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.
Converting from propane to natural gas
Options
giardina850
Member Posts: 5
in Gas Heating
I am converting a propane heater from propane to natural gas. The unit is 100,000 btu. The propane was 11 inch water column. The natural gas is max 7 inches water column . Changed gas valve no problem. I need to drill out the nozzle. Polished off one of the nozzle and found a number 55 on it. How do I know how big of a hole to drill nozzle out. Can some direct me to a chart that would show some options. I had a hard copy of one years ago, but its long gong. It’s not to often that I convert from propane gas to natural.
0
Comments
-
Here you go"If you can't explain it simply, you don't understand it well enough"
Albert Einstein1 -
-
Try it this way"If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
It's not downloading properly. What I got for the pdf link was a pdf, but the name was a file called 'Gas, no extension & note the single quote at the beginning. After I renamed it, it opened fine. The spreadsheet wouldn't download at all.
Might be a Valillabox issue, @Erin Holohan Haskell?
0 -
Maybe it'll work this waySingle pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0
-
Nope.
All well, I tried.Single pipe quasi-vapor system. Typical operating pressure 0.14 - 0.43 oz. EcoSteam ES-20 Advanced Control for Residential Steam boilers. Rectorseal Steamaster water treatment0 -
Thanks Zman.
I successfully downloaded chart. Found the 55 for the nozzle. Then I go across to the proper pressure and I see number. How to I convert that number to a drill bit size?0 -
That orifice will supply 18,888 btu/hour with 11" propane,do you have 5 of them to add up to ~100,000?
You then need to find the correct size orifice for the pressure you are running in natural gas. If your manifold pressure is 7" (definately check your actual pressure), a NO. 49 would be pretty close at 19,135."If you can't explain it simply, you don't understand it well enough"
Albert Einstein0 -
For some reason it's not recognizing it as a pdf, probably because it has put single quotes around it.
But you can download it to your desktop, then right click and choose 'Open with' and choose Acrobat.
The Excel file didn't open either. I sent a message off to Erin.
Maybe it's a browser issue, not necessarily a website issue.
There was an error rendering this rich post.
0 -
-
-
With 100,000 BTU's how many burners do you have? The outlet pressure from the gas valve on natural gas should be 3.5" W.C. Give me the number of burners and I will give you an orifice size.0
-
After some tests, it looks like this is what's happening. I'm not sure what's going on with the file, but you have to choose what to open it with.STEVEusaPA said:For some reason it's not recognizing it as a pdf, probably because it has put single quotes around it.
But you can download it to your desktop, then right click and choose 'Open with' and choose Acrobat.
The Excel file didn't open either. I sent a message off to Erin.
Maybe it's a browser issue, not necessarily a website issue.President
HeatingHelp.com0 -
When downloading the file it adds an apostrophe before and after the file name, if those are deleted from the file name it opens normally.
Not sure where the apostrophe's came from, but that appears to be the issue.1 -
I believe you said you changed the gas valve?
It may be set for 3.5" WC output.
If there is a pilot burner, that orifice may have to be changed also. IMO0 -
ok, thanks guys. I think I got this now. Good heads up on checking gas pressure on the new gas valve. I will check out.0
-
For the pilot you want an .018 size orifice. Again if you will give me the number of burners you have I will give you the orifice size for natural gas on the burners.0
Categories
- All Categories
- 85.7K THE MAIN WALL
- 3K A-C, Heat Pumps & Refrigeration
- 49 Biomass
- 424 Carbon Monoxide Awareness
- 72 Chimneys & Flues
- 1.9K Domestic Hot Water
- 5.2K Gas Heating
- 92 Geothermal
- 149 Indoor-Air Quality
- 3.2K Oil Heating
- 59 Pipe Deterioration
- 847 Plumbing
- 5.8K Radiant Heating
- 372 Solar
- 14.5K Strictly Steam
- 3.2K Thermostats and Controls
- 50 Water Quality
- 48 Industry Classes
- 47 Job Opportunities
- 15 Recall Announcements