Current DOE CCMS record

RHEEM RHE40S Water Heater Specifications

Source facts reported to DOE for this exact model identifier.

Key specifications

DOE-reported brand
RHEEM
Exact model number
RHE40S
DOE heater type
Gas-fired Storage Water Heater
Rated storage volume
37 gallons
Draw pattern
High
UEF
0.83
First hour rating
87 gallons
Recovery efficiency
92%

DOE source details

DOE basic model number(s)
RHE40S

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.