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Restaurant Exhaust Systems Cleaning

How often should I have my exhaust system cleaned?

    Monthly - Systems serving solid fuel cooking (i.e. Wood Fire Pits)

    Quarterly - Systems serving high-volume cooking operations such as 24-hour cooking, charbroiling, or wok cooking

    Semi-Annually - Systems serving moderate volume cooking operations.

    Annually - Systems serving low volume cooking operations such as: Churches, Day Camps, Seasonal Businesses or Senior Centers.


Does my kitchen need to be closed at time of service?

    Yes.  Any cooking equipment under your hood(s) will need to be turned off and allowed time to cool.


Are the slats in the grease filters vertical?

    Grease filters allow the fan to draw air evenly along your cooking line.  They should be cleaned on a regular basis.  The slats should be vertical to allow the grease to run down the filter, through the drain holes of the filter and into the drain catch of the hood.


Access Panels - Does my fan have access panels to clean both sides of the blades?

    If the underside of the blades aren’t cleaned properly, buildup can cause them to become unbalanced and prematurely wear out the motor and bearings, replacement costs can run into the thousands of dollars.


Do I have an adequate number of access panels?

    Access panels should be installed every 12’ and at every bend.  A general rule of thumb is; if you can’t see it, you can’t clean it.


Are my access panels in place?

    If any access panels are missing, it can cause air to be drawn unevenly through your filters or not at all, defeating the purpose of the hood system.

Does my hood have an up-to-date inspection and cleaning sticker?

    A current and up-to-date inspection and cleaning sticker provides you and your Fire Marshal with critical information about who cleaned / inspected your hood and when it was cleaned / inspected.


How long does a hood cleaning take?

    AVC strives to take as little time as possible to clean your entire exhaust system.  The total amount of time required to clean varies depending on the size of your hood and how many filters and fans exist.  Most systems can be cleaned within two hours.  However, some can take as long as six or more hours.


Do you guarantee your service?

    Yes.  If you or any authority determines that our work is not satisfactory, please call us immediately and we will work with you and/or the authority to remedy the problem as quickly and suitably as possible.


What type of fan do I have?

    It’s important to know if you have an up blast fan or down blast fan.  Down blast fans can be dangerous!  If you ever have a fire it can force flames back down on to your roof or building.


Hinge Kits - Does my fan have hinges?  If no, is the electrical conduit long enough for the fan to be tilted?

    A hinged fan makes cleaning easier and guarantees that both sides of the fan blades can be cleaned.  It also provides access to the vent line running from the roof to your hood.

Motor Bearings - Bearings should be greased when belts are changed to avoid motor seizure.

Motor Fan Belts - Belts should be inspected regularly and changed at the first sign of excessive wear.


Was my hood, duct and fan cleaned to bare metal?

    Cleaning an exhaust system to bare metal insures that there is no grease or lint spots left that could potentially catch fire.


What is NFPA 96?

    NFPA 96 is the National Fire Protection Associations standard code for ventilation control and fire protection of commercial cooking operations.