This questions offers great potential regarding a deity, yet those proponents of theism and gnostic thought will differ in view, at least. God is in small caps, so my first thought is on the myths, while not presuming any other g(G)od is myth - Buddha, Elohim, Mohammed, the many precepts of the Hindu faith could be considered too, and I'm sure more like the many tribes of native Americans.
Controversy surely will resound as a gong when considering ancient texts of the Hebrew faith. Rising in many sects of society, cultures, sub-cultures of deism is the question of relationship between Elohim and Asherah. That would certainly cancel the element of male while disregarding heaven with the discussion if accepted as foundational and a 'truth.' Yet, that too relies on supposition.
Or, in essence the question actually answers itself. 'If god is a male who('s) exists in heaven' is conditional. The conditions stated are 'god is a male and heaven exits.' The word 'If' is not the precursor to the question. The question is 'isn't he a finite being like the rest of us?' For god in the question to exist god must be finite by the conditions presented.
One could say it comes close to presupposition and the either / or fallacy. An odd thought with religion is that most deities do have human connection and condition. Examples are Jesus was a human, Buddha was a human, Mohammed was a human. Or, does god(s) exist as essence and ethereal within the confines of a finite universe or is non-existent and outside the confines of finite universe.
Another interesting thought is most god(s) are always within an ancient system of belief(s) and faith(s). Not all of those god(s) of myth or otherwise begin at the beginning, yet are transcendent with the action of time. It kinda' goes with that old adage you cannot persuade an atheist god does exist by preaching the bible. The discussion as an argument of persuasion is mute. An atheist does not accept, acknowledge, nor believe of god much less in a god. Therefore any book written by a god is non-existent other than literary value with discussion.