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Old 02-20-2015, 07:15 AM   #1
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SHOW and TELL question

All of these threads about making and keeping our coaches warm enough not to freeze have my attention. I'm not familiar with how to do it enough to be comfortable, and don't know what resources to use that are available.

For instance, what do you see in this photo? Is the ductwork from a basement HVAC system, or is it for heating the basement, or what?

While we're at it, what do you see on the aft bulkhead?
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Old 02-20-2015, 07:32 AM   #2
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I see ducting. I see a vent for the bay, heating and cooling. I see power outlet and amplified TV outlet with 12V connector and a cable connected. I see what looks like a central vacuum plugged into the outlet. I'd like to know what else is plugged in to the outlet. Maybe the end of a hydraulic cylinder for a slide and another doodad on the frame rail forward I can't make out. Looks like a partially filled holding tank, too. Maybe a bay door safety switch on the far side. Cargo light.

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Old 02-20-2015, 07:42 AM   #3
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Thanks. Does this mean that the whole basement gets air conditioning?

If so, is there a way to shut basement ducts off during weather that doesn't require it?
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Old 02-20-2015, 07:50 AM   #4
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Hi Rick,

Firstly, I am not familiar with your rig (Mandalay) so may be entirely wrong. In my case (Newmar), the air conditioning and heat pump ducts are run along the roof, the furnace ducts are run along the floor. Again, could be wrong, but I believe the basement only receives heat from the furnace.

To your question, basement ducts typically have a manual open/close mechanism on them so you can adjust how much of the flow goes into the basement.
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Old 02-20-2015, 07:50 AM   #5
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Hi bamaboy473,
Heat = yes. A/C don't see it. Does the coach have rooftop A/C? If so, I doubt there is any A/C going to the basement.
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Old 02-20-2015, 07:58 AM   #6
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Quote:
Originally Posted by JFNM View Post
Hi Rick,

Firstly, I am not familiar with your rig (Mandalay) so may be entirely wrong. In my case (Newmar), the air conditioning and heat pump ducts are run along the roof, the furnace ducts are run along the floor. Again, could be wrong, but I believe the basement only receives heat from the furnace.

To your question, basement ducts typically have a manual open/close mechanism on them so you can adjust how much of the flow goes into the basement.
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Hi bamaboy473,
Heat = yes. A/C don't see it. Does the coach have rooftop A/C? If so, I doubt there is any A/C going to the basement.
Doh…rooftop air. You're both right of course.
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Old 02-20-2015, 08:19 AM   #7
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If its a heat supply it should be insulated. Big loss of heat.
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Old 02-20-2015, 08:23 AM   #8
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Quote:
Originally Posted by JFNM View Post
Hi Rick,

Firstly, I am not familiar with your rig (Mandalay) so may be entirely wrong. In my case (Newmar), the air conditioning and heat pump ducts are run along the roof, the furnace ducts are run along the floor. Again, could be wrong, but I believe the basement only receives heat from the furnace.

To your question, basement ducts typically have a manual open/close mechanism on them so you can adjust how much of the flow goes into the basement.
Our Mandalay's heat ducting must be in the overhead of the basement, because it isn't visible (seems a neater design).

However, if it were visible, then I could install ducts if I wanted them, so there's always a trade-off.

And, yes, we have two rooftop A/C units for hot weather.
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Old 02-20-2015, 08:27 AM   #9
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Both my fleetwoods have heated basement compartment. The forward furnace on both supplys heat via ONE non adjustable vent. OK if your using the furnaces during the winter but typically what happens is that when wintering people switch to electric heat and don't use the furnaces. When the furnaces are not used the water compartment never gets heat! What most people will do is place a 60 watt incadesent bulb in the heated compartment. "Should" keep your compartment ABOVE freezing.
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Old 02-20-2015, 02:26 PM   #10
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Hello Rick & Sand, that is a Peak Chassis from WRV used on the Alpine Coaches since it looks just like my Alpine. The ducting is for heating from a gas furnace. Several run through the bay into the interior of the coach front to rear. One is vented into the bay area to keep the holding and fresh water tanks from freezing. You can see a heating vent next to the 120 volt outlet. Since the bays are pretty well sealed from the elements the ducts keep the air warm. I never had a problem getting heat into the interior of the coach.

Aft of the Bulkhead are the Grey and Black Tanks, and straight ahead between the rails is the fresh water tank.
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Old 02-20-2015, 04:50 PM   #11
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Hello Rick & Sand, that is a Peak Chassis from WRV used on the Alpine Coaches since it looks just like my Alpine. I never had a problem getting heat into the interior of the coach.


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Well, would anybody believe that I said it was from a Travel Supreme just to test the crew? No? Well, OK, I goofed Dave is correct, that it's a photo of a 40FD Alpine's basement area. Nice to know that there's heat down there. Thanks for the correction!
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