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WiFi Contactor

WiOn contactor from 

Woods 50054

Auto detect voltate/ 120, 208, 240, 277 volt
30 amp
Outdoor metal box with 3 knockouts for 1/2" or 3/4", located on sides and bottom.
Illustration shows test wire at my house before installation.
No NC terminals/ DPDT

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WiOn contactor from Amazon

Resource:
How to wire WiOn for 120 volt and 240 volt
wemo

Wi-fi: Control electric water heater with wireless WeMo

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Z-wave: Control any 120 volt or 240 volt load with Phone

Any amperage

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Z-wave switch

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Contactors
Fuseholder
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Wire size chart
Smarthings Hub

Z-wave: Control any 120, 240, 277 volt load with Phone

30 amp CA3750/ 2-channel

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CA3750 and related products at Amazon
Z-wave controllers

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How to wire CA3750
Elk remote control contactor

X10/ 60 amp contactor

Plug into 120V outlet.
Relay works with automated hardware.
Rated up to 60 amps.
Buy:
Elk relay contactor at Amazon

Resource:
Elk-9200 manual
Insteon 2477SA1 X10 load controller  
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X10 relay for electric water heater

Relay handles resistive load only:
Water heater, incandescent light bulb... yes
Motor, CFL, LED.... no
2 year warranty/ must use Insteon X10 compatible controller etc.
Buy: $120
Insteon 240v / 30 amp X10 load controller for resistive loads only
Insteon remote control products at Amazon
ISY home automation devices at Amazon
Resource:
Insteon load controller manual
Control gas water heater with WeMo
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Wi-fi/ Z-wave/ X10/ 

Control gas water heater

WeMo programming resources are online
No subscription
WeMo plugs into ordinary 120volt outlet
Control WeMo using phone or tablet
 
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WeMo at Amazon
Belkin WeMo at Amazon
Gas water heater timer at Amazon
Gas water heater timer coupon

Resource:
Gas water heater timer
How to set up wemo on your wifi network

Three GAS water heater timers

Gas water heater timer research pdf
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Buy: Gas water heater timer at American Pacific
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See photo description of BW gas water heater timer
Hibernator Gas water heater timer by Intention Dynamics
Invention-dynamics.com/Hibernator.html
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