Re: Steam radiator vents and explosions
I don't know much about steam heat, but I do know this: for a one-pipe system, all pipes must be properly sloped. You want it all uphill from the boiler to the radiator. If there's any downhill slope at all, condensate (water) will get trapped in the low spot, then you'll get the typical banging noise as the steam pushes past the water. Look for any sagging pipes and support them maintain proper slope. Also look for improper repairs, and have a boiler tech fix it properly.
Even for a two-pipe steam system, you have to make sure the slope is correct both on the supply and the drain. It's not as important for a two-pipe circulated hot water system.
If a low spot is unavoidable, special condensate traps are available for installation in the low spot.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.