I curl against the radiator, pressing close in need,... it should be a period or a semi-colon at the end, not a comma

"and the/Clear metal burns my flesh and I cringe away, And back" all of those ands, just struck me as odd and the 3rd into 7th line seemed like a runon with all of those ands

I love the whole idea of this... the title is great and this need for a radiator is really interesting and well. I love how you described it. My favorite part was the last phrase... a bit unexpected since it was a new theme, but it fit perfectly and was an awesome end.

"even as I become lost"... how very beautiful. It makes me think of staying in a bad relationship because you don't want to be alone, or because it's become something of a habit. Lovely poem.

comforting, really.. nicely written!