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.

Smith GB100W boiler problem/question

astoria2013
astoria2013 Member Posts: 16
I have a new customer that has 3 of these boilers that has to at least 2 times a year change rollout Switches. His chimney is 10 inches which I suspected was the Problem, but upon further inspection I found this. See pic. Has anyone ever seen anything like this before? All 3 boilers have it. Just a plate covering 3/4 of flue right before vent damper. Boilers are 50,000 btu. Nothing in manuals I have found have any mention of this plate which seems to be part of boiler. Thanks in advance.

Welcome

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

Comments

  • Ironman
    Ironman Member Posts: 7,723
    If it's factory installed, I wouldn't worry about it.

    You obviously have a chimney issue. 10" is way too large for a 50k btu appliance or even for three of them if they're common vented. What's the chimney height? Is it a masonary chimney on an outside wall?
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
    DZoro
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 18,033
    If the chimney is oversized the chimney takes time to heat and produce draft, it may even backdraft a bit when starting with a cold chimney
    kcoppDZoro
  • HVACNUT
    HVACNUT Member Posts: 6,804
    That certainly is a fusible link rollout switch when typically there is a spill switch in that location.

    Check the key on the wiring diagram to see if that's the correct part.

Welcome

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

Welcome

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