Electric Tankless questions
Don't forget, it's two 40 amp breaker pairs, not two 40 amp single breakers. Your panel and feed cables need to be rated for 100 amps (@ 240 volts) as a bare minimum.
You need to do a new load analysis to be sure that your panel will meet code after installing this.
If the home is unoccupied for more than a week, you already save a lot of energy by turning off the water heater (set the small knob to pilot or the large knob to vacation for gas heaters).
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 06-25-2012 at 07:19 AM.