E450 heat from engine cover

I have a 2008 29' Winnebago Outlook with V-10. I have not noticed any heat from the doghouse but do get considerable heat on the floor between the seats. I assume that is from the exhaust system.

I have a 2011 chassis on my 2012 24' E-350 with the 6.8L V-10 and in 32,000+ miles we have yet to experience noticeable engine heat in the cab. Keep in mind we live in Tucson and spend far more time in triple digit temps than most folks.

You might want to check the actual engine temperatures you're operating at. The dash gauges are notoriously optimistic and rarely reflect accurate temps until just before they redline. A Scan Gauge {or other similar device}, will give you precise info. I run with mine displaying engine coolant and trans fluid temps along with average and real time mpg.

Even in triple digit weather we rarely see much over 200 degrees from the engine or trans unless we are on a long steep grade and they drop like a stone was soon as the load is reduced.

I usually drive, and DW says the passenger side is warm but hasn't actually complained about it. When she drives, I don't notice the heat. That said, I can offer a few notes based on what I've read:

Passenger side is usually the hot side

Some have had success with sheet metal baffles. Our 2002 E450 has them.

Be sure the doghouse is properly installed. Tight, gasket not damaged, nothing interfering with seal between doghouse and gasket.

This is a caution from my own understanding: If you add insulation, Do Not reduce the limited air flow that's already part of the "van nose" design. Vans and Class C's warp and break manifolds and mounting fasteners more than pickup noses. Restricted air flow. Should be OK to add insulation to the doghouse or the floor pan. Just don't wrap the engine in it.

Fat Mat, can be found on Amazon.

How old is it?? Usually there is a an insulation blanket under the cover, It may have fallen down or blown out. Probably need to remove the engine cover and check. Might be serious, but probably not.