Also how are they flushing toilets washing dishes and doing laundry??

Nothing major - a fun-colored pot, dish towels, a bowl of colorful fruit and flowers in the kitchen; a shower curtain and towels in the bathroom; etc.

I don't have a dishwasher or anything, so when I do dishes by hand, I'd pop on a Biggerpockets podcast episode.

Dishes can be shared if everyone is OK. 

There was not enough for dishes...I finally replaced the 15 year old water heater myself and didn't renew the policy.FWIW, , I was told by that code enforcement officer that American Home Shield gave him problems, as well as other people he knew, and apparently are/were the defendants in (various) lawsuits.

I'm doing dishes/laundry - I'm watching videos about working my business.

We'll leave the light on for ya. everytime I connect through Houston and walk up the jet bridge it smells like mold and a petrie dish.. no thanks too much humidity there I spent a year in Jackson MS that was enough humidity for a life time for me.

I cook all dinners and most all breakfasts.. this morning a few eggs and sweet potato pancakes.no one I mean NO one is allowed to touch my cast iron skillets.. they are seasoned to perfection.. and then I use my green egg at least 5 nights a week for whatever protein I am going to cook.. plus I do the dishes.. 

Yes they are supposed have endless hot water but they can only heat it so fast and a smaller unit will not keep up with a shower and the clothes or dish washer.One of the biggest problems for tankless water heaters is improper installation especially for natural gas versions.

Relax and clear your head while doing the dishes.