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Best LWCO brand?

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Santa_Bob
Santa_Bob Member Posts: 5
in Gas Heating
Hi,
I have had 3 LWCOs fail in the last 12 years. One failed after only a few months, one lasted about 2 years, one lasted about 5 years, and one is still working! My first question is, how long should I expect these to last in normal use? Should they be periodically replaced, even if they appear to be functioning?

My second question is, do any of you recommend a particular brand? I have used a Mcdonnell & Miller GuardDog and Hydroevel Safguards, but I see that Taco makes them and I am sure there are other brands. Any opinions? :)

Thanks in advance.
Bob

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  • delcrossv
    delcrossv Member Posts: 742
    edited January 2022
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    Probe type. Probes need to be removed and cleaned yearly. Nothing will last if not maintained. No reason why the probe shouldn't last 10 years if cleaned yearly.

    I have about 30 years on a float type MM.
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,534
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    Hydrolevel.

    But why are they failing? If you don't find the reason they are failing the replacements will fail just as quickly.

    Wiring issue? Boiler water surging?
    Gordodelcrossv

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