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.

Thermostat CPH?

Options
I have a Honeywell rthl2510c1002 running oil/steam boiler and noticed there’s no cycle per hour settings available. 

What’s the downside of continuing with this thermostat? 

Comments

  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
    Options
    The possibility of short cycling. 

    I've found that 1-3CPH works best for pretty much everything. 
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • Solid_Fuel_Man
    Solid_Fuel_Man Member Posts: 2,646
    Options
    Edit:

    I've never seen a digital Honeywell which doesnt have the CPH setting. 

    For a basic programmable stat I like the TH4110D1007. 

    I've had nothing short of perfect results Honeywell's FocusPro line. 
    Serving Northern Maine HVAC & Controls. I burn wood, it smells good!
  • Jamie Hall
    Jamie Hall Member Posts: 23,635
    Options
    Read your manual. Function 5, Option 2
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England