Joined on February 27, 2010
Last Post on March 8, 2014
@ September 27, 2011 6:49 AM in What's up with these pipes?There most definitely is an advantage to using both tappings. It's steam-fact. The more tappings you use, the slower the steam will exit the boiler (a good thing!). The manufacturer designates the number of risers to be use based on size so that the contractors buying them will pick their product, because it's easy to install. One pipe is easier and cheaper than two, right? I'd rather trust a century of field knowledge than a modern engineer in a test lab.
@ September 26, 2011 6:37 AM in Steam Boiler - Not firing upAvoid changing out parts without knowing why. You'll save a lot of money. Could be a number of different things going on. What clicks? The thermostat or the boiler?
@ September 26, 2011 6:33 AM in What's up with these pipes?Boilers of a certain size only require one riser off the top, so the manufacturer plugs the other tapping. Once you start getting into a larger BTU rating, you'll need to use that second tapping, as well as increase pipe sizes around the boiler. There are great advantages to using the second tapping on every size boiler, so it's actually better that it was piped in like that.
However, as you know already, the piping is a bit...off. The only problem I would predict would be uneven heating on one of the mains. And possible water hammer near the boiler.
@ September 25, 2011 9:08 PM in Boiler exhaust pipingYou can pipe in a tee with a cleanout plug. Then you can avoid breaking apart pipes and fittings during the maintenance.
@ September 25, 2011 1:32 PM in Automatic water feeder doesn't activateIs this a new problem? Has anything changed on the boiler?
Sounds like the LWCO isn't sending a signal to the feeder. Could be a loose wire or missing jumper.
@ September 25, 2011 8:33 AM in two one pipe staeam systems alongside each other?EDIT:
You only want to run a new steam main? Not a whole new boiler?
That's fine as well. Like Tim said, you can use zone valves that have condensate drips on them. A few more rules to follow, but effective.
@ September 25, 2011 8:32 AM in two one pipe staeam systems alongside each other?You can put a separate steam boiler for every room in the house if you want to.
Sounds like you shouldn't have a problem separating the levels in the house. You just want to be very particular about piping the new main and radiator run-outs. You'll also need to replace the existing boiler because it will now be oversized by a great amount.
@ September 25, 2011 8:27 AM in StumperReturn trap.
Where does that pipe with the vent go? To the boiler? Does it pick up any other piping?
@ September 23, 2011 6:53 AM in Max Vent LengthIn NJ, it's against code to vent under a deck. It's also not advisable to run the exhaust pipe any great distance in an unconditioned space because you could freeze the condensation inside the pipes. I would keep looking for another option. It's not always easy, but there is usually some way to do it.
@ September 23, 2011 6:44 AM in measuring air flowThe area of 6" round pipe is 28.26 sq. inches.
That makes 2.35 sq ft.
600FPM x 2.35 sq ft = 1410 CFM
If your gauge barely moved, maybe it was reading 0.01" instead of 0.02? Then...
300FPM x 2.35 = 710CFM
I've attached a document that does a good job of explaining the test.
@ September 23, 2011 6:34 AM in Humidifier EffectivenessThe humidifier is not mounted on ductwork - it is a standalone type and
draws air (intake) from the basement. The outlet (1) is a floor register
on the first floor.
There's the problem. It's not really a whole-house humidifier right now.
@ September 22, 2011 9:56 PM in High Boiler CO service or replace?I used to be involved with energy audits, and CAZ testing. We would go in for a tune-up after the initial company found high CO readings on an appliance.Sometimes my first readings were off the charts - 3000+ CO. An hour later, with just a manometer, a brush, and combustion analyzer, I would regularly bring gas appliances down to 0 ppm, or at least below 100.
@ September 22, 2011 9:46 PM in Short cycling Weil-McLain GV90+4...the boiler pump is shutting down on boiler temperature, but the system pump is still running from the switching relay or other control from the thermostat. When the boiler pump is off, you pretty much have a "standard" system, with one pump. Primary/Secondary is going to cause a bit of natural short-cycling because you'll always be bypassing water right back to the boiler. So far, I haven't seen it cause a problem yet.
@ September 21, 2011 6:46 AM in Indirect hot water heater heats the houseSounds like the heating pump is running, or a check valve isn't holding.
Is it possible to take pictures or make a drawing of the boiler piping?
@ September 20, 2011 8:35 AM in Improvised hydro fan coil?The numbers...
An average convector that is 4ft x 3ft x 6in will produce about 50 sq. ft of radiation.
At 120 degree supply water, a 20 degree delta, makes the average water temperature in the radiator 110 degrees.
The radiator will produce 150 BTUH.
So for your 8000 BUTH heat loss, you'll need roughly 54 convectors.
My math is estimated, not taking into consideration how multiple convector elements would combine into one single enclosure.
@ September 19, 2011 9:19 PM in 50 years in the gas industryI agree that the good guys are fading away, but can never be completely run out. We're not in the-age-of-robots yet, and we'll always need educated technicians making the important decisions, because there might be a lack of solutions, but there won't ever be a lack of problems. And problems don't heat your house.
@ September 19, 2011 9:06 PM in How should I set THIS pressuretrol?Set the big wheel to 0.5 - That is your cut-in pressure.
Set the little differential wheel to 0.5 as well, or 1. That differential appears to be additive.
@ September 19, 2011 9:00 PM in 50 years in the gas industryI bet I've learned more about natural gas by reading a few of your books, and most of your posts here, than from anyone out in the field. This industry will always have guys with "fluffy experience". Nothing will change that. But, all of the compliments I get from customers are regarding the way that I present myself in a straight-forward and educated manner. Those "overnight experts" will always have an audience...until the audience gets smart to it. The top techs in the business aren't going anywhere. They just might be spread out a little more than what's comfortable for us.
@ September 17, 2011 8:11 PM in Feet of headThe HX manufacturer should give you a pressure drop.
You can run any number of GPM through any size pipe. It's just not always practical...or quiet.
@ September 16, 2011 9:06 PM in water feed on which side of the Hartford Loop1. Use hot water to feed the boiler.
2. End all worries.
@ September 16, 2011 5:49 PM in Boiler Pilot goes out with cover...that there is a higher draft produced with the door in place, blowing the pilot out. You should test a few other things out first before pinpointing the problem to the door.
@ September 16, 2011 8:10 AM in Aquastat controlsSounds like you need a low limit aquastat for the existing boiler. It would probably be best to put a triple aquastat on though, so you can use it as the primary boiler if the wood boiler ever goes out of service.