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How To Guides

How to Convert Celestial CSA Burner Kits to Natural Gas

Hi there!  I’m Joey from Celestial Fire Glass, and today I’m going to show you how to convert one of our propane CSA burner kits to natural gas.

Our CSA burner kits are very popular with DIYers.  Out of the box they make building a propane fire table very easy.  And, since they’re CSA certified they can be used in areas with public access such as restaurants and Airbnb rentals.  This CSA certification ensures that they’re safe to operate when installed properly.  For proper installation I recommend you have a qualified licensed gas installer make all of your gas connections.

If you have access to natural gas for your fire feature, our CSA burner kits can easily be converted to use natural gas.  To use these burner kits with natural gas you’ll need one of our natural gas conversion kits .

The Celestial natural gas conversion kit includes everything needed to convert our CSA burners from propane to natural gas.  It includes a hose with a quick-connect, natural gas orifice, and a sleeve to cover the propane air mixer.  When purchasing the natural gas conversion kit be sure select the right size.  The orifice in the conversion kit is sized according to BTU’s and will need to match the BTU rating of the CSA burner you’re converting.

The first thing you want to do is to unpack your conversion kit and take note of each component.  The conversion kit will include the hose assembly, a stainless-steel sleeve, and an orifice.

Then, you’ll want to remove the end of the flex hose attached to the bottom of the burner.  This will be tight, so be sure to use two wrenches to avoid damaging anything.  These are all standard threads, so it’s lefty loosey here.

Next you want to remove the coupling, again this will be tight so you may have to put a little extra torque on the wrench.  Now on the inside of the coupling remove the propane orifice and replace with the natural gas orifice.  You’ll notice that the new natural gas orifice is larger than the old propane orifice.  This is because natural gas has a lower heating value than propane.  For this reason, a larger volume of natural gas is required to produce the same flame height.

Now slide the sleeve over the propane air mixer.  Natural gas burns much cleaner than propane, so we don’t need to add air to the gas mixture.  The sleave won’t be tight, this is normal.  Now you can add the coupling with the orifice back and reattach the flex hose.

Now for the final part you want to disconnect the rubber propane hose and replace it with the new natural gas hose.  This is a flared fitting, so pipe tape should not be used.  The other end of the hose with the quick connect will then attach to your natural gas supply.  The fittings have half inch NPT threads.  These are tapered threads, so you’ll want to use yellow Teflon gas tape for this connection.  Once everything is hooked up all gas connections should be tested for leaks using soapy water.

When connected to natural gas, the burner requires a supply pressure of between 3-and-a-half-inch and 7-inches water column.  Your gas installer will know if they need to add a regulator to reduce your supply pressure.  They’re likely to have one in their truck, if not we do have the natural gas regulators available.

I always recommend you have a qualified, licensed gas installer make all of your gas connections. The Celestial technical support team is happy to answer your questions regarding the conversion of your CSA burner kit, or any of our products. We can be easily reached by phone and online Monday through Friday from 8 a.m. to 5 p.m. Eastern time.

I hope this video is helpful to understand what’s involved in converting Celestial CSA certified burner kits from propane to natural gas.  If you have any questions, feel free to contact us by phone or online – we’re happy to help.  To quote Samuel Johnson, “Celestial wisdom calms the mind”.   

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