Converting to tankless electric water heater


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Old 12-18-18, 02:33 PM
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Converting to tankless electric water heater

I have a 20 year old home with a 30 gallon standard electric water heater. I want to change to a tankless electric water heater. Can I just select any tankless and have it installed or do I need to plan on significant plumbing and electric service modifications? Will the existing electric connections be adequate? Understand there will be minor plumbing necessary. Hoping to gain space where the tank is located. What kind of costs are likely? Two person home.
 
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Old 12-18-18, 04:32 PM
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You need to shop carefully and do your homework. The plumbing part is the easiest. Many of those electric tankless units need high current to operate. Some use 60A at 240v and up to 120A at 240v. No..... you can't reuse your old water heater supply.

You'll need to make sure that with your current home load..... your panel/service can support a tankless. Many times a 200A service is required when considering a tankless heater.
 
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Old 12-19-18, 06:36 AM
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Humbug. That makes it a much more costly conversion. Thanks for the info.
 
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Old 12-19-18, 06:58 AM
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Electric requirements for tankless electric water heater

Currently have a 30 amp 240 volt service to standard electric storage type water heater. What is required for a tankless electric water heater? This is for a three bedrooms two bath home. Will we need to have new wires run to the location? Panel is 200 amp.
 
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Old 12-19-18, 07:40 AM
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It depends on your location. For most an electric tankless is a bad idea as winter groundwater is too cold to heat up quickly enough with a tankless.

Top end tankless water heater requires 150amps which would require a service upgrade.
 
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Old 12-19-18, 08:55 AM
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Ok, I will stay with the old storage type. Thanks
 
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Old 12-19-18, 08:19 PM
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I have merged these two threads.
 
 

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