water makeup

kurt mitenbuler

Does anyone think it matters that the automatic water makeup is fed from the cold water supply? I've looked @ hundreds of boilers over 20 years (Chicago), that's how they do it here, & today a plumber I've never met before felt this was the worst thing in the world. His fear was that the cold water "would crack the boiler".

I've never seen it be a problem in anything other than snow melt systems.

Thoughts?

[Deleted User]

its normal to use cold water,

but hots fine also..i think its slant fin that actually says to use hot in their manuals if i remember right..we do it both ways...if the boilers still holding water then a little cold isn't going to be noticed.

kurt mitenbuler

thanks much

for the help; it's what I've always thought, but this youngster was all in a stitch over it. I don't know where they get this stuff sometimes.....

Mark Eatherton1

Problem with snowmelt systems...

Snowmelt systems should NEVER have an automatic feed connected to them.

Nothing worse than inadvertent dillution when your back is turned, only to discover that there is no antifreeze in the system, just frozen, broken pipes...

Use a PIG.

ME

Dave Stroman

I don't think he knows what a pig is, Mark.

Jerry Boulanger_2

Or a packaged system feeder if

it's a closed water system. On steam systems, however, feeding hot water can tend to lime up the seats on feed valves, causing them to stick open.

Unknown

I agree, Jerry

I also think that if that happened on a residential boiler, I'd be looking for the reason that THAT MUCH feedwater had to be used. It takes a LOT to cause that. It's more of a concern in a 1500 gallon boiler than in a 7 gallon boiler.

Noel

[Deleted User]

what exactly is present in hot water,

that is not present in cold water??actually there should be less in the hot water as some minerals have precipitated out in the water heater and are now on the bottom of the tank as sediment..also the hot water has less dissolved gases in it...now the mechanical feeders arn't rated for hot water, but MM's residential electronic feeder is...

Unknown

I don't know what it is...

But Jerry's right about the reason.

Noel