We have a mini-fridge and coffee makers in the room. We nixed micro waves because we really didn't want guests cooking in the rooms. Cleanup is bad enough with the coffeemaker. I'm constantly cleaning up coffee spills on the carpet. We didn't want the added joy of cleaning the microwave.
We have a fire pit that guests are free to use, so most of the cooking, if any, goes on there. Most just go and eat at the local vineyard.
If you simply must have all these appliances in the rooms make sure your electrical service can handle it. If you're not sure, consult an electrician.
If you have a microwave sitting on top of a mini-fridge they really should be on separate circuits. This is especially true if the rest of the rooms circuitry is on a ArcFault circuit. Appliances WILL cause nuisance trips of the circuit breaker every time..
We have a mini fridge downstairs, along with a coffee maker and a pot for water. Did I mention the tiny microwave sits on top of the mini fridge? This is in the common area as you walk in the door.
I have had circuit problems when I have the GE Advantium microwave on the same time as the toaster, the same time as the electric portable griddle. Threw me a fit the first couple of times the powerstrip breaker, or the regular one tripped. Wasn't sure just what went wrong and how to fix it.
Occasional burned popcorn, otherwise, not much that goes wrong.
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