How do you interpret this

chuck shaw

a boiler manufactures installation manuel. I found an area that says "On a hot water boiler installed above radiation level, the boler must be protected by a low water cutoof device at the time of installation by the installer". The local inspector, says that this is in a situation where a boiler is installed in an attic, or on the first floor and there is radiation (any type of heating) on the floor below. My take on it is, the boiler vesell is above the level of the baseboard heat, or tubing in the slab, thus, according to the manufacture it is required. I make it simple on myself, and alwasy install one. I am just looking for opinions, on what is a "must be done" situation.

Thanks,

Chuck



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Steamhead

You got it, Chuck

I recall reading something like that in one of my Dead Men's Books. McDonnell & Miller has been making LWCO units for hot-water systems since the 1940s I believe.

You rarely see them around Baltimore though, because codes and inspectors don't require them around here on residential or light commercial hot-water systems.

I agree they're a good idea.

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Mark Hunt

LWCO's


are mandatory on ALL boiler installations in New York now.

I think it's just a good idea.

I have seen situations where the PRV has siezed shut on water boilers. A LWCO is good insurance.

JMHO.

Mark H

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Unknown

I can help, Chuck

My take on it is this: If any part of the system that is connected to the boiler is in a position that is lower than the safe operating water level of the boiler, such that a leak there would be dangerous because it might syphon the water from the boiler; you need protection, by code.

If the piping is below the top of the vessel, it probably fits the rule. The boiler manufacturer should be consulted to determine an individual case, by the contractors, the home owners, and the inspector.

The rule is intended to stop the burner if a leak draws the boiler water level below a safe point.

Noel

Al Letellier

low water cutoff

Easy situation here in Maine. Low water cut-offs have been required on residential water boilers since 1973. Steam boilers since forever.
Even if it wasn't required, I think they should always be installed. A $65 control can save a $2000 boiler and maybe the building and people it serves.

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Dave Palmer_3

Hey Chuck

it's mandatory here in RI, before it was if you had baseboard or hot water maker in basement. Dave Palmer

Mark Eatherton1

My interpretation...

if there is any part of the distribution system lower than the boiler, it MUST have a LWCO. We spec them for every boiler we sell. Al Levis company specs 2 of them for every boiler they sell. If ones good, 2's great!

ME