300,000 union steam

Snowmelt

Over the weekend I brought a steam boiler down the basement of a customer, it was over 800 pounds. I just put the burner and gas valve in today.

EBEBRATT-Ed

Brought down in sections I hope LOL

Snowmelt

Came disassembled, this is the biggest one I did, I’m going to use the three inch drop header. Wish me luck.

Snowmelt

This is 800 plus pounds

delta T

I ordered a Burnham IN-12 (815 lb shipping weight) in sections last winter, emergency replacement, wholesaler screwed up came as an assembled block. Me and 3 people, a truck with a winch, an appliance dolly two engine jacks, lots of straps and rope, and 4 hours later we had it down the stairs and on the base.

0/10 would not recommend. Would have sent it back if it wasn't 1 week+ to get one in sections. 12 unit apartment complex, 30 degree weather, had to get it in ASAP.

@Snowmelt looking good so far! Have fun!

ChrisJ

A 3" header seems on the smaller size for that boiler, no?

Danny Scully

I agree with @ChrisJ. I would do the math on that velocity @Snowmelt...which i just did and 3” actually works on paper (assuming you’re using both 3” risers), but I would upsize it to 4 if possible.

Snowmelt

The previous piping was done with 2 inch, 3 inch will have to be..... that’s there budget..

The Steam Whisperer

Yeah, Peerless even uses a single 3 inch riser on header for 345,000 input 64 series. Smith uses only 1 3 inch riser and header up to 587,000 input on the 19HE. The header is doing the work of separation, not the reduced velocity in the risers.

Dave0176

When I install an EG 55-75 it gets a 4” header. GSA300,000 is an EG75.

SeanBeans

@The Steam Whisperer (Formerly Boilerpro) Even if your two risers are 4’ long?

The Steam Whisperer

Either the velocity is low enough or not. A single 3 inch riser can allow water to fall back up to around 200,000 input. The taller risers probably help let the foam break down so it doesn't spill into the header, which I'm sure helps, but after the foam breaks up, I believe it is strictly velocity after that.

Snowmelt

Dave, I saw the drop header in birdsall, I’m pretty much going to copy it, but again, budget stopped me from using four inch, on the pig tail, on a display of the boiler right next to the one you did I seen some sort of drop piping for the pressure trol and guages
What do you guys think of this.

JUGHNE

I do the drop pigtail on units that have several devices to protect.
However, I raise every thing up with 1/4" brass or SS nipples to get it above the water in the drop pigtails.
Also use tee's with plugs or crosses for cleanouts. If the 1/2" piping stays clean then most likely the longer 1/4" risers are clean also.

Snowmelt

That does look sweet I’m going to try that on this boiler.