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WETT Inspections – Common Problems to be Aware of

Here are some common issues typically found during a WETT inspection. Use this information to help prepare you for your upcoming WETT inspection.

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WETT Inspections – Common Problems to be Aware of

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  1. WETT Inspections – Common Problems to be Aware of More often than not, it seems with most WETT inspections of wood burning appliances, there are typical issues or defects that many folks are not aware of or oblivious to. Here are some common issues typically found during a WETT inspection. Use this information to help prepare you for your upcoming WETT inspection Issues with Hearth Extensions or Floor Protection Hearth extensions or floor protection is a common issue. For most wood burning fireplaces, a hearth that extends at least 16” in front of the opening and 8” to each side is required. The hearth must be constructed with a permanent non combustible material, such as tile or brick. If the firebox of a fireplace is higher than that hearth, then in some cases an extension may be required to meet code compliance. For woodstoves, generally floor protection must extend out 18” in front of the loading door, and 8” around the sides and rear of the stove. These are general rules and depending on the manufacturers specified installation instructions, may vary between different makes and models of stoves. Damaged Dampers Dampers which are damaged or not functional on woodstoves and fireplaces are another common problem observed during WETT inspections. Always ensure the damper is in good condition and fully operational, perform repairs right away if your damper is not functioning correctly. Pipe Screws/Clamps Missing flue pipe screws or clamps is another very common problem found during WETT inspections. Each section of flue pipe must have three screws or equivalent

  2. clamps securing each connection point. Ensure the flue pipe crimps are also installed with the correct orientation so any condensate can flow back towards the appliance and not leak at the joints. Combustible Materials Clearance to combustible materials is the most common problem observed during WETT inspections. The clearances required for uncertified appliances are simple, 48” around each side and loading door, 60” to the ceiling from the top of the appliance. Use of appropriate shielding can reduce clearances by up to 67% in some cases. Clearances for certified appliances must be set as stated in the instructions that come with the appliance. Reduced clearances can also be achieved with the appropriate heat shielding installed as per the manufacturers installation instructions. This is not a full comprehensive list of all problems encountered during a WETT inspection, but this gives homeowners a good idea of what to look for and where to start when preparing for their WETT inspection. Above Grade Home Inspections Inc. performs WETT inspections, home inspections, thermal imaging inspections and mould inspections across Barrie and Simcoe County. https://www.abovegradehomeinspections.ca/

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