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Low water cutoff installations
I have seen many questions on low water cutoff installations and how to maintain them.
I am sending the installation guide from McDonnell and Miller for Steam and Hot Water Boilers.
This can be a refresher to Boiler a installer, technicians but more for the do it your self people. A do it your self person needs to know what the install looks like especially when hiring contractors.
A cautionary note to all do it yourself people is you are playing with fire. A dry fire can occur and you will lose your boiler. McDonnell Miller warrants it's products. Should the new lwcf fail you may not recover the cost of a boiler replacement.
Only a qualified boiler installing contractor will be able to recover your cost of a new boiler installation from McDonnell and Miller or his liability insurance due to a product failure.
Proper maintenance of LWCF's is required to protect the boiler from dry fires.
After reading the enclosures if you have questions about maintenance go on McDonnell Millers web site and reference the maintenance requirements.
I hope this discussion will answer some questions and impress on some people that LWCF's are a vital safety device. Additionally some jurisdictions require two LWCF's on small boilers.