Washer/Dryer

Go vented.
Actually ventless uses a condensate system. Basically it boils the clothes. All the moisture, or almost all of it anyway goes down the drain into your gray tank.
They barely work, but some people are scared to drill a 4 inch hole in their RVs wall. Thus ventless.
Vented units are much better. And as long as you do not overload the washer it will work very well. Albeit long cycle times.

Yes, vented.

Vented. I’d lose the dinette to put in a combo.

I have an unvented W/D. My next one will be vented.
Definitely get a vented unit.

Curious where it's going, ow long a class C is i?

Vented. The space inside is way too small to put up with that much moisture.

donn0128 gave a good description of the non vented. In addition they use a lot of extra cold water to condense the steam. Go vented.

Looks like I'm going vented. I have a 30ft, and we're thinking about putting it in the bedroom corner. We'll have to put in on a raised platform so it'll clear the corner of the bed. I'll measure it out this week. Most of the units are slightly under 24x24x33. Like I said, it'll be tight, but not a big deal to us.

Do you have enough weight capacity on your rear axle to ad this? Also side-to-side weight might throw off your balance.

I went to the CAT weigh station before last big trip. With a Full tank of gas, fresh water tank, 5 passengers, and 3-4 days worth of food/snacks, we were 1500 lbs under the GVWR I did not think about the side to side though. The unit is about 150 lbs, so I don't think it should be problem. If anyone knows something else I'm not thinking of, please advise. thanks again.