How to Upgrade a Metal Pre-Fab or ZC Fireplace

Not all fireplaces are alike in beauty or quality. When decisions regarding a fireplace are left to a builder, which is to say a contractor trying to cut costs, the result will virtually always be that a builder-grade fireplace is installed. In other words, you end up with a pre-fabricated metal fireplace also known as a zero-clearance fireplace or a builder box. There are many differences between a pre-fab fireplace and a traditional masonry fireplace. Upon realizing this, many homeowners seek to make improvements. There are several ways to upgrade builder boxes or pre-fab fireplaces.

A Pre-Fab Fireplace as Compared with a Traditional Fireplace

It’s important for homeowners to know which type of fireplace they have for several reasons. First of all, masonry fireplaces last a century or much longer whereas pre-fab fireplaces may not last any longer than 20 years, if that. The need to replace various components of the fireplace may come a lot sooner than expected. The following are clues to help identify which type of fireplace is in your home:
• Pre-fab fireplaces have round dampers, whereas the dampers in masonry fireplaces are usually rectangular.
• ZC fireplaces have siding surrounding the chimney, instead of masonry such as bricks, stones, or cement.
• The fireplace face on builder boxes typically has large slatted openings.

Repairs of Pre-Fab Fireplaces

For a ZC fireplace or pre-fab fireplace to be safe to use, it must be in a good state of repair. The following are the types of repairs that are typically needed for builder boxes or pre-fabricated metal fireplaces:
• The glass fireplace doors may need to be replaced. To prevent a house fire, it is essential that the glass doors are the correct kind for the appliance.
• A new grate may be needed.
• Refractory cement liners may need to be replaced or repaired.
• The refractory cement on rear liners or ceramic floors may have cracks, gouges, or holes, in which case repair with pre-mixed refractory cement may be needed. Panels can be replaced instead, if needed.

Upgrading Builder Box Fireplaces with Gas Logs or Fireplace Inserts

Some pre-fab fireplaces can be converted to gas fireplaces. Manufacturer’s instructions should be followed, to ensure that conversion to gas is possible.

A great way to upgrade a ZC fireplace, pre-fab fireplace, or builder box is by installing a fireplace insert. The following are benefits of a fireplace insert:
• Whereas traditional open fireplaces are highly inefficient, fireplace inserts have efficiency ratings of 75% to over 80%.
• With the improved heat output of your upgraded fireplace, you can cut heating costs. Firewood lasts longer and provides more heat.
• The amount of creosote deposited in the chimney flue is decreased with an efficient fireplace insert. This makes your fireplace safer to use, since creosote is highly flammable. In addition, you could save money on chimney cleaning costs.
• Fireplace inserts can be every bit as beautiful as traditional fireplaces. There are numerous style options that can match homes with every type of décor.

If you’re ready to upgrade your pre-fab fireplace, contact our chimney professionals. No matter what type of fireplace you have, an annual inspection is highly recommended before the start of each burn season.