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Converting To Ductless

This post will focus on the different ways to convert your ventilator to a ductless or recirculating ventilator. First and foremost, we recommend venting outside when possible. If venting outside is not possible, we have multiple options to convert your ventilator to ductless.

The first step is choosing the appropriate ductless kit. We offer three ductless kits. One is designed for the Broan 250 CFM ventilator, one is designed for the Broan 390 CFM ventilator and the third is designed for the Ascension 350 and 500 CFM ventilators.

The ductless kits include a charcoal filter, HVAC piping, stack boot, and vent plate. These are all the materials needed to double filter your cooking fumes and redirect them away from the cooking area. Remember that your cooking fumes must be recirculated and vented somewhere outside the hood. Allowing the ventilator to recirculate inside the hood may slowly cause damage to the interior structure and jeopardize the integrity of the range hood.

There are three different methods of recirculation. You can recirculate the air out the top of the hood, the side of the hood, or through a soffit when applicable. Below we will go through each method in depth.

Venting Out The Side Of The Hood

The most common method of recirculation would be to vent the cooking fumes out the side of the range hood or chimney extension. This would involve cutting a hole in the hood where the vent plate would sit. See the diagram below.

SY-HVA-SDK Ductless Conversion Kit for Ascension Ventilators Side Venting Diagram

Here are a few application pictures showing a vent plate installed in the side of the range hood. This customer used a custom round vent plate that is more decorative than your standard grille plate.

Below is another picture showing a more classic vent plate. Both options are equally acceptable and it comes down to the visual you are looking for.

Product: SY-WCSLR-WW

Another option would be to cut tiny holes in the side of the wood hood or chimney extension. This method can be used in place of the vent plate as long as you are able to secure the HVAC piping to the side of the hood so the air can release through the holes. This is less conventional but is still a viable option.

Product: SY-WCSLR-BK

Venting Out The Top Of The Hood

Venting out the top of the hood leaves the vent plate invisible. Simply install a plywood cap on top of the wood hood or chimney extension piece and cut a hole that will fit your vent plate. Using a plywood cap allows you to securely keep the ducting in place. See the diagram below.

SY-HVA-SDK Ductless Conversion Kit for Ascension Ventilators Top Venting Diagram

Venting Out A Soffit

Venting out a soffit is a great method when applicable. Simply run your HVAC piping up the hood and use a 90 degree stack boot to direct the air out the soffit. See diagram below.

SY-H357NDK Ductless Kit for Broan 390 CFM Ventilator Diagram
Product: SY-WCVS

If you have any questions please don’t hesitate to contact us. Each ductless conversion kit has directions to help make the process as easy as possible.

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