Return to the Plumbing Forum | Post a Follow-Up

 o
FHR calculation?

Posted by starfish11040 (My Page) on
Sun, Mar 13, 11 at 14:06

Due to a hot water shortage at peak demand time, I'm replacing my two gas-powered water heater system, combined storage of 80 gallons, with a two water heaters totalling 100 gallons.

I'm confused because of a disagreement between the two plumbers who gave me estimates concerning what is necessary to satisfy the needs of the building. Both agree on stepping up to 100 gallons, but one says the heaters should have improved recovery time - that is, increasing from 40000 BTU's to 65000 BTU's per heater - and the other says remaining at 40000 would be enough.

So to make a decision it seems that I need to know the FHR need. There are ten small apartments, one bathroom each, with 12 people, all adults. There are no dishwashers or washing machines. Can anyone help me with the FHR need?

I want to make sure that the new system resolves the shortage but I don't want wasteful overkill.


Follow-Up Postings:

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Plumbing Forum

Instructions

  • You must be a registered member and logged in to post messages on our forums.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review the contents and make changes.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • It is illegal to post copyrighted material without the owner's consent.
  • HTML codes are allowed in the message field only.
  • No advertising is allowed in any of the forums.
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.



 
Click here to learn more about in-text links on this page.