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Re: More conversion questions

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Posted by HeatPro on December 05, 2007 at 14:45:20:

In Reply to: Re: More conversion questions posted by steve on December 05, 2007 at 14:11:28:

Another plumper pointed out that the corrosion in the steam pipes can be bad for the pex.
++ Any excuse to sell something else. Most radiators wouldn't require more than 1/4" copper if that is their worry.

: : ++ What asbestos?
: ++++ One guy thought there would be asbestos insulation on the pipes upstairs and going up if they are hidden in the wall.
++ Not a practice when installed.

: ++++ Yes, but they say they have to drill and cut the plug to prevent cracking the radiator.
OK, they'd still have to do that to fix a radiator. 5 more minutes each fitting required for an experienced heating plumber.

: Any thoughts on high velocity hydro-air systems? ++ If you can't pull 1/2-inch copper or pex, try pulling 2-inch or larger duct without tearing up walls. You wanted the old radiators for a reason; you abandon them for hydro-air and lose ALL radiant warmth.

BTW does 315000 BTU (IN10) for a gas steam boiler sound large.
++Not unusual, but it does indicate that steam required twice as much boiler as hot water.

Somebody is taking care of the mansions and larger steam-heated buildings in the area. Ask the school and city hall maintenance people who does theirs.

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