WETT Inspections – Inspection of Floor Protection

Shane Serra - Saturday, July 18, 2015

WETT Inspections – Inspection of Floor Protection

One of the most common problems we see during WETT inspections on woodstoves and especially fireplaces is the lack of proper floor protection. In general, we often see improper or poor floor protection which can lead to obvious safety hazards.

Inspecting Floor Protection

During the inspection of a typical free standing wood stove, part of the WETT inspection procedure is to inspect the floor protection around the entire unit. In most cases typical floor protection requirements for most woodstoves must extend 18 inches in front of any loading door, and 8 inches around the sides and rear of the unit. Some certified appliances can call for reduced clearances, but in most cases the dimensions listed above are fairly typical. Floor protection must consist of a continuous, durable, non-combustible pad that will provide the ember protection described in CSA B365 (Installation Code for Solid Fuel Burning Appliances).

Standard Requirements for Hearth Pad

More commonly, we see traditional wood burning fireplaces that have improper floor protection. The hearth is typically constructed of masonry and generally extends (for fireplaces with an opening of less than 6ft²) 16 inches in front of the fireplace and 8 inches past the sides. If the fireplace has an opening larger than 6ft², then the hearth pad must extend 20” in front of the opening and 12” past its sides.

In addition to the standard requirements for the hearth pad, if the hearth is raised up off the floor, then a formula for the required extension needed must be calculated based off the height from which the hearth sits off the floor.

Ensuring your have proper floor protection in place prior to your WETT inspection of your woodstove or fireplace will help the unit pass a WETT inspection.

Above Grade Home Inspections Inc. offers WETT Inspections in Barrie and across Simcoe County.