Water Heater question

[Rlum]

Originally Posted by avanti

This isn't a time-of-day timer. It's just holds the solenoid open for a certain number of seconds after you press the button. Saves the user from having to stand there with his or her finger on the button.

Another question(s):

1. Since this is a closed loop system, how/where would you place a drain valve to remove water and replace with antifreeze for winter months?

2. I am planning on installing two close loops(one for kitchen and other for bathroom).

Thanks