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.

Hydrostat 3250 settings help

jbhulagirl
jbhulagirl Member Posts: 8
in Thermostats and Controls
My oil company replaced my boiler and added a hydrostat 3250.  Currently my thermostat is turned off.  Hydrostat set to Econ 1, low 120, high 140.  The boiler runs every 15 mins or so bringing the water up to temp (as I think I understand it) my house is 76 degrees.  Oh and I’ve blown thru 1/4 tank of oil in a month. Remember my thermostat is turned off.  My question is what are the proper settings on the hydrostat to keep it from running the boiler so much and from roasting me out of my house.  

My old unit, didn’t have a hydrostat and only kicked off via thermostat and my house was always a comfortable 68 and my oil consumption was much much lower.  

My oil company is not very responsive and quite honestly I think they want me to blow through my oil faster.  

Please help.  

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,470
    Need more information. Do you get your domestic hot water off the boiler?

    How many zones do you have?

    Do you have zone valves or circulators?
  • HVACNUT
    HVACNUT Member Posts: 6,330
    It you're getting heat from the emmiters while the thermostat is off, then there's either a short in the thermostat wiring or a faulty flow check valve allowing the water to gravitate out of the boiler. 
    If you have a tankless coil for domestic hot water, the economy setting should be off.
    STEVEusaPAjbhulagirl
  • jbhulagirl
    jbhulagirl Member Posts: 8
    Only one zone.  And I have a separate hot water heater.  Not connected to my boiler.  
  • jbhulagirl
    jbhulagirl Member Posts: 8
    The oil company that installed said that Econ should be set to 1 and low 120 and high 160.  It truly is cooking me out of my house.  And like I said, I’m blowing through my oil much faster than I imagined.  
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    If you don't use your boiler to make domestic hot water, lo should be off, high can be 160°, circulator hold off should be on (enabled). Like @HVACNUT said, if your thermostat isn't calling for heat, the burner shouldn't run.
    It's also possible you are getting ghost flow from a failed/missing check valve.

    There was an error rendering this rich post.

    jbhulagirlMikeAmannSuperTech
  • jbhulagirl
    jbhulagirl Member Posts: 8
    I feel so at a loss because hvac isnt something I kind diddly about.  I only know that my last boiler, if I needed heat I turned up the thermostat.  This thing runs every 15 mins for about a minute with the settings I previously mentioned and my house thermostat is off and the current house temp is 71.  I appreciate all your comments and I have tried calling the installer but they dismiss me.  Very frustrating when I just want it to run as I expect and be more efficient than my 50 year old boiler I replaced.  So far that is not fulfilling my expectations.  
  • DJD775
    DJD775 Member Posts: 255
    This seems odd to me. I wouldn't think the boiler would fire every 15 minutes to maintain temp if the thermostat was not calling for heat. Sounds like you are getting flow through the heating system even though the thermostat is off. You can carefully feel the pipes coming out of the boiler to see if they are hot. If they are there is a problem. For reference I only use ~1/8 a tank per month in the summer to produce hot water.
    BTW, what model boiler did they install?
    jbhulagirl
  • jbhulagirl
    jbhulagirl Member Posts: 8
    Slantfin boiler model temperature-30-1.10p. All pipes coming out are warm to the touch 
  • DJD775
    DJD775 Member Posts: 255
    As mentioned earlier you could have ghost flow or the circulator is being triggered.
    jbhulagirl
  • jbhulagirl
    jbhulagirl Member Posts: 8
    I don’t know what ghost flow really means or how to fix it.  But what I have done is set Econ to 1, low to off and high to 160.  That was an hour ago and so far it hasn’t kicked back on.  Hoping that is the magic setting!! I suppose the oil company had “their” settings so I buy more oil.  Fingers crossed you’all have helped solve my settings thank you
    MikeAmann
  • DJD775
    DJD775 Member Posts: 255
    Ghost flow occurs from the hot water rising and self circulating throughout the system. A check valve in the pump or after the pump stops ghost flow and should have been installed at the time of installation.
    With the setting you now the burner should never turn on unless there is a call for heat.
    jbhulagirl
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,470
    @jbhulagirl

    Ghost flow is water moving through the pipes when it shouldn't be. Water should only move when the circulator is running. Probably a bad flow check valve.

    Check "find a contractor on this site" or post your location. Your contractor sucks. Someone here may be able to recommendation in your area

    Post the city you are in
    DJD775SuperTech
  • jbhulagirl
    jbhulagirl Member Posts: 8
    I’m located in bel air Maryland. 

    You all have been amazing.  The settings suggested worked and my house is now bearable and the unit hadn’t kicked off unless the thermostat calls it.  I have been trying to get help from the installer for a month!!! Thank you all again. 
    MikeAmann
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 16,470
    Don't know if Bel Air is near Baltimore? @Steamhead
  • jbhulagirl
    jbhulagirl Member Posts: 8
    Bel air is close enough to Baltimore.  

Categories