With large amounts of heat in your home, you can do cogeneration (combined heat and power). Heat some water via oxidation, produce electricity with the steam, c

With large amounts of heat in your home, you can do cogeneration (combined heat and power). Heat some water via oxidation, produce electricity with the steam, collect the excess heat to keep the house warm. And you can do that all winter long as long as your basement is full of iron powder. And in the summer, you reduce the iron oxide again with excess solar power. (That's not what they want to do here but that would be the idea)