Glass Doors on Prefabricated or Zero Clearance Fireplaces
While Glass doors for your fireplace are a nice luxury, if you have a prefabricated or zero clearance fireplace, there are some things you should know before spending your hard-earned dollar on a new set of glass doors!
Prefabricated fireplaces are a UL listed product, and the companies who manufacture these fireplaces are VERY specific about altering them in ANY way…including installing a set of aftermarket glass doors that are not original factory parts!
What’s the big deal you ask? The answer is simple: It could be a matter of life and death!
Prefabricated fireplaces are usually constructed of two different sized sheet metal boxes with the smaller box built inside the larger outer box. In most prefabricated fireplaces, there is an air space located between the inner and outer boxes that is designed to allow cool air to circulate as fires are burned, thus keeping the outer sheet metal box as cool as possible. To allow the free passage of circulating air, louvers are usually located either above and below the firebox, or on either side of the firebox.
Installing a set of glass fireplace doors that were designed for a masonry fireplace is a big no-no due to the fact that these types of glass doors often cover up or restrict airflow in and out of these air circulating louvers. Cutting off or restricting this vital airflow may result in overheating your prefabricated fireplace to dangerously high temperatures!
As you can imagine, keeping the outer sheet metal box as cool as possible is VERY important because of all the combustible 2X4 studs that make up the structure of your home in close proximity to your firebox! Should the outer sheet metal box overheat, a fire with catastrophic consequences could result…and because you altered the original factory design by adding an aftermarket set of glass doors, your insurance company may even deny your claim!
If your prefabricated or zero clearance fireplace does not have a set of glass doors, or if your existing glass doors are broken or missing, give A to Z a call! We’ll help you determine if factory original glass doors or properly-fitted aftermarket doors are available for your fireplace, and give you prices accordingly.
Please keep in mind, however, that some prefabricated fireplaces were never designed with glass doors, or the manufacturer is out of business. In either case, a set of factory original glass doors will not be available.
It’s important that the decorative facing around the firebox opening be properly sealed. At A to Z we can make this repair to restore your unit to safe operating standards.
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