Joined on March 11, 2004
Last Post on December 10, 2013
@ November 18, 2013 11:16 PM in Two pipe with vacuum air vents?where an exhauster of some sort pulled the air out of the rads thru special vents. The Paul system was the best-known of these, but Eddy and others made these systems too.
What kind of problems are you having with it?
@ November 18, 2013 12:05 AM in Please help with banging steam pipes!since that didn't seem to help, there are other problems we haven't found yet.
The gauge is bad and needs to be replaced. That's pretty straightforward though.
Where are you located?
@ November 17, 2013 6:55 PM in Steam System Rescue at the Baltimore Rescue Missionthis one goes into what was the header for an old boiler that was there before the LGB. It's 5-inch, so it slows the velocity even more. We call this the "doubleheader" hookup.
@ November 17, 2013 6:50 PM in Steam System Rescue at the Baltimore Rescue Missionfrom Ferguson's has a stair climber so they took the sections in. Earlier we had disconnected the old boiler for a group of volunteers to remove. They scrapped the old boiler and I believe gave the proceeds to the Mission.
@ November 17, 2013 4:10 PM in Please help with banging steam pipes!then tell us what effect it had.
To see if steam is getting into the dry (overhead) return lines, simply feel them. You'll know if they're steam-hot ;-)
@ November 17, 2013 4:06 PM in Please help with banging steam pipes!the simplest form of steam heating there is. It has no traps or other moving parts on the radiators. There are orifices in the radiator supply valves which meter the incoming steam. If the pressure is kept low, steam will only fill the radiators to about 80-90% of their capacity. This keeps steam from reaching the dry return.
If the steam gets into the dry return, it can cause the banging you hear. It's likely that the pressure is too high or that one or more orifices are missing.
It is important to vent the steam mains quickly on this system, so the steam will reach the ends of the mains and then rise toward all the radiators at the same time. The dry return must be well vented too.
Crank that Vaporstat down as far as it will go. You should only need a half-pound or so, with about a 4-ounce differential if your vents are right. You can get orifice plates that you drill out to the proper size from Tunstall.
@ November 17, 2013 3:11 PM in Please help with banging steam pipes!Post pics of a few rads, including their shutoff valves and whatever devices are on the radiator return connections. Also any devices mounted in the piping around the boiler. See if you can find any names on them. This should point us in the right direction.
@ November 17, 2013 3:00 PM in Please help with banging steam pipes!if the pipes are banging, the problem is in the system.
I see you have a Vaporstat..... is this a Vapor system?
@ November 17, 2013 11:39 AM in Smith G-8 with New Style Carlin EZ-Gashave to look that up. We use the front refractory and target wall that come with the boiler, but not the rug. The front refractory protects the front plate which does not have water in it, and the target wall evens out the heat distribution so the back wall doesn't get slammed with too much heat. An oil burner would need the rug to reflect some heat back into the flame, but a gas burner does not.
@ November 16, 2013 11:26 PM in Smith G-8 with New Style Carlin EZ-Gastheir G-8 brochure isn't easy to find online but I have saved a copy. Slant/Fin and Columbia have too.
@ November 16, 2013 10:59 PM in Smith G-8 with New Style Carlin EZ-Gasit's a Honeywell VR8305M IIRC. And thanks for the kind words!
@ November 16, 2013 10:49 PM in Smith G-8 with New Style Carlin EZ-Gasis a 6-section unit, with a 3-inch drop header. We kept the old Vaporstat and added a low-pressure gauge, and moved the sight glass for easier viewing by installing two 1/2" brass crosses. Gordon once again made the copper look like fine art.
The new-type EZ-Gas has a 24-volt gas valve and a transformer that replaces the 120-volt gas valve used previously. The airflow-proving switch is enclosed under the black cover. The motor, primary control and igniter are the same.
The owner has an Internet-enabled thermostat that requires constant 24-volt power to keep it online. Since you can't access both terminals of the transformer in this primary control, we added an isolation relay unit with its own transformer to take care of this.
In the pictures, the gauge is reading 3 ounces or so. That's all you need!
@ November 16, 2013 10:41 PM in Smith G-8 with New Style Carlin EZ-GasThis old American-Standard atmospheric rotted out above the waterline, in familiar fashion. Note the 2-inch risers connecting to the 2-1/2-inch steam mains. The system started out as a Kriebel but someone added Sarco radiator traps and a Sarco return trap. Yes, that is a Vaporstat.
@ November 15, 2013 11:56 PM in Steam System Rescue at the Baltimore Rescue Missionsomeone else was doing that, and they ran out of 4-inch insulation.
@ November 15, 2013 10:53 PM in Steam System Rescue at the Baltimore Rescue Missionand a whole bunch of Gorton #2 main vents, after the asbestos crew had done their thing. The new boiler has two 4" steam risers instead of just one on the old one, and a drop header, so we're making much dryer steam. A Vaporstat keeps the pressure low, and we went back to good old-fashioned gravity return.
@ November 15, 2013 10:49 PM in Steam System Rescue at the Baltimore Rescue MissionEarlier this year we were called for a no-heat at this mission, which shelters homeless people. What we found was a leaking Weil-McLain LGB-8, lots of asbestos, a condensate pump feeding into a boiler-feed pump and a bunch of rotted-out piping around the pumps. And there was no way to keep steam out of the tanks, so the boiler room had been a sauna for years.
@ November 15, 2013 3:01 PM in Am I dealing with a knucklehead?to QAV's e-mail. Thanks all!
@ November 14, 2013 12:23 AM in Efficiency of Steam System Part 2I like to use Barnes & Jones #122 traps- they have very good air-venting throughput, better than the 8C I believe.
I've been known to do some out-of-town consulting, but given our schedule it would have to wait till spring..............
@ November 14, 2013 12:01 AM in Another Twin System - 6" Drop Headerone of them has a Sunray burner mounted in the firing door and a full set of what appear to be factory-spec baffles. I got surprisingly good combustion test numbers out of that one once it was cleaned and tuned, but it still has a lot more thermal mass than a current model so it takes longer to heat up.
Was that a Wayne burner on the one you removed?
@ November 12, 2013 8:38 PM in One pipe steam radiator in old two pipe systeminsufficient heat in both radiators, spitting vent on the 1-pipe rad, etc.
@ November 12, 2013 8:32 PM in Help sizingthe EG-30 should work fine, even if they re-install those two radiators (which they should!).
@ November 12, 2013 8:28 PM in Rusty Pipe at Boiler / Converting Boiler from Oil to Gasand have never been accused of being less than reputable for doing so.......