Gas regulators

[Joe Funderburk, CMI]

Is there a rule that states where they have to be in relation to the appliance, or must they just be present. Seems like I've always seen one at the furnace...until I noticed this one yesterday. The regulator was in the crawl (furnace in the attic).

[Charley L. Bottger]

Originally Posted by jfunderburk

Is there a rule that states where they have to be in relation to the appliance, or must they just be present. Seems like I've always seen one at the furnace...until I noticed this one yesterday. The regulator was in the crawl (furnace in the attic).

Attachment 27419

Don't have regulators on any furnaces here regulators here are on the gas meter and or propane tank you have me totally lost???? explain please

[Joe Funderburk, CMI]

Here's one at a gas water heater.

[Charley L. Bottger]

Originally Posted by jfunderburk

Here's one at a gas water heater.

Attachment 27425

Strange to me your gas provider must operate at much higher pressure than we do the only time I see a regulator at the appliance is on a cook stove built in by the MFG Perhaps your gas company is getting a kick back from the MFG of the regulators

[David A. Andersen]

Is that Natural Gas?

I never see regulators at appliances in residential applications around here either.

[Joe Funderburk, CMI]

Yes, natural gas. And like I said, it's very uncommon not to see one at each appliance here.

[Charley L. Bottger]

Originally Posted by jfunderburk

Yes, natural gas. And like I said, it's very uncommon not to see one at each appliance here.

Every appliance MFG requires X inches water column of gas pressure for their appliance to operate makes sense to me for the regulator to be at the appliance for ease of adjusting pressure if for no other reason. Still strange though

[Michael Larson]

Not strange here.

2 p.s.i. gas often runs to a master regulator to provide 11" water column but often I see a regulator at each appliance.

Both methods are used around here.

[Bruce A. King]

Ok probably (bad practice though), as long as you are sure the one in the crawl was for the furnace and not the fireplace or stove.

On really large homes with multiple gas units (2 water heaters, 2 fireplaces, cooktop, 2 furnaces) I find undersized gas lines and undersized regulators very often.

You did catch that flex appliance line going into the furnace cabinet?

[jallcroft]

Originally Posted by bking

Ok probably (bad practice though), as long as you are sure the one in the crawl was for the furnace and not the fireplace or stove.

On really large homes with multiple gas units (2 water heaters, 2 fireplaces, cooktop, 2 furnaces) I find undersized gas lines and undersized regulators very often.

You did catch that flex appliance line going into the furnace cabinet?

I don't think I saw a dirt leg either.

[Charley L. Bottger]

Originally Posted by jallcroft

I don't think I saw a dirt leg either.

In my area drip legs are not allowed in attics or the exterior where any possibilities of freezing exists

[Joe Funderburk, CMI]

Originally Posted by bking

Ok probably (bad practice though), as long as you are sure the one in the crawl was for the furnace and not the fireplace or stove.

On really large homes with multiple gas units (2 water heaters, 2 fireplaces, cooktop, 2 furnaces) I find undersized gas lines and undersized regulators very often.

You did catch that flex appliance line going into the furnace cabinet?

Bruce, you bring up a good point. I didn't count the regulators and make sure that each appliance had one. I think I'll refer it out.

Yes, I caught the appliance connector going into the cabinet. Regarding the drip leg, I no longer say anything about them because the local utilities here don't care about it on residential construction.

[David A. Andersen]

2 p.s.i. gas often runs to a master regulator to provide 11" water column but often I see a regulator at each appliance.

Doesn't the gas valve in the appliance deliver the required regulation for the appliance?

[Michael Larson]

Originally Posted by dandersen

Doesn't the gas valve in the appliance deliver the required regulation for the appliance?

Of course it does. Your point?

[David A. Andersen]

It's a question!

Explain the regulation of pressures. Do they have a higher secondary pressure for better distribution that requires further control before the valve?

I have never worked in an area where this was required in residential application. I can't go out and figure it out. Do you mind my question?

Oh ****, is this outside my SOP? I think it may be! Well lookie here, I don't need to know this crap! Never mind.