but these come with additional features that are certain in increasing the overall device’s efficiency.

Consider these 10 factors while making your next purchase and you would enjoy absolute indoor comfort. Bet? 

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Beware the consequences of a leaky Heat Exchanger

HVAC appliances, while they are meant to give comfort, can also become a reason for causing absolute discomfort. Leaks in components like ductwork is discomforting but leakage in the component like heat exchanger is lethal. One reason why HVAC professionals highly endorse getting inspection and tune-up for Residential Furnaces is to minimize the threats that the prospect issues in the Furnace and its components can cause. This blog defines the threats a leaky Heat Exchanger poses and explains how in-time annual maintenance and tune-up by a professional can save you from great havocs.

Abrupt and sudden Furnace Fires

With a Furnace unit not maintained on a regular basis, cracks, dents, and holes in the heat exchanger unit is a clear consequence. Cracks in the heat exchanger mean that gases and air can mix anytime in disproportionate measures to cause a sudden and totally unexpected fire. This is especially horrendous for the times when you are away for groceries or to pick your kids from school.

In order to understand how this fire can set, you need to understand the mechanism. In the inside of a heat exchanger, uncombusted gas is present. This gas heats the heat exchanger and the cold air slides on the outside walls of the heat exchanger to receive the heat. The hot air is then circulated in the indoor, while the air inside of the heat exchanger is then expelled through the vents. However, in case of cracks in the heat exchanger, the inside gases can get mixed with the outside gases and get circulated in the indoor. Also, as the combustion gases mix, they can sometimes cause fires that cause severe damage. It takes more than $4,500 to recover from the damage caused by Furnace Fires. 


Carbon Monoxide Poisoning

CO Poisoning is another consequence of a leaky heat exchanger. The heat exchanger, as it is designed to expel combustion gases outside from the vent fails to do so when there is a crack in the heat exchanger unit. As a result, the combustion gases get mixed with the air that is meant to circulate in the indoor. This can cause CO poisoning and the presence of the CO in the indoor can go unfelt for hours until its impacts start to reveal. And by the time it is felt, much damage has already been made.

How to avoid and identify Heat Exchanger Cracks?

The best way to avoid accidents associated with cracky Heat Exchanger is to have the system maintained annually by a professional. A tune-up visit by a professional is highly recommended as it helps identify possible threats. The second way to identify the cracks is to install a CO detector. Since Heat Exchanger leaks also usually cause CO poisoning, a CO alarm can detect that. Make sure to be vigilant about changing CO detector batteries in time if you have a detector installed. Most people suffer accidents despite having a detector installed but one with expired batteries.
Your life is precious and so is your family's. Play safe, take precautions.

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