help me wire this system

Discussion in 'Electrical and Wiring' started by frodo, Sep 25, 2017.

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  1. Sep 27, 2017 #21

    frodo

    frodo

    frodo

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    I do not like a timer system,
    It comes on weather you are home or not, it wastes energy
    a motion sensor does not waste energy, and you will have hw within 5 seconds

    Or a system that constantly circs the water

    I will stick with a low voltage motion sensor. it is more to my liking

    the pump tied into the light switch of a bathroom works great if you are just doing 1 bathrom
     
    Last edited: Sep 27, 2017
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  2. Sep 27, 2017 #22

    nealtw

    nealtw

    nealtw

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    Have a look at this switch/transformer
    http://www.homedepot.com/p/Honeywell-120-Volt-Switching-Relay-RA89A1074/100400826
     
  3. Sep 27, 2017 #23

    Snoonyb

    Snoonyb

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    Yes, and the other down side, you have to actually be aware of the schedule of the occupants, which may even require a conversation.

    If the heating appliance is within 5 or 6' of the point of use, which renders a recirculating system unnecessary.

    Efficient????????

    Whatever floats your boat.
     
  4. Sep 27, 2017 #24

    Sparky617

    Sparky617

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    What kind of water heater do you use? Instant or a tank?

    I have a circulation pump on my hot water lines located in my master bathroom, the furthest point from the water heater. It has a timer. It also shuts itself off when the water reaches 95F. It uses the cold water line to send the water back towards the water heater. It has saved us a fair amount of water over the years, though I can't say how much. Before I installed it I could run 5 gallons of water out the tub before the water was hot enough to take a shower. I know it was 5 gallons because I ran it into a 5-gallon bucket and used it to flush the toilet. Now I run out about a gallon to get it to shower hot. The bigger water saver for us was going to front-loading clothes washer. That saved about 20% of our monthly usage. Having a 50-gallon gas water heater I really don't see an increase in gas costs from this setup. I mainly did it to cut down on the time it takes to get hot water for a shower.

    If you have an instant water heater you want to use a setup like you're looking at. Constantly circulating the water would defeat the energy savings of a tankless water heater.
     
  5. Sep 28, 2017 #25

    Blue Jay

    Blue Jay

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    Lights and pump would share the same 120V, pump would be just another light.
     
  6. Sep 28, 2017 #26

    nealtw

    nealtw

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    Your system is working the same as the Lobster.
     
  7. Sep 28, 2017 #27

    frodo

    frodo

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    looks like I need a ignore button
     

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