Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
Clocking a 2# Gas Meter
Zman
Member Posts: 7,611
A while back there was a discussion about adjusting the BTU content of natural gas in a 2# system.
Someone posted a formula that even allowed for a high-altitude adjustment.
I know I saved the darn thing but cannot find it.
Does anyone remember or know the formula?
Someone posted a formula that even allowed for a high-altitude adjustment.
I know I saved the darn thing but cannot find it.
Does anyone remember or know the formula?
"If you can't explain it simply, you don't understand it well enough"
Albert Einstein
Albert Einstein
0
Comments
-
-
(Atmospheric pressure + gas pressure) / base pressure = pressure correction
Atmospheric pressure = the atmospheric pressure at your location.
Gas pressure = the gas pressure entering the meter
Base pressure = the referenced atmospheric pressure that your gas supply company uses. Most of the time this is equal to atmospheric pressure, but sometimes it is not.For example, where I live the atmospheric pressure is 14.73. Washington gas uses a base pressure of 14.92.
So my pressure correction at 2 psi would be:
(14.73 + 2) / 14.92 = 1.12Never stop learning.1 -
Never stop learning.0 -
@Mike_Sheppard
Thanks for the follow up.
This formula checks out with an estimate I made for a spread sheet a few years ago using an actual high and low pressure meter in series. High altitude makes a big difference in the correction factor.
"If you can't explain it simply, you don't understand it well enough"
Albert Einstein0
Categories
- All Categories
- 86.3K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 53 Biomass
- 422 Carbon Monoxide Awareness
- 90 Chimneys & Flues
- 2K Domestic Hot Water
- 5.4K Gas Heating
- 100 Geothermal
- 156 Indoor-Air Quality
- 3.4K Oil Heating
- 63 Pipe Deterioration
- 916 Plumbing
- 6K Radiant Heating
- 381 Solar
- 14.9K Strictly Steam
- 3.3K Thermostats and Controls
- 54 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements