Heated underbelly - do we really need ours?
We camped in the coldest weather we have so far on the past weekend and the temp. got down to just above freezing. The furnace ran non-stop all night and most of the time in the day. I *think* what ...
Forum Discussion
mosseater wrote:Lynnmor wrote:Old-Biscuit wrote:smkettner wrote:
Pushing warm air under the RV will create negative pressure in the RV that will increase the feeling of being drafty as cold air is drawn in.
You do realize that while 'pushing' warm air under the RV warm air is being 'pushed' into interior of RV at same time?
Furnace blows air thru all ducts when it operates so rv is really under forced draft (pressure) condition.
Nope, smkettner is correct. There will be negative pressure in the trailer as air is being pushed outside thru the openings in the belly.
Yup, +1 for slight negative pressure. I have to wonder if it would be felt very much, unless the underbelly has huge holes in it. I was surprised to find the duct that leads to the underbelly, but I can see no return, so it must be pressurizing the underbelly. How hard would it have been to include another hole, even a smaller hole under a cabinet or back to the main return. Seems to me it work a lot better with more flow.
My underbelly does have a return...comes up around fresh water tank (last tank location in underbelly) into kitchen cabinet then return air to furnace flows along roadside wall back to basement area and furnace.
So yes there will be a slight induced draft as the air flows/circulates thru-out.
