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this post was submitted on 22 Jul 2023
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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.