hot weather cooling

[dogvetia]

we currently are in a basement air Winnebago motorhome and a little discouraged by it ability to cool the interior while setting in the sun at 96 degrees outside. Maybe I am unrealistic to think it should be cooler than 85 inside. Thinking of moving to a 5th wheel. Is there a brand or model capable of staying 75 or lower in the above scenario? If so what is your recommendations? Tom

[Cummins12V98]

dogvetia wrote:
we currently are in a basement air Winnebago motorhome and a little discouraged by it ability to cool the interior while setting in the sun at 96 degrees outside. Maybe I am unrealistic to think it should be cooler than 85 inside. Thinking of moving to a 5th wheel. Is there a brand or model capable of staying 75 or lower in the above scenario? If so what is your recommendations? Tom

We stay comfortable in 122 degree weather with 3 Dometic AC units on our 40' DRV.

[fulltime5er]

A dehumidifier will help a LOT. The first function of an AC is to remove humidity. If you help it do that with the dehumidifier, it will greatly improve the function of the AC.

[jdubya]

If there is no a/c unit in the bedroom, there is a good chance that they have allowed for one to be installed. Check to see if it was an option on the unit you have. If it was there is a good chance that the wiring is installed and all you have to do is hook it up.

For example Atwood Air Commander is 15K with heat pump non-ducted for under $700 and it would only require ac power to the hole where it mounts. Of course the roof has to be able to stand the weight but it only weighs 86 lbs.

[msmith1_wa]

I am not familiar with your particular brand, but I would expect it to be at the breaker panel. It might already have a breaker.

[monamichaels]

Where does the wire located by the bedroom roof vent terminate? I'm installing a roof A/C and the wire is there but I don't know where it goes. I called Alfateers and the person I talked to could not help. Has anyone else had this problem and solved it?

[monamichaels]

Help!!! I have a 2003 Alfa Gold 5th wheel and the A/C does not keep the bedroom cool. When I was on Alfa5vers (which seems to have disappeared) I read many complaints about hot bedrooms. We bought a roof mount as many had suggested and there is a wire at the vent but we can't find where it goes. We called Alfateers and they didn't know either. Has anyone out there installed a roof mount A/C on their Alfa 5th wheel and can give us direction's on how to connect? By the way, did I mention I need this information by tomorrow?

[Happytraveler]

dogvetia wrote:
we currently are in a basement air Winnebago motorhome and a little discouraged by it ability to cool the interior while setting in the sun at 96 degrees outside. Maybe I am unrealistic to think it should be cooler than 85 inside. Thinking of moving to a 5th wheel. Is there a brand or model capable of staying 75 or lower in the above scenario? If so what is your recommendations? Tom

We solved it by getting an Atwood 15,000 BTU Air Conditioner for our 35 ft. Motorhome. We have basement air too and running two air conditioners makes a big difference.
My sister has a 35 ft. 5th wheel and having an Atwood air conditioner installed in her kitchen area where the fan is located. The ducted air conditioner is not keeping up when the temperature is over 100 degrees outside. She blames it on the high ceilings in the 5th wheel.

[overhill7]

If yours is a single air it may be doing all possible. Very important to make sure any window shades are down.

[overhill7]

On our 39 ft Montana the main air will hold it to 73 degrees until about 85 degrees. At that point the front air will start kicking in and out to help. At 100 degrees they are both running .

[Impulse24]

dogvetia wrote:
we currently are in a basement air Winnebago motorhome and a little discouraged by it ability to cool the interior while setting in the sun at 96 degrees outside. Maybe I am unrealistic to think it should be cooler than 85 inside. Thinking of moving to a 5th wheel. Is there a brand or model capable of staying 75 or lower in the above scenario? If so what is your recommendations? Tom

The amount of glass especially the windshield causes big problems with regards to cooling. Perhaps as well as using the curtains you should invest in or make a cardboard windshield shade placed in front of the curtains would reduce heat absorption. You may also want to pad the over head vents to stop further heat problems.

[magic43]

Just out of curiosity, what color is the Winnebago Motorhome? The newer "trendy" RV's seem to be black or a variation thereof. I would imagine that they are increasingly harder to cool.

[RAS43]

Dennis12 wrote:
From my research, it appears that a vent output temperature of 40°F to 45°F (4°C to 7°C) measured after driving for 10 minutes at 45+ mph would be reasonable on a 85°F (29.4°C) day with 70% relative humidity. Measurement would be taken from a console vent using a precise stick & dial thermometer. You can check your AC buy doing this and then go from there

Good explanation for a dash A/C but the OP is asking about the house unit since he mentioned that it is a basement unit.

[sayoung]

dogvetia wrote:
we currently are in a basement air Winnebago motorhome and a little discouraged by it ability to cool the interior while setting in the sun at 96 degrees outside. Maybe I am unrealistic to think it should be cooler than 85 inside. Thinking of moving to a 5th wheel. Is there a brand or model capable of staying 75 or lower in the above scenario? If so what is your recommendations? Tom

Size of mh , (1) AC or 2, any shade, all slides out, blinds closed.
Our Jayco is 35 ft & has the polar insulation package & 2ac's. we have been comfy in 100+ days. Have the system checkedd

[JAC1982]

Are you turning it on after it's already hot out, or do you turn it on earlier in the day, before it's maybe really needed? We find that if we turn it on to say, 65, in mid-morning before the peak heat, it helps keep it cooler even when it's 95-100 outside later in the day, since the AC doesn't have to work as hard since it's been on already.