Is Oven Insulation Flammable? (Must Know This)

By - Hs Saini

Updated -

The making and design of oven insulation involve the use of materials that help to trap heat while at the same time being fire-resistant insulation.

The trapping of this heat prevents it from spreading to other locations.

This article will help you see if it is or is not possible for oven insulation to become flammable. You will also see what oven insulation has a making-of and the insulations usually used in ovens.

So, keep your mind alert to learning many new things today.

Oven insulation is built for the primary purpose of being fire-resistant. Yet so many faults or problems can cause your insulation to burn. However, fiberglass and mineral wool insulation have a reputation for being non-combustible. And they remain so throughout the life of the oven.

Can Oven Insulation Catch Fire?

An oven being on fire is usually an unpleasant and rare sight to behold, but it is not impossible to come across.

And most times, this is because using ovens with insulation is not recommended. But, of course, another reason could be using an oven without insulation at all.

Often people go as far as using traditional home insulation on the oven, not knowing that such insulation can not handle the extreme range of temperatures given off by the oven.

To avoid the drama that may follow, you should use a safe and recommended insulation.

Another reason your oven and insulation catch fire is when you prepare a meal with a lot of grease and fat. If it splatters on your oven, it will cause a flame to rise.

Sometimes also, during baking, the batter may overflow and drop to start a flame.

Is Oven Insulation Fireproof?

The entire oven has coverage with insulation from the top, sides, to bottom. And yes, this insulation is fire resistant and protects you against fires.

However, suppose any part of the oven is missing insulation. And this will cause a severe reduction in the oven’s efficiency since the heat you are using will find its way into your environment.

Yes, all oven insulation is fireproof and usually remains that way as long as the oven remains at its average temperature. But at very high temperatures, insulation melts down.

What is Oven Insulation Made of?

Just like the insulation batts found inside the house wall, oven insulation is also manufactured from a fiberglass material that is the standard.

The only difference is that the oven insulation has a higher heat rating than the traditional insulation materials.

When it comes to the oven, non-metallic materials such as plastic, rubber, and ceramics work better as insulators.

Compared to the others, like the metals, which are good conductors of heat. And this is why ovens without insulation cause burns.

Is Oven Insulation Dangerous?

There is no doubt that insulation in poor condition will cause harm not just to you but also to your family.

For example, a poorly installed oven that is supposed to help contain fire allows it to spread to other parts of the house.

And using the wrong insulation may cause the insulation to catch fire.

Below are the four significant health hazards widely associated with a poorly installed oven insulation:

#1. Exposure to Cancer

It can happen when a chemical fails to bind with the insulation material but escapes to other house areas.

For example, a carcinogenic substance that causes cancer would gain access from foam insulation with fire-resistant material.

It effectively inhibits nervous system development and attacks the thyroid hormone gland.

#2. Respiratory issues

When insulation is not correctly installed, you will be releasing hazardous chemicals going off into the atmosphere.

After an extended period of inhaling these chemicals, you would begin respiratory issues like asthma triggers and difficulty breathing.

#3. Irritation and Skin Problems

If your insulation is poorly installed because you or your technician failed to follow the appropriate guideline, you will suffer severe irritation.

A notable example of fiberglass is good at relaxing and causing skin irritation. 

Although not everyone but the eyes, nose, and mouth those sensitive to the formaldehyde contained in fiberglass.

But if you notice any odor coming out of the insulation, it will be best to work on improving your indoor air.

#4. The Danger of Falling Sick

To attain form and solid, foam insulation uses catalysts called amines. Unfortunately, it sometimes pulls off the finished insulation due to poor installation and handling.

And after prolonged exposure, they tend to make you sick, so if you notice any flawed structure, endeavor to fix it to avoid devastating health conditions.

So a failure on your part to ensure the proper installation of your oven insulation will lead to the aforementioned catastrophic health hazards.

To be safe, carry out proper installation, do constant maintenance and replace oven insulation when there is damage.

What Kind of Insulation is Used in Ovens?

The most common insulators we find around us that are great in use are ceramic, rubber, plastic, and wood.

They are often seen at the forefront when it comes to manufacturing handles of utensils to prevent heat from reaching the hands.

Likewise, fiberglass stands very much above all of them mentioned above when it comes to the oven.

Recently there has been a shift in the choice of insulation material from fiberglass to more recent products.

Fiberglass is eventually going out of date due to modern fibers that have non-metallic materials and high energy efficiency.

In addition, these days, we have kitchens with features of touch-sensitive control, cooking sensors, and sensitive parts.

But if all these parts become available in fiberglass, they would be destroyed by the heat.

Nevertheless, today we have very reliable appliances like the AES fiber thermal insulation that can withstand 1,800 degrees Fahrenheit temperature while at the same time offering between 5 and 20 percent lower thermal conductivity. 

Because the temperature limit of fiberglass is 1,000 degrees Fahrenheit, it is not safe, effective, or efficient enough.

Whereas the AES insulation cleans and destroys all traces of organic matter without using chemicals or detergents.

Lastly, when it comes to thermally insulating sensitive appliance design, fiberglass tends to be very restricted in this area.

In contrast, the flexibility or adaptability of AES around electronic parts is breathtaking.

Can I Use Regular Insulation in My Oven?

You should not use regular or conventional insulation for your oven because it can not handle the temperature level released by your range.

To ensure that the heat remains trapped in the oven, only use the insulation recommended for the particular oven.

Note that using conventional insulation could also burn and release hazardous particles into the atmosphere.

For example, the melting of regular insulation in the oven can cause even fiberglass insulation to burn.

And often, this burn from fiberglass or combined plastic polymers can spread throughout the whole house.

And this will put your life and the life of everyone in the house in jeopardy.

I will strongly advise using regular or conventional insulation for your oven. However, doing so shows a gross disregard for one’s safety.

So go through your oven’s manual and identify the insulation best fitting for your oven.


Yes, oven insulation is flammable, which is possible based on so many reasons. Your insulation will catch fire if you use the wrong insulation.

All oven insulation is fireproof and made from fiberglass. Oven insulation, with time, becomes hazardous to health.

But more than anything, ensure never to use regular insulation in your oven.

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