Specifications
Zone Cubic Feet Square Feet*
1
7,431 -11,270 931 -1,410
2
4,821 - 7,310 601 - 910
3
4,051 - 6,150 511 - 770
4 3,431 - 5,200 431 - 650
5
2,831 - 4,290 351 - 540
6
2,311 - 3,510 291 - 440
7
2,111 - 3,210 261 - 400
EX17CT (RHFE-434FTA2)
Rinnai Corporation • 103 International Drive • Peachtree City, GA 30269 • Toll-Free: 1-800-621-9419 • Fax: 678-829-1666 • www.rinnai.us
Selection is based on installation locations at 2000ft or below. If the
installation is above 2000ft please contact Rinnai.
In bathrooms, select a product equal to or less than 6000BTUH.
In bedrooms, select a product equal to or less than 10000BTUH.
In single rooms in Region V, multiply the room’s volume by 3.20.
The result is the maximum heat input (BTUH) of the product you
should consider.
Chart should not be used as the sole document for making final
product selection. Consult with your Rinnai independent dealer.
Square footage column based off of an 8ft ceiling assumption.
The guidelines apply to average house construction.
This is intended to be used as a guide and not a replacement for a
professionally engineered project.
Rinnai has not been to the location so this guidance is for your
assistance only and should not be the sole factor in making a sizing
selection.
Sizing does not describe a complete system.
The contractor/engineer must determine the necessary components
for and configuration of the particular system being installed.
Sizing does not imply compliance with local building codes.
It is the responsibility of the engineer/contractor to ensure the
installation is in accordance with all local building codes.
Confer with local building officials before installation.
RAC, its agents, employees, directors, officers, parent or affiliate
companies assume no liability for damages arising from information
provided herein to or by consumers or third parties or for damages
arising from or associated with water quality, compliance with local
codes, installation methods, materials or other circumstances related
to application or installation.
For primary heat applications, perform a Manual J sizing calculation.
Chart is to be used for supplemental heat applications only.