Infinite chemreactor
The Infinite chemreactor is a quest reward item.
It generates 75 chemfuel every 10 days as long as it is powered by 300W.
Usage
It is a very slow way of obtaining chemfuel, especially in the mid-game stage where you're most likely to get this item. It only generates 7.5 chemfuel a day, compared to 150 every time a deep drill extracts it, 35 for every batch made at a refinery or 10 per day extracted from a boomalope.
8 infinite chemreactors can generate enough fuel to power 15 chemfuel generators, for a total power of 12600W.