SpecDirectory

RCB399AN

Rinnai · Commercial Boiler

ENERGY STAR CertifiedCommercial Boilers →
Thermal Efficiency

97%

Input Rate

399MBTU/hr

Turndown Ratio

10.00

Application

Indoor

Rinnai RCB399AN: thermal eff 97%, around the middle of the range for commercial boilers (category median 96.5%).

Where this model sits

Input399MBTU/hr
300median 7502500
Thermal Eff97%
94median 96.598.7

The Rinnai RCB399AN is a 399 MBTU/hr commercial boiler. At 97 % it ranks around the middle of the 386 certified commercial boilers models. Among similar-sized commercial boilers (within 10% of its size), it is more efficient than the peer median of 96.5 %.

Specifications

Performance
Thermal Efficiency97%
Full-Load Input Rate399MBTU/hr
Turndown Ratio10.00
Configuration
ApplicationIndoor
Control TypeMulti-stage
Model NameRCB399AN
Identifiers
Model NumberRCB399AN
ENERGY STAR IDES_97439_RCB399AN_01082024045553_3471499
PartnerRinnai America Corporation
Date Qualified2024-02-07
Available From2023-12-08
MarketsUnited States, Canada

Documentation

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