WMH32519HB Whirlpool Microwave - What's the downside of leaving off the damper for roof venting?

[GregL65]

Model Number

WMH32519HB

Brand

Whirlpool

Age

Less than 1 year

I'm installing a Whirlpool model #WMH32519HB with roof venting:

https://www.whirlpool.com/kitchen/cooking/microwaves/over-the-range/p.1.9-cu.-ft.-capacity-steam-microwave-with-sensor-cooking.wmh32519hb.html

The damper looks amazingly cheap, noisy, and has large gaps for air to pass around it. Another poster here complained of the noisiness of the damper on a Whirlpool, also with roof venting:

FIXED - WMH53521HZ Whirlpool Microwave Damper Noise

Hi Guys, put in a brand new Model #WMH53521HZ and am venting to the roof. My problem. The cheap little damper that you screw on the top of microwave makes noise. After you shut off the blower fan, the door slams down and makes metal on metal noise. On a windy day, the think vibrates and...

www.applianceblog.com

What's the downside of leaving it off? Our roof vent seems well protected against direct blasts of wind. I've had the old microwave off for over a day now and don't really notice any draft; just feels a little cold when my hands are right at the opening. The old microwave, a Sharp, did not have a damper. We had it there for 20 1/2 years; never noticed any problem with a draft.

Thoughts?

 

[jeff1]

Hi,

*I* see no major or minor issue with leaving that off....as long as the house hood can prevent drafts and such.

JMO!

jeff sr.