Before you begin please read disclaimer: The Raypak, Inc. SureSpec 4.0.0 web-based sizing application is a tool that can be used to estimate heating requirements for many common domestic hot water system types. It is not intended for use on hydronic systems or pool systems. SureSpec4 is intended to assist in selecting water heaters that best meet the specific job requirements. It is the sole responsibility of the system designer to select the correct products needed for the specific application. Raypak, Inc. reserves the right to make changes to SureSpec4 without notice.


For hydronic system sizing, contact an engineer or HVAC supplier.
For pool heat pump sizing, see Heat Pump Sizing click here
For gas-fired pool heater sizing, contact your local Raypak representative.

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Project Type:
Project Name:
Specification Reference:
Title: Title:
Company: Company:
Contact Name: Contact Name:
Address 1: Address 1:
Address 2: Address 2:
City: City:
State: State:
Zip / Postal Code: Zip / Postal Code:
Telephone: Telephone:
Fax: Fax:
Email: Email:
       

City Water Temperature:
° F
Stored Water Temperature:
° F
Water Hardness:
Fuel Type:
Elevation: Feet
Low NOx
Water Heater Location:
Tank Orientation:
Packaging:
Application Type:
 
 
 
 
 

Qty. Fixtures Description Temp Flow Usage Diversity
   
Add Custom Fixture:

Please call factory for this type of applicaiton.
2151 Eastman Ave.
Oxnard, CA 93030
Phone: (805) 278-5300

We didn't find a unit in our records that will support
this type of application. Try adding a heater. If you are having problems please feel
free to contact the factory.

We didn't find a unit in our records that will support
this type of application. Try adding a heater. If you are having problems please feel
free to contact the factory.

We didn't find a unit in our records that will support
this type of application. Try adding a heater. If you are having problems please feel
free to contact the factory.