Assertion: water heater | /r/AtLocation | the residence
Facets:
Source sentences:
text: Just like with electric water heaters, many options exist for gas water heaters, including the type of gas used, the amount of heat generated (referred to as Btu output), the altitude at which the unit may be operated, the type and sizing of the venting, and whether the unit has power venting or not (determines where in the residence the water heater may be located).