Current DOE CCMS record

NORITZ NRC663-FSV-NG Water Heater Specifications

Source facts reported to DOE for this exact model identifier.

Key specifications

DOE-reported brand
NORITZ
Exact model number
NRC663-FSV-NG
DOE heater type
Instantaneous Gas-fired Water Heater
Rated storage volume
1 gallons
Draw pattern
Medium
UEF
0.87
Maximum flow rate
3.4 gallons/minute
Recovery efficiency
91%

DOE source details

DOE basic model number(s)
NRC663-FSV-NG

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.