[magoon]

My electric bill has gone down over 30% per month after getting one of these. Replaced a super old electric unit. Many states have rebates that an installer can have applied when getting the part from the supplier. For me this cut the whole cost in half. It paid for itself in less than a year. And now my basement is dry and cool in the summer without running a dehumidifier.

You might ask, if these are so great then why aren’t people yelling it from the hilltops? They are, but nobody’s listening.

[yumraj]

You are comparing to an electric water heater. I think the cost saving is not much, from a ROI standpoint, if you have a natural gas water heater.

[koolba]

How’s it compare to a tankless gas heater?

[stevehawk]

Tankless heaters seem like the biggest over promise household tech I can recall in the last decade or two. I have not found over that I would even come close to breaking even on when replacing either of the water heaters in my house.

[ed_balls]

Tankless heaters heaters are great if you live in a small flat or don't use it extensively (living alone, half of the time taking the shower at the gym).

Currently, in my flat there is only district heating which is way cheaper (lower cost, no maintenance). It's really great, should be the default in high density areas.

[lotsofpulp]

Natural gas is the significantly cheaper option in my experience with residential and commercial properties, if there is a utility providing a line to the property.