Tom Womack

I agree that electricity is less efficient than gas for heating water, but there was an implicit 'carbon-free' in my argument. I don't know how likely it is to be sensible to have fossil-carbon-free gas coming through the pipes into the house to be burned for heating water directly, so I think that means the choice is between {nuclear, hydro, wind, tide, solar}-generated electricity heating resistors heating water, or sun heating black pipes heating water. The sun has it.