Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Vento indirect radiators

norfitz
norfitz Member Posts: 55
in THE MAIN WALL
A San Francisco bldg has banks of Vento c.i. indirect rads in 9-section blocks stacked 3 blocks high, enclosed in ducting with huge squirrel cage blowers below. Old data shows 16 sq. ft. per section, but I believe that's a gravity airflow rating. As a tall convector cabinet uses more steam than a short one, it follows that these use far more steam when used as fancoils than their ratings suggest. Anyone know how to quantify this load? I've stumped a surprising sampling of well-known names with this one.

Thanks much,

Bruce Tompkins,
Power Boiler Sales

Comments

  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,610
    How about

    Steam fan coil load in Pounds of Steam per Hour = CFM X Delta T of air (in degrees F.) divided by 800.

    Can you work with that?
    Retired and loving it.
  • norfitz
    norfitz Member Posts: 55


    Hi Dan. Are you saying I don't factor in the Vento's EDR ratings at all?

    Bruce
  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,610
    As you said

    the rating you have is for gravity air flow. That formula will give you a way of checking the output for the purpose of boiler sizing when there's a fan blowing across the heaters.
    Retired and loving it.
This discussion has been closed.

Categories