[jnxx]

> I kind liked washing machines that properly heated to 90C

Washing machines sold in the EU can (we have one in the basement). But heating to 90°C is extremely inefficient if 60°C is sufficient, and it is in most cases (we are not any more using just soap for laundry like in the 19th century). In fact, recommended temperatures have fallen so much that it is now recommended to wash with 60°C once in a while to prevent mould and smell. And more and more clothes such as shirts and tresses, but even socks, have a washing temperature of 40°C recommended.

The wider issue is that energy conservation will not come by itself. Self-regulation will not give the speed of change that we need. With self-regulation alone, Americans would still use leaded gasoline which was obsolete in the 1960ies.