I recently converted a beer brewing kettle from propane to natural gas. I
removed the regulator and plumbed the gas line in. The orifice was then
drilled out to about 1.5 times it original size. I did not know how much to
drill it so I snuck up on it using a drill index in about 5 steps until I
thought that the flame was about the same as it was with propane.
Unless the grill is listed by CSA International, or another nationally
recognized testing laboratory, as a duel fuel appliance it cannot be
safely converted. Both the regulator and the burner orifice would
need to be changed out. If a matched regulator and orifice are not
used; or if the venturi piping itself is too small for natural gas;
the appliance may malfunction the consequences of which can be quite
dire. If you undertake a do it yourself conversion and botch the job
you can jeopardize your fire insurance coverage on any fire that
results from that conversion.
NG is much lower pressure than propane. The threads for the
gas line shouldn't be much trouble. Hook your local NG
supply line into the burner. Don't use the propane
regulator. You'll have to drill the orifice a bit larger.
Like the other fellow said, try a little larger, and a bit
larger later, if that's not enough flame.
Asking that here is like asking what is the weather going to be tomorrow.
About 95. But probably not where you are at.
Converting from one to the other is no big deal. Orifices and pipes and
valve and regulators are all available. As mentioned, check codes, as you
want it right for insurance purposes. You MAY have a problem finding the
right orifices and "stuff" to do the job depending on the age and model of
Weigh the options of less portability, different cooking characteristics,
cost, etc, and decide whether it might just be best to buy a propane too.
I know in some situations, there is construction, remodel, demolition, or
age that dictates killing a natural gas cooking station.
I just did the conversion on a Charmglow. In this case, there was a
$50 conversion kit because it is sold as dual fuel. But here's what
the conversion actually consists of:
1 - Propane regulator and hose are removed and replaced with just a NG
hose, no regulator. The cost of just the hose would be about $40,
so it makes the whole kit a better option.
2- Burner orifices get removed and are not replaced.
3 - Bezels behind the burner turn on knobs get replaced. New ones say
Natural Gas and have a stop that shortens how far the knob will turn.
At first I thought this was to limit the max amount it will open.
But instead, it limits how low the burner can be set. I'm assuming
if you lowered it all the way like you could with propane, with NG the
flame might go out.
I've seen discussions online where folks converted other ones
themselves without a kit by just replacing the hose and drilling out
the orifices to a slightly larger size. I even saw a table of drill
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.