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steam air vents

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installed Hoffman non-adjustable air vents on all 7 rad. Second floor, where bedroom are, is 4 degrees cooler.
First floor has thermostat is no doubt shutting down when it gets to set point. Should I replace rad nearest to thermostat with variable air vent and set to 1-8, leave at 5? thoughts...

Comments

  • Jamie Hall
    Jamie Hall Member Posts: 23,324
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    The general rule applies: assuming you have adequate main venting, if a room is overheating or heating too fast, place a slower vent on that radiator.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
    ethicalpaul
  • dopey27177
    dopey27177 Member Posts: 887
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    Typically, when an imbalance occurs such as you have where the thermostat shuts down the boiler before the second floor is heated take two of the slow venting air valves from the second floor and switch it to the radiators nearest the tstat.
    By slowing the steam supply to the radiators it may change the steam supply to the upper floors and heat the rooms where you have less heat. If that corrects the problem in two of the radiators switch out the remaining air valves to the faster valves on the upper floors and the remaining Hoffman valves on the first floor.

    Jake .
  • Mark929
    Mark929 Member Posts: 72
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    The general rule applies: assuming you have adequate main venting, if a room is overheating or heating too fast, place a slower vent on that radiator.

    @Jamie Hall what is meant by adequate main venting?
  • Mark929
    Mark929 Member Posts: 72
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    Typically, when an imbalance occurs such as you have where the thermostat shuts down the boiler before the second floor is heated take two of the slow venting air valves from the second floor and switch it to the radiators nearest the tstat.
    By slowing the steam supply to the radiators it may change the steam supply to the upper floors and heat the rooms where you have less heat. If that corrects the problem in two of the radiators switch out the remaining air valves to the faster valves on the upper floors and the remaining Hoffman valves on the first floor.

    Jake .

    i should say i assume the thermo hits it target and shuts down and is why the heat didint stay on and continue to heat the 2nd floor, alas 4 degrees different.