Furnace Air Flow

[FireStarter]

I have an Adventurer 38T and the LP furnace is mounted in the back of the coach. Whenever I run the furnace, I can barely feel air coming out of the vents. The fan is on high. Is this normal?
Thanks

[FireStarter]

I have an Adventurer 38T and the LP furnace is mounted in the back of the coach. Whenever I run the furnace, I can barely feel air coming out of the vents. The fan is on high. Is this normal?
Thanks

[BBBEEBOP]

First of all the fan speed will not effect the LP Furnace Air flow. The HI/LO setting only effects the AC/Heat Pump. You should feel air coming out of the floor vents and it should get fairly warm. You didn't say if it was getting warm.

[FireStarter]

Yes, BBBeeBop, the coach does warm up, but I thought I would expect a higher flow then what there is..but if this is the way it is supposed to be then I am satisfied...
Thank you for your response.

[NeilV]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by FireStarter:
Yes, BBBeeBop, the coach does warm up, but I thought I would expect a higher flow then what there is..but if this is the way it is supposed to be then I am satisfied...
Thank you for your response. </div></BLOCKQUOTE>

There is a flapper in the ductwork that you can hear clank when you turn the heat on for the first time in the heating season. Some have mentioned that this flapper sometimes sticks and does not seat which can cause low airflow from the heating vents. Sometimes you may have to turn the AC blower and the heat on alteratively a few times to get it to loosen up if it is stuck.

You could check out a new 38T at your local RV dealer and see if there is any difference.

[DancinCampers]

If you have the Aux Coach heater, there should be a metal swinging door at each end of the ductwork. I would check the one at the opposite end, to make sure it is closed.

My door in front of the LP furnace was sticking, I had to remove the heater and adjust the end of the ductwork to square it up.

Check out

Damper Door

[rvcarpenter]

I know on mine I had to partway close the vents in the bedroom and bath and hall so as to have decent airflow up front. So you might try adjusting the floor vents, to get the flow you want. Before I adjusted mine I was getting huge flow in the bedroom and not much up front.

[kcaravelli]

I have good air flow in the first vent near the furnace which sits in the back of our Siuncruiser. I have air flow in the last vent in the chain which is up by the drivers seat. a couple in between those two locations don't have much air flow, one does. There are five vents total. I know sounds weird. I have just had our blower motor replaced on the gas furnace and it works fine. Not sure what it blocking things. I am wondering if those two vents in the middle are where the furnace has holes going down into the basements so the air flow is affected up into the coach on those two. But then why do I get good air flow at the end...funny.

[Duner]

My 39 ft Chieftain has the same furnace layout as the long Adventurers. When mine quite blowing altogether, I pulled the furnace unit out the rear and found one of the 4 inch round disc's had fallen out and a good portion of the air flow was taking a short path back to the intake. In my case the air was getting so hot that it blew out the over-temp thermal fuse that protects from melt down.

There are several of the 4 in round disc's that block off the unused outlets in the furnace unit itself since they are designed for many different input/output configurations. If they are not tight, they can vibrate, and rotate around and fall out. One of yours could have fallen out too. While in there I found a whole lot of construction debris in there including some large pieces of stryofoam caught in the squirrel case blower..... that can't be good for the air flow either, and knock it out of balance too.

Good luck,
Bill