efficientPV
Solar Addict
- Joined
- Sep 24, 2019
- Messages
- 1,384
Hot should go to the thermostat side. One failure mode is that the element will short to the case midway. That would leave it heating without a thermostat. The thermal overload switch would still work because that switches both sides. When only lower thermostat is used, this does not have one unless replaced with an upper.
