Assertion: water heater's efficiency | /r/HasProperty | almost 100%
Facets:
value: for an electrical energy customer
type: OTHER
Source sentences:
text: For an electrical energy customer the efficiency of electric space heating is almost 100% because almost all purchased energy is converted to building heat (the only exception being fan noise and indication lights which demand very little electricity and virtually none at all when compared to the extremely large energy draw of the heating itself).