In this new edition of the best insulation for your furnace, we explore insulation thicknesses and the advantages and disadvantages of different types of insulators, including a blend of bubble wrap insulation and insulated plastic insulation.
We also examine how the different insulators can help your furnace withstand higher temperatures.
In the meantime, here are the top insulators that work well in your furnace:Bubble Wrap InsulationFlat insulation is generally used in small-furnace systems because it absorbs more heat than rigid insulation, but can be brittle.
To avoid bending bubbles, make sure you use the right size for your system.
Flat InsulationA foam-based insulation, which is less dense than a rigid insulation.
It can withstand up to 50 percent more heat.
Flake-Free InsulationThis is the most common type of insulator, which offers the best thermal performance.
Fluffy insulation, made from a combination of plastic and foil, can be easily broken by heat.
The foil helps to absorb heat, which can result in a bubble wrap-like appearance.
Foil insulation is often more expensive than rigid insulated plastic.
This type of insulation has a longer life than bubble wrap.
Bubbles Wrap InsulatorFoam is generally thicker than rigid.
Bubble wrap is much easier to break, but it’s harder to absorb.
It has a higher thermal resistance and it’s easier to spread out.
Flooring InsulationFoams are a good insulator because they are lightweight and don’t require much heat to build up.
However, the foam can be porous and cause problems with mold growth.
Flooring insulators also tend to be a little more expensive.
Bubbly InsulationBubbles are soft, flexible fibers that can be difficult to cut, and they are generally easier to tear.
They are also lighter than rigid insulators.
Bumpers are a type of insulated insulation that has a softer, more flexible core than rigid, so they are easier to clean up.
Bumpy InsulationThese are a blend between foam and fiberglass, which are lightweight, easy to cut and easy to tear up.
Bumpy insulators have a lower thermal resistance, which makes them ideal for large systems.
Budgerack InsulationIn a bumpers system, insulation is typically made from plastic, and bumpers usually contain a thicker layer of plastic insulation than a solid foam.
These bumpers can be thicker and require more space than rigid panels.
Bumper-free insulation is a good choice for large, well-ventilated spaces where the foam is difficult to clean.
It offers a low thermal resistance.
Cushion InsulationCushions are a flexible, lightweight insulator that absorbs heat well.
They can be used to insulate small spaces, but they can also be used for larger spaces.
Cupholstered insulators are similar to cushions in that they offer a good thermal resistance but don’t absorb as much heat.
Couching InsulatorCouch covers are a common way to insulating your furnace because they allow the walls of the room to be cooled.
However to ensure your furnace won’t catch on fire, make certain that you have a vent hole.
This can be made with a flange or with a rubber mat that extends out from the furnace’s base.
Flush-free InsulationMost flushes insulate the furnace from outside air temperatures to temperatures above 75 degrees Fahrenheit, but there are other options.
Most flushes are made from polyethylene.
Polyethylene is lighter and more flexible than foam, and it can withstand more heat, especially when it’s wet.PVC-Fibre InsulationPVC is a flexible insulation material, which absorbs heat better than foam.
PVC has a better thermal resistance than other types of insulation, and this can result the insulation’s bubble-like look.
Cotton-based insulators will absorb heat but won’t keep the furnace warm, making them an unsuitable material for large spaces.
Flush-less insulators absorb heat well and they can be more expensive, but their durability is limited compared to other types.