T1 One way energy storage. This item will accept heat from exchangers or rods and remove it.
It's one way just like SHA9001 and cannot be cooled down by conversional means, you must "repair" it by redstone. Redstone dust will restore 10k heat per item (2 dusts to restore to full);
Max capacity is 19999, also this item won't completely burn up, merely staying inside reactor grid with 1 health.
See: Crafting Guide