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The electric one is a pretty big design change.
Interesting what industry says on it:
PS if you want to reduce your hot water usage, turn off the shower while you're soaping. I've got my shower down to like 1 minute of running water. Wash clothes on cold.
impossible for a tankless heater maybe, but Jesus the amount of power those things draw
When it’s on. When you aren’t using it, it draws zero. I’ve had a tankless electric for 8 years, and my power usage hasn’t changed much either up or down.
Certainly much more than a heat pump based system
I doubt the energy savings would cover the cost difference in my case, and even if it did it’s worth a little extra to never run out of hot water.
I’ll stick with the tankless.
its somewhere like 3x more efficient, and for environmental standards, I'm sorry but your personal preference shouldn't really matter. 3x is 3x
Storage water heaters can also capture off peak or curtailed energy (acting as 6-12kWh of diurnal storage), so they are more than 3x better in terms of emissions.
Heat pump water heaters already exist, but I think they're pretty expensive compared to gas/resistive heat.
I wouldn't be surprised if electric tankless water heaters are indeed infeasible under this mandate. Heat pumps generally aren't powerful, and tankless heaters require enormous amounts of power while in use.
Heat pump water heaters are pretty standard in large parts of the world. They are a bit expensive to install, but with today's electric prices, they pay off quite fast.
It may exist but to require it is a whole different ball game.
If you really wanna reduce your hot water usage take a cold shower...
Depends on the temp, I mean to measure it but around here I think it's close to 0 C.