Roof ventilation ????

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Joined: Thu Oct 15, 2015 7:13 pm

Roof ventilation ????

Post by shboisr3560 » Thu Oct 15, 2015 7:51 pm

First time owner here. I recently purchased a manufactured home approx. 26' x 64' with vaulted ceilings, no attic space. in the Calif. Sierra Foothills.
For the most part, I have figured out how everything works . . . . But, the one thing that has me puzzled is some sort of vent (i think) on the roof. There is no "grill / louver" on the inside, under this vent and the vent is powered with no switch. Sometimes I can hear it running, other times it does not. Most often I will heat it running very early in the morning.
Can someone tell me what this might be, the principal behind it's operation and what controls it?
Thanks for any help.

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Joined: Thu Oct 08, 2015 2:54 am

Re: Roof ventilation ????

Post by annexasia » Mon Oct 19, 2015 3:14 am

Don't make your roof ventilation broken. just carry some cement and wooden blocks and fix it where you want make ventilation.

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Joined: Wed Jun 14, 2017 3:43 pm

Re: Roof ventilation ????

Post by deanmaycock » Wed Jun 14, 2017 10:52 pm

Sounds like you may have the "Blend Air ll System". If you have a Coleman furnace pull off the face and look for a control box.
U tube has several videos on the system.
There should be a vented top on the stack.

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