Pesach Questions

1.How do I kasher my non self-cleaning oven (and the broiler below it) Do I need to kasher the broiler in order to use the oven since they are somewhat connected? 2. How do I kasher my non-stainless steel sink? 3. Can I use my regular shabbat warming plate on pesach? Do I need to cover it with foil? 

OK: (1) A self-cleaning oven is self-kashering as well, due to the extreme heat that it reaches during the self-cleaning process. Presuming that the broiler section is also reaching this temperature, then it too is automatically kashered. 

(2) A porcelain sink can't be kashered. You can either cover it with contact paper for Pesach, or use a snug insert into whose bottom you put a draining hole. (I have many memories of my father a"h, lining the sink with contact paper while saying, "there has to be a better way")

(3) Clean the surface of the hot plate thoroughly, and cover it tightly with foil for Pesach. 

RYK