Current DOE CCMS record

RHEEM XG40S09HE38U0 Water Heater Specifications

Source facts reported to DOE for this exact model identifier.

Key specifications

DOE-reported brand
RHEEM
Exact model number
XG40S09HE38U0
DOE heater type
Gas-fired Storage Water Heater
Rated storage volume
39 gallons
Draw pattern
Medium
UEF
0.58
First hour rating
69 gallons
Recovery efficiency
76%

DOE source details

DOE basic model number(s)
XG40S12HE38U0

Source & freshness

DOE CCMS source page

Source snapshot retrieved: September 21, 2026

These records were reported to DOE. Appearance here is not a DOE compliance determination, independent test, or approval.