[georgeecollins]

Here is my suggestion, given the size of the company and your role. Ask your boss to try and answer your work emails while you are on vacation, or send a reply saying you will get back to it when you are done with vacation. If he encounters something he isn't sure about, he can email you. That way you will only be bothered about things that really require your attention.

Offer to do the same thing for him when he is on vacation. This is a better strategy for co-workers, but since you are a small company you can see what your boss says. At the size you are at it is important that you offer to reciprocate what you are asking for, to show that you want to be treated fairly and appropriately.