purging lines when converting from lp to natural?

[just robert]

Just a follow up to bring my saga to a conclusion.
The gas utility company tied into the building and I converted all the units from propane back to natural(they were ordered 5 years as nat. gas and were converted to propane at that time in anticipation of nat. gas coming one day).
Everything went well.
Upon startup a few of the hot air furnaces clearly had a "hotter" flame for a second or two but other than that no discernible issues were noted.
It's been about a month now and the first set of gas bills are starting to trickle in,with noticeably lower costs vs.propane.
The tenants are happy!
Thanks again for everyone's help!
Bob

[RoBoTeq]

Just a follow up to bring my saga to a conclusion.
The gas utility company tied into the building and I converted all the units from propane back to natural(they were ordered 5 years as nat. gas and were converted to propane at that time in anticipation of nat. gas coming one day).
Everything went well.
Upon startup a few of the hot air furnaces clearly had a "hotter" flame for a second or two but other than that no discernible issues were noted.
It's been about a month now and the first set of gas bills are starting to trickle in,with noticeably lower costs vs.propane.
The tenants are happy!
Thanks again for everyone's help!
Bob

Always good to know when things work out.

[koolkahuna]

The worse that would happen is the burners would burn a little hot for a minute or so until the LP gas is burned off. Up to 20% of LP is mixed with natural gas during really cold weather in some areas.

You've got class Robo. No "I told you so".
WDGAFS.

[OldSchoolMech]

I wanna see proof that propane is mixed with Natural gas to bump up demand. I have never heard or read this and I am in a cold climate with NG

I got a new idea NG furnace propane kit gives it a shot of propane on those colder days extra BTU when you need em like a NOS kit for your car.

[RoBoTeq]

You've got class Robo. No "I told you so".
WDGAFS.

Hell, I just forgot what we were originally discussing....

Thanks for taking notice..