Basement insulation and 120V cooktops

[Matias Pereyra]

2 things that I need suggestions and counsel on:

1.  What kind of insulation works good for a basement?  Is the polysterene boards any good, or should I go with another type of insulation?

2.  In the process of finishing up my basement I want to put in a small kitchen and have been looking into different types of ranges/stoves.  Instead of installing 220v I was exploring the option of putting in one of those 120V cooktops, has anyone used these are they any good?  I don't think the tenants will be cooking much honestly and I think this would be a more cost effective option.

Comments/suggestions are very much appreciated.

Thanks!