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 ...
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I agree with this too. If the furnace is blowing air basically out into the outdoors through all the gaps in the underbelly, the makeup air has to come from somewhere which is from inside the TT via any gaps or roof vents thus creating a negative pressure. I hadn't considered that - of course, as hot air is going straight to the outdoors, cold air is also going to being sucked into the interior of our TT. It's like a double hit.
Have not found a damper for the flexible RV ducting yet. One thing I have noticed is that the air flow to the 3 outlets inside our TT are not balanced very well. The bathroom is toasty, the living area is kinda okay and the bedroom is on the cold side. I think balancing CFM inside would help a fair bit plus cutting back on or stopping air into the underbelly.
Our furnace is easily accessible since it's under a dinette seat and I could easily adjust or open up a damper for the underbelly duct run if it looks like it's going to get below freezing or it's not working as well as I'd like.
If I feel ambitious one day, I might take some of the underbelly material down and see what's in there. If we were to do a lot of cold weather camping, I would probably look at heating blankets for the tanks and heat tape for the piping plus upgrading insulation.
Have not found a damper for the flexible RV ducting yet. One thing I have noticed is that the air flow to the 3 outlets inside our TT are not balanced very well. The bathroom is toasty, the living area is kinda okay and the bedroom is on the cold side. I think balancing CFM inside would help a fair bit plus cutting back on or stopping air into the underbelly.
Our furnace is easily accessible since it's under a dinette seat and I could easily adjust or open up a damper for the underbelly duct run if it looks like it's going to get below freezing or it's not working as well as I'd like.
If I feel ambitious one day, I might take some of the underbelly material down and see what's in there. If we were to do a lot of cold weather camping, I would probably look at heating blankets for the tanks and heat tape for the piping plus upgrading insulation.
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.
