Furnace plenum question

[The Other Gary]

2006 Georgetown 340 SE, I was vacuuming out the furnace plenum in the floor today, looks like it has never been done by what I got out. I noticed by the most forward floor vent approx. by the dinette there are two approx. 2 inch round holes in the plenum to let heat out to somewhere.
I have no idea what they service or what they are intended to keep warm underneath the floor. Neither do I have any inclination to crawl underneath the rig if someone has an answer. Thanks in advance if you know.

[MGD1961]

Originally Posted by The Other Gary

2006 Georgetown 340 SE, I was vacuuming out the furnace plenum in the floor today, looks like it has never been done by what I got out. I noticed by the most forward floor vent approx. by the dinette there are two approx. 2 inch round holes in the plenum to let heat out to somewhere.
I have no idea what they service or what they are intended to keep warm underneath the floor. Neither do I have any inclination to crawl underneath the rig if someone has an answer. Thanks in advance if you know.

Don’t know for sure but that may be your “4 season package” to warm the tanks and plumbing in cold weather??

[Capacitor]

https://www.amazon.com/Torin-AR7565B...%2C406&sr=8-15

[Cdefrees]

MGD1961, is correct as the furnace will blow warm air down on your tanks. Hope this helps