DIYbanter - View Single Post - What are currently your best saving tips ?

Rod Speed

zzzzzzzzzz wrote
Bob Eager wrote
zzzzzzzzzz wrote

Yeah - the heating costs are the significant part by far.

Nope, the detergent costs more, essentially because so little water is used.

And a dishwasher uses electric heating, whereas
hot water may be heated by gas, solar, wood etc.

It doesnt get hot enough by solar.

Dish washers are plumbed to the hot water.

Some are, some arent.

They get their water from the same place your sink does,

Only the cold water.

and less of it.

Many dish washers do have heaters to boost the temperature further,

And so starting with solar doesnt help much cost wise.

something you can't do washing by hand.

Corse you can.

Again, you're assuming the U.S.

Over here, dishwashers are usually cold fill.

That's dumb.

Nope. It works better to start with cold water so you dont bake
on what what is on the plates etc and to heat that from cold.

They use very little water, so often they would fill
mostly cold anyway, from water lying in the pipe.

He's right.

So you waste the water in the pipes either way.

Nope, not if the dishwasher heats from cold.

If you're washing by hand (with hot water) you're wasting all the hot water
needed to get the tap up to temperature, plus the water needed to do the dishes.

Yes, but not with a dishwasher that uses cold water.

Seems like an even stronger argument for a hot-water plumed dishwasher.

Nope.