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Old 07-01-2014, 07:22 PM   #1
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Ductwork question

First trip out in new 38GK...there is what appears to be a round floor vent slightly behind toilet. It has foil duct work so I would assume it is part of the heating/cooling system. No cold air comes out, blew a candle out near it and it did not suck in smoke, so not an air return. Is this a heat only duct or is it not connected down the line? Aren't the heat and a/c ducts all common?
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Old 07-01-2014, 07:41 PM   #2
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It is a heat duct for your forced air furnace. The a/c and heat pump come from only the ceiling vents.

Ken
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Old 07-01-2014, 11:35 PM   #3
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Ken is right, and man did they put that in the right spot!!

Kick the fan on your furnace to test it. The furnace only supplies the floor vents. Roof ACs/heat pumps suppy the ceiling vents.
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Old 07-02-2014, 02:19 AM   #4
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Thanks, that makes sense. This is all a little much to figure out when you're new at camping in a self-contained rig.
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Old 07-02-2014, 09:12 PM   #5
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Good info ... thanks! That's on my personal, two-day post-delivery inspection. Pickup countdown - 8 days. Campground near RW dealer booked for four days for my full inspection. Owner is the former head mechanic for my dealership, and has very good relations with them still. I figure that's a "plus!"
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Old 07-03-2014, 02:20 PM   #6
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Record lows in KS this morning, turned on heat, set thermostat up about 8 degrees. Heated the coach real fast but the heat came out of every vent, ceiling and floor. Not sure if that is a problem (?) as it warms fast.
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Old 07-03-2014, 02:48 PM   #7
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Oh boy, turned off main heat, put on only FRONT heat (bedroom) and furnace kicked on and heat came on from ALL ROOF vents, front to back, NO floor vents. Front heat only cycles are very short, heating a couple of minutes, then off for a few.

This coach heats and cools, but do I have a problem I need to have fixed? Should I care where the heat/air comes from as long as it heats/cools?
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Old 07-03-2014, 03:38 PM   #8
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As stated:

the propane furnace heat comes from the floor vents...

the ac's heat pump/heat strips come from the ceiling vents...

We haven't stayed in it enough in the winter to really know...

I just know that between the heat pump and fireplace we were comfy the few times we did...

You say you turned on the heat - did you turn on propane furnace or heat pumps ?

and did you get TWO heat pumps or only one like we did?
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Old 07-03-2014, 04:01 PM   #9
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This is getting really weird. I turned off front thermostat, turned on main (living). Still blowing heat from roof only. Then I turned main thermostat OFF, the system switched from roof to floor vents, blew cool, not cold, air for 5 minutes and stopped.

John, yes we ordered heat pump option which on our order sheet states both a/cs. I am only trying electric heat so far. I also have two different thermostats. There is nothing on the thermostats about heat pumps. I don't really know if I have the heat pumps I ordered.

Boy do I feel stupid!
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Old 07-03-2014, 04:05 PM   #10
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johnboytoo is correct however there is one additional fact. If you set the thermostat to electric and temp and it is more than 4-6 degrees higher than the ambient temp, BOTH the heat pump (ceiling ducts) and the forced air furnace (floor ducts) will be producing heat. This is the only circumstance whereby you will have heat from both floor and ceiling.

The forced air unit will never supply heat through the ceiling and the air conditioning unit will never supply cooling through the floor.

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