Local prefab fireplace repair for Lake Whippoorwill homes

A factory-built fireplace is a tested system

A prefab or zero-clearance fireplace is a steel firebox assembly built in a factory and tested together with its own chimney under UL 127, the standard for factory-built fireplaces. Under section R1004.1 of the Florida Building Code, Residential, these units must carry a listing and a label, and they go in only as that listing allows.

Repair follows the same logic. A part that keeps the unit inside its listing is the maker's part for that model, installed the way the manual shows. Our pros start every prefab fireplace repair from that point.

Pipe joints that have come apart

One maker's instructions tell installers to confirm each snap-lock joint by pulling upward on the chimney after locking it. A joint that separates later leaves a gap in the flue path.

Separated joints turn up in attics and chases after roof work, storms or careless storage. We check the joints we can reach, reseat or replace sections as the manual directs and note any stretch of chimney we could not see.

• Joints checked in the attic and chase
• Sections reseated or replaced
• Unseen stretches named on the estimate

Air spaces that must stay empty

Clearances around a factory-built fireplace and its chimney are air spaces, and one maker's manual warns against packing required air spaces with insulation or other materials. The same maker says blown insulation is never to be used to fill the chimney enclosure.

Stuffed insulation, stored boxes and leftover lumber in a chase or around the unit turn up on repair visits. We clear what we can reach and point out anything that needs removal before the fireplace is used.

Why a prefab fireplace smokes

One maker's troubleshooting guide lists the usual reasons a fireplace smokes, including negative pressure in the house, blowers such as a range hood, wet wood, a dirty or blocked chimney and a chimney that is too short.

We work through that list in order, starting with the easy checks. Many smoking complaints end with a cleaner flue or a change in the house, and only some need parts.

• Negative pressure in the house
• A range hood or other blower running
• Wet or unseasoned wood
• A dirty or blocked chimney
• A chimney that is too short