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Matt S
I usually heat my hot tub up during the day if i plan to use it that night, and then when im done i will usually switch the heater off and just leave the filter pump to run; it would typically be off for two or three more days (water would cool) and then i would put it back on to use it again. Will it be more energy efficient to just leave the heater on permanently so that the thermostat can maintain a constant temperature?
Answer
My best guess is no, but it's only a guess. Water will slowly cool anywhere and especially if it's being continuously circulated all the time too. It would depend on many other factors also. It may only cost you a few bucks more a month or it may cost you much more. That's a lot of water to keep heated too. If you want to be sure and you want to invest some money you can buy a portable meter that will monitor the electrical use on any appliance to measure the amount of electricity it's using and calculate the cost. I've seen them sold in home improvement stores in the electrical department and online. There are many different brands, models, & prices too. Try not to buy one made in China, I've bought many items & tools made in China and all of them failed me in some way. Good labor I'm sure, but very poor materials &/or very poor quality, especially in electrical/electronic items.
The below estimate is if the hot tub does not run continuously. The monthly costs are based on an average time the hot tub is fully operational. These times may vary depending on your usage habits and the electric rate in your area.
Estimated Average Operation for Typical Time Used:
Wattage (Hrs/mo.) ($/mo.)
Hot Tub (indoors) 1,500 90 $12.15
Hot Tub (outdoors) 1,500 360 $48.60
My best guess is no, but it's only a guess. Water will slowly cool anywhere and especially if it's being continuously circulated all the time too. It would depend on many other factors also. It may only cost you a few bucks more a month or it may cost you much more. That's a lot of water to keep heated too. If you want to be sure and you want to invest some money you can buy a portable meter that will monitor the electrical use on any appliance to measure the amount of electricity it's using and calculate the cost. I've seen them sold in home improvement stores in the electrical department and online. There are many different brands, models, & prices too. Try not to buy one made in China, I've bought many items & tools made in China and all of them failed me in some way. Good labor I'm sure, but very poor materials &/or very poor quality, especially in electrical/electronic items.
The below estimate is if the hot tub does not run continuously. The monthly costs are based on an average time the hot tub is fully operational. These times may vary depending on your usage habits and the electric rate in your area.
Estimated Average Operation for Typical Time Used:
Wattage (Hrs/mo.) ($/mo.)
Hot Tub (indoors) 1,500 90 $12.15
Hot Tub (outdoors) 1,500 360 $48.60
What size tank less water heater would I need for a 3 bedroom, 2 bath house with 4 people living in it?
Rod Knocke
Also, what brands are better than others? I am looking for an outdoor water heater.
Thanks
Answer
Tankless water heaters are sized in Gallons per minute. There are several good sizing guides on the web.
It would seem that for 2 tubs (4gpm) and 1 sink (1gpm) and a dishwasher (1gpm) a minimum size would be 6gpm. But that is the LOW side. Move up to 9gpm and you will probably never run out of hot water.
Note that you only want to go with LP or gas when doing a whole house tankless water heater. electric tankless would run higher electrical bills than a conventional electric hot water heater just to get the water hot enough for the high flow rates.
And yes they DO make exterior tankless hot water heaters.
Tankless water heaters are sized in Gallons per minute. There are several good sizing guides on the web.
It would seem that for 2 tubs (4gpm) and 1 sink (1gpm) and a dishwasher (1gpm) a minimum size would be 6gpm. But that is the LOW side. Move up to 9gpm and you will probably never run out of hot water.
Note that you only want to go with LP or gas when doing a whole house tankless water heater. electric tankless would run higher electrical bills than a conventional electric hot water heater just to get the water hot enough for the high flow rates.
And yes they DO make exterior tankless hot water heaters.
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Title Post: Is it more energy efficient to leave my hot tub heater on permanently?
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Rating: 92% based on 9172 ratings. 4,3 user reviews.
Author: Unknown
Thanks For Coming To My Blog
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