Advice on Range ventilation problem/possible solution


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Advice on Range ventilation problem/possible solution

janniecooks | | Mar 25, 2011 08:22 AM

We're considering a new house with an over-the-range microwave that doubles as the range hood. Problem is that the microwave is not vented outside. That's not going to work for me. It is not possible to ventilate up and to the outside, the only option is down.

We would replace the appliances, however, we must replace a range with a range - a cooktop and wall oven is not possible due to space limitations.

One obvious solution would be a down-draft range, but I had a Jenn-Air down-draft about 20 years ago; the down-draft was totally ineffective. There used to be a number of manufacturers of down-draft ranges, but my research has found only one now: Jenn-Air. And they cost about $2500. That's a lot of money to spend on an appliance that I know at the outset I will detest

Another solution we're considering, and this is where your advice is needed, is to install a traditional range hood, but select one that can be vented out the back (wall) side, and put an exhaust vent/ductwork through the drywall and down through the subfloor and out the space under the house. We would be creating a 90-degree bend in the ductwork inside the wall from the hood, and another 90-degree bend just below the subfloor to send the exhaust under the house and outside.

Is our down-ward exhaust solution feasible? Will it work and be more effective than a down-draft range? Or should I just accept the jenn-air solution? For what it's worth, the hoods we're looking at are all at 440cfm or higher.

Any advice you can offer will be greatly appreciated.

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