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.

Testing Hoffman A-1 vent

bob young
bob young Member Posts: 2,177
in THE MAIN WALL
BLOW THROUGH IT UPRIGHT . THEN UPSIDE DOWN. [ IT SHOULD LOCK ]

Welcome

It looks like you're new here. Sign in or register to get started.
Sign In
Register

Comments

  • Jeff_133
    Jeff_133 Member Posts: 36
    Testing Hoffman A-1 vents

    Is there a way to test a Hoffman A-1 vent for proper functionality, other than installing it in a radiator and waiting for the system to cycle?
  • Jeff_133
    Jeff_133 Member Posts: 36
    your test

    do you mean it should be locked once you turn it upright again?
  • bob young
    bob young Member Posts: 2,177
    up=air ----down=none

    Upright you can blow thru it. inverted , the float drops & it closes. can't blow thru it. fairly simple mode
  • Jeff_133
    Jeff_133 Member Posts: 36
    ok, got it

    not trying to make this more difficult than it is... but... one thing i noticed is i had a Hoffman vent that shut when it warmed up, but then did not cycle on/off during the so-called "drop-away" so the radiator never was getting warm all the way through. i replaced the vent and that seemed to take care of the issue, but I need to test 15 more vents, and was wondering if there was a way to detect this, as it took me time to observe this...
  • bob young
    bob young Member Posts: 2,177
    start blowing lol

  • Jeff_133
    Jeff_133 Member Posts: 36
    that's pretty funny

  • lanceL
    lanceL Member Posts: 14
    testing rad vents

    I haven't done this but, having the same question, was thinking of extending my vent antler with a ball valve bushed to 1/8 to test them. Just my .02 Lance
  • The Boiler Dr.
    The Boiler Dr. Member Posts: 163
    I install a test station

    at all my boilers to facilitate testing. It is simply amazing how many vents get condemned when the problem is elsewhere.
  • Jeff_133
    Jeff_133 Member Posts: 36
    interesting...

    where would be the best spot on the boiler to install a test valve?
  • bob young
    bob young Member Posts: 2,177
    cut a tee into the header

  • The Boiler Dr.
    The Boiler Dr. Member Posts: 163
    I take mine

    right off the top cross tee on the low water cut off.
This discussion has been closed.

Welcome

It looks like you're new here. Sign in or register to get started.
Sign In
Register

Quick Links

Categories