Assertion: water heater's energy factor | /r/HasProperty | achieved
Facets:
value: by using condensing technology
type: MANNER
Source sentences:
text: or less was able to have an energy factor as low as 53%, while under the 2015 standard, the minimum energy factor for a 75-US-gallon gas storage tank water heater is now 74%, which can only be achieved by using condensing technology.