odd steam systym

Boiler Guy

odd one: Original One pipe system where all the take offs are 3" vertical off the main to a 90 which serves the horizontal. I thought everything was supposed to come off @ 45* to prevent water hammer. Could this have been a very low pressure system that somebody is now trying to run @ 5#? Can you spell NOISY?

ed wallace

odd steam system

i looked at a steam system that has me a bit puzzled there is no return piping from the end of the main just a reducing elbow and a main vent but there is a 1 1/4 return dropping down from the main piping by the boiler any guesses what you would call this system?

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GW

Ed

Isn't that the old Counter-flow? Was it pitching really good? If my memory serves me, these systems do not require a Hartford loop.

Gary

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joe_14

sounds like


its a counter flow system which was used in small systems (under 100,000 btus) they used the supply main as the return. from what you posted it sounds like someone added a drip to the main just as it leaves the boiler. this helps to keep the steam dry. just my 2 cents.


good luck
joeg.

Mad Dog

The original system in my home

was one-pipe counterflow. Very simple. Mad Dog

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Boilerpro_3

I worked on one last year

The previous boiler installer lifted the mains at the boiler end, put in too big of a boiler, and then installed two 3/4 inch dry returns. Didn't work very well (can you say water hammer), since the rad supplies now sloped down to the rads and the mains were level in the middle. Put in the new boiler, dropped the main back where it belonged, ditched the dry, and fired up the boiler. Silince is golden!

Boilerpro

Dale

New England

I was once told the counterflow system was developed in rocky new england where the person wanted central steam heat instead of a wood burning 1700 fireplace. To get it you need a basement but a hole in the rock for a boiler and a counter flow makes for less rock digging under the house.

Goat Sr

New England Home

Thats what i have in my house. Counter flow system,with the main 1 pipe size larger for condensate to flow .And yes no hartford loop required.