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lol oil and lubricants put out heat? or they put off some sort of bad gas that negatively affects plant growth? oils and lubricants that are sealed in bottles and cans?
idk what kind of hot water heater you have but mine is well insulated. you can touch it sit on it w/e you want. its just a big can in the closet. i have had race trailer decals (paper) spare tires and plastics sitting on top of it since august. if it were putting off any heat they would be ruined.
i think you are trying to give advice about things you don't know much about. im sure you know how to grow weed but its obvious you know nothing about oils and lubricants (<----thats the funniest part of what you said) or new hot water heaters.
mine doesn't have a pilot light, its electric.
so thanks for trying to help, but i will take it from here.