Talk of The Villages Florida - View Single Post - Heat-Pump Water Heater
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Old 06-11-2020, 04:30 PM
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Originally Posted by Choro&Swing View Post
Thanks. I was passing on information from a nationwide magazine and from the Department of Energy web site. I didn’t run the numbers for the climate zone. I realize that number of occupants and temperature of water going in and gallons of water heated and to what temperature matter a lot.

So your hot water is actually costing only $12 to $15 a month? In that case, there would be no need for this, and the dollar numbers on the yellow tags on appliances in stores are way off base. Again, thanks.
Those energy costs are for us, now if you take multiple showers, remove the flow restrictor on the shower head, wash your dishes with running how water then that would be a different case.

I have three water monitors with one just on the hot water line. I use between 553 and 874 gallons of hot water a month. Now let's take two fiqures 50.00 a month (to arrive at 40.00 a month savings) or my 15.00. at my water consumption rates I am spending 2.1 cents a gallon to heat it or do you think it is 7.1? Is it more likely that a guy that monitors these sorts of things or someone who looks a a bill once a month has got it down?

Or do this simple quasi scientific test. Buy a countertop hot plate. They use 1500 watts. If you place a one gallon pot of cold tap water on it and time it. If it takes 24 1/2 minutes to increase the temp to 120 degrees then I am completely wrong. 24 1/2 minutes because that is 7.1 cents of electricity. Now, the heating element isn't submerged and the pot isn't insulated but you get the idea.

Or just use this estimator (spoiler alert it is two cents a gallon) https://www.google.com/url?sa=t&sour...PgLAybjF58cEI9

Finally, l'll use the fiqures of a frequent poster here who self identifies as frugal, to honor the forum rules no names. His annual bill is 1,800 for power. His May bill was 7X.XX for for 555 KwH. It is simply impossible to spend anything approaching 40.00 a month (341 KwH) to heat water.

So, how many gallons of hot water do you get for 50.00 with a standard water heater? 2,380. If you don't have a pool hot water is about 35% of your usage or a water bill for 6,800 gallons. Ask yourself what is your water bill.


Believe what you wish, puzzle me this though: is it cheaper to get a monitor for 300.00 to find out what that costs or spend over 2k and maybe be right?

All this said I am absolutely certain someone will tell me that I have it all wrong...

You are right, those yellow energy tags are only good for comparison not actuals and you simply cannot believe owners of a product as they want to feel great about their purchases.

Last edited by Toymeister; 06-11-2020 at 06:39 PM. Reason: Added additional facts and detail