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Rob10667

Rob10667

Joined on February 7, 2010

Last Post on March 6, 2014

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Recent Posts

Used Cast Iron Radiators

@ March 6, 2014 4:55 PM in Used Cast Iron Radiators

Looking for a good source for used cast iron radiators in the Midwest (Ohio, Indiana, Kentucky, Etc.) Specifically need two (2) 59" Long, (or a little shorter) 12" deep, 20" high. or as close as possible. Any help would be greatly Appreciated.

Salvage Cast Iron Radiators

@ March 6, 2014 4:52 PM in Salvage Cast Iron Radiators

Looking for a good source for used cast iron radiators in the Midwest (Ohio, Indiana, Kentucky, Etc.) Specifically need two (2) 59" Long, (or a little shorter) 12" deep, 20" high. or as close as possible. Any help would be greatly Appreciated.

Instantaneous W/H driving radiant floor system?

@ February 17, 2012 10:53 AM in Instantaneous W/H driving radiant floor system?

Would appreciate any/all input on experiences using instantaneous water heaters (Rannai, etc) for radiant floor applications.  I have two jobs that I've used these on, one O.K. And one an awful mess. Both jobs used the units for dual purpose (domestic and comfort heating).  All problems have stemmed from breakdown or malfunction within the heaters themselves.
Thanks for the input.
Rob

Last chapter and worse!

@ February 9, 2010 10:01 PM in possessed Weil Mclain CGI

Mystery solved!  (finally)
This weekend my nasty little weil-mclain gave up a section.  So.....
I proceeded to tear down this boiler, remove the cracked section, reassembled the block (now one section shorter) On Super Bowl weekend, in the middle of a blizzard, out of the back of a Jeep Cherokee, (van was snowbound).  BTW if anyone ever has to do this, You have to blank off the missing section in the base with sheet metal and plug the burner orifice. BUT... don't blank off the flue collector hood because that causes too much velocity through the remaining sections and extinguishes the interrmittent pilot.
Anyway, this boiler was nearly full of scale and mud and my excessive pressure was coming from water trapped in the superheated sections and flashing to steam. Although it didn;t pop and crack like normal (THAT would have been a handy clue).  ANYWAY. Thanks to eveyone for all the helpful suggestions.  I'm gonna go sell a new boiler!
Rob

Thanks guys!

@ February 7, 2010 7:59 PM in possessed Weil Mclain CGI

 OK,  I buy into the glycol theory and I KNOW the expansion was marginal.  My only question still is why didn't this problem show up in october when the glycol was first pumped in, why now four months later!!  Today I twinned in another #60 with the existing one and we'll see.  Sometimes it take a day for it to do it. I'll post an update in a couple days if it behaves itself.   Thanks again for all the good advice!!

pressure rising in the boiler AND this big vein in my head!!

@ February 7, 2010 2:08 PM in possessed Weil Mclain CGI

ED,
thanks for the response,  No changes have been made in the system since we've been servicing it.  I've virturally eliminated the feedwater system because the system is always full of air when I get on-site. but the boiler is always at 30# with a steady drip through the relief. (with lost of system gurgling)  The system has approx 125 gallons of water with the boiler and operating temp that #60 Xpan tank is marginal at best. but it has worked fine for six years so WHY NOW??

Delay Valve

@ February 7, 2010 1:42 PM in Haunted oil burner

Does this burner have a pump mounted solenoid?  I've had more than one instance where these operators have a bad connection and won't open every now and then. 

possessed Weil Mclain CGI

@ February 7, 2010 1:08 PM in possessed Weil Mclain CGI

O.K  I'm out of Ideas. 
   About a week ago A weil-mclain boiler at a very good customer's house started relieving for no apparent reason. I checked all the usual suspects without success.  Pressure reducing valve, check.  Expansion tank, check.  Even replaced expansion tank out of sheer desperation but still have the problem. Closed the hand valve upstream of the PRV in case it was leaking through. no luck. This is about a 6 year old boiler 233,000 btu. It has 5 zone pumps attached to 2 zones of 100 year old cast iron radiators and 3 hydro air zones serving the newer additions. The pumps are on the return side of the boiler (we didn't install this) the #60 expansion tank is immediately off the supply along with an auto vent.
There are also 5 B/G weighted gravity flow checks on the supply header.  No matter what I do i can't keep the pressure from gradually rising (sometimes it takes overnight) and popping off.  No changes have been made the system and it has worked perfect for six years.  Fresh glycol was put into the system last October. This problem manifested itself about 10 days ago and has been a constant thorn in my side.  Haven't had my butt kicked like this in about 20 years.  Any helpful comments would be greatly appreiciated.