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Old 03-02-2012, 09:32 AM   #31
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Venting an oven range microwave


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Yes checkout his pictures, let me check my ductalater.

We're not talking heating and cooling here we're talking just exhausting a little smell and steam from cooking, don't have to maintain temperatures and humidity and how many microwaves are vented with just recirculating rather than exhaust ? They do absolutely nothing.
Wrong and wrong. Above the range microwaves sit fairly close to the cooktop compared to range hoods. They are able to maintain this reduced clearance by by being capable of moving a certain amount of heat when things get going on the cooktop. Doesn't matter if you vent that heat outside or if you use the recirc option and vent it out into the room away from the cooktop, you are still moving a prescribed amount of heat from a critical area. These microwaves even have a overide thermostat that turns on the fan automatically when things get hot just in case you forget.

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Old 03-02-2012, 10:13 AM   #32
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Venting an oven range microwave


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Wrong and wrong. Above the range microwaves sit fairly close to the cooktop compared to range hoods. They are able to maintain this reduced clearance by by being capable of moving a certain amount of heat when things get going on the cooktop. Doesn't matter if you vent that heat outside or if you use the recirc option and vent it out into the room away from the cooktop, you are still moving a prescribed amount of heat from a critical area. These microwaves even have a overide thermostat that turns on the fan automatically when things get hot just in case you forget.
I agree. These are designed to move approximately 300 CFM either way.
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Old 03-02-2012, 10:14 AM   #33
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Venting an oven range microwave


How many cfm does the range move? If its much more than 250, 4" won't work very well. Can you still do it? Sure. But you're going to have some blowback because the vent isn't capable of exhausting as much as it flows, plus the added noise and wear on the fan, as hvac122 pointed out. If it were me, and the wall is open, cut out the brick and install a proper sized exhaust. Its not going to be easier to do it later

Last edited by Canucker; 03-02-2012 at 10:16 AM. Reason: more info
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Old 03-02-2012, 10:29 AM   #34
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Venting an oven range microwave


I guess the nature of these forums is that you have to work your way through varying opinions. But I think I like the sound of the last few comments the best.

I'm going to break open my wall a bit more to allow room for a proper sized vent. It will also let me move the mircowave slightly to the left which is a bonus. And I also want to learn how to do it, so why not take the opportunity and then be content to know that it's all vented properly.

Thanks for all the advice. I'll post some pics when it's all done!
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Old 03-02-2012, 07:03 PM   #35
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No one will criticize your work if you do it right---Keep us posted---you will be fine---
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Old 03-02-2012, 09:39 PM   #36
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Venting an oven range microwave


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I guess the nature of these forums is that you have to work your way through varying opinions. But I think I like the sound of the last few comments the best.

I'm going to break open my wall a bit more to allow room for a proper sized vent. It will also let me move the mircowave slightly to the left which is a bonus. And I also want to learn how to do it, so why not take the opportunity and then be content to know that it's all vented properly.

Thanks for all the advice. I'll post some pics when it's all done!
yes opinions vary..buy doing it right is truly the best option there is...as mike said keep us posted...
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Old 03-03-2012, 06:09 AM   #37
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Venting an oven range microwave


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I think this is the kind of microwave I'll be getting. I have a 3 1/4 x 10" vent but i would only be able to pass it through a 4" pipe to the outside. I know that they often require higher but I'm wondering if this 4" will just squeeze by and at the very least be better than not venting at all.
The answer to your question is Yes.
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Old 03-12-2012, 10:24 AM   #38
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Venting an oven range microwave


Thanks again for everyone's input. There have been interesting developments. I ended up putting in a new 3 1/4 x 10" vent. It was a pretty daunting task at first, but I managed my way through it.

If you care to take a look you can read about it in my ongoing project showcase: My full kitchen remodel! Lots of improvisation mixed with IKEA and exposed brick
Take a look at the whole showcase if you like, and feel free to leave feedback, but the vent specific posts begin towards the end of page 2.

If you want to avoid any reading you can also just look at the photos here:
http://www.diychatroom.com/members/d...-kitchen-vent/
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Old 03-12-2012, 11:27 AM   #39
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Be proud...nice job.
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Old 03-12-2012, 07:08 PM   #40
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Venting an oven range microwave


Well done! Looks good. Time to go into the business I guess.
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Old 03-12-2012, 09:42 PM   #41
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Venting an oven range microwave


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Be proud...nice job.
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Well done! Looks good. Time to go into the business I guess.

Thanks for the kind words! Not sure if I'm ready for the business just yet, but thanks for the encouragement.
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Old 03-12-2012, 09:47 PM   #42
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Venting an oven range microwave


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Thanks for the kind words! Not sure if I'm ready for the business just yet, but thanks for the encouragement.
really nice job...how high up is that?
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Old 03-13-2012, 05:51 AM   #43
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Venting an oven range microwave


Looking Good just like a Pro did it.
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Old 03-13-2012, 11:01 AM   #44
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Venting an oven range microwave


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really nice job...how high up is that?
Hey thanks. I would say it's about 20' up. It's for a kitchen on the second floor. The height wasn't a problem for me, just the steepness!
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Old 03-13-2012, 11:02 AM   #45
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Venting an oven range microwave


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Looking Good just like a Pro did it.
Thanks. Maybe that's what I'll tell people and see if I can fool them. How much do you think a pro would charge for a job like this? It took me a long time to complete but I imagine they could bop it out in half a day or so.

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