Assertion: water heater's tank | /r/HasAspect | built-in heat exchanger
Facets:
value: with a 4.5kw backup heating element
type: OTHER
Source sentences:
text: The tank has a built-in heat exchanger with a 4.5Kw backup heating element that’s UL and CSA certified.
text: The tank has a built-in heat-exchanger to heat domestic cold water.