Getting Hot H2O to Kitchen Sink.

[Mjs57]

Hello All,
I'm trying to eliminate the time it takes to get hot water from 50 gal. electric heater
to the kitchen. I waste a couple of gallons every time the line cools down.

I'm thinking of insulating to pipe run and putting a small point of use heater under the sink.
I figure the point of use would heat the water initially until water from the main heater made its way
to the sink.

Any thoughts on this approach, other suggestions?

 

[Breplum]

Insulation helps very little...keeps water warm for only a slight amount of time.
A properly sized point of use will provide unlimited hot water but the higher the gpm, the more amps required, so you can't just use the GD outlet.
A simpler but not great solution is to use a pump with bridge like https://www.homedepot.com/p/Grundfo...916/302859594?source=shoppingads&locale=en-US
Better yet: https://laing-thermotech.com/plumbi...ies-undersink-pump-for-potable-water-systems/
However!!! these systems leave your cold water line with warm/hot water and that causes many users to be ultimately unhappy.
A way around that can be to create a pushbutton system activation using a garbage disposal air switch to turn the pump on only when desired.

https://www.amazon.com/Disposal-Insinkerator-Disposals-Essential-Values/dp/B0728BB4ZM

 

[Sponsor]

 

[Mjs57]

Insulation helps very little...keeps water warm for only a slight amount of time.
A properly sized point of use will provide unlimited hot water but the higher the gpm, the more amps required, so you can't just use the GD outlet.
A simpler but not great solution is to use a pump with bridge like https://www.homedepot.com/p/Grundfo...916/302859594?source=shoppingads&locale=en-US
Better yet: https://laing-thermotech.com/plumbi...ies-undersink-pump-for-potable-water-systems/
However!!! these systems leave your cold water line with warm/hot water and that causes many users to be ultimately unhappy.
A way around that can be to create a pushbutton system activation using a garbage disposal air switch to turn the pump on only when desired.

https://www.amazon.com/Disposal-Insinkerator-Disposals-Essential-Values/dp/B0728BB4ZM

Insulation helps very little...keeps water warm for only a slight amount of time.
A properly sized point of use will provide unlimited hot water but the higher the gpm, the more amps required, so you can't just use the GD outlet.
A simpler but not great solution is to use a pump with bridge like https://www.homedepot.com/p/Grundfo...916/302859594?source=shoppingads&locale=en-US
Better yet: https://laing-thermotech.com/plumbi...ies-undersink-pump-for-potable-water-systems/
However!!! these systems leave your cold water line with warm/hot water and that causes many users to be ultimately unhappy.
A way around that can be to create a pushbutton system activation using a garbage disposal air switch to turn the pump on only when desired.

https://www.amazon.com/Disposal-Insinkerator-Disposals-Essential-Values/dp/B0728BB4ZM

Thank very much for your response. The Autocirc set up seems like a reasonable idea. I would probably just remove the GD use that power source and have a switch available if needed. Garbage disposals are one the most useless devices ever made :}