Frequently Asked Questions

My propane filler has questions regarding the CoMet

Because the CoMet is the next generation of portable propane cylinders, some filling centers may not yet be familiar with the product.  Some stations may confuse the CoMet with fiberglass propane tanks and may have a policy preventing service, or are uncomfortable with such tanks. The CoMet contains a steel vessel underneath the plastic jacket and composite winding and is Department of Transportation (DOT) and Transport Canada (TC) approved. Show the attendant the language on top of the CoMet indicating that it contains a steel liner.  If the filling station still has questions, they may contact us directly at (800)426-8765 M-F 8am-5pm EST.  Technical Documentation Download

Will a CoMet propane tank fit my application?

The CoMet is designed to fit in place of a traditional 20lb steel propane cylinder. You should have no problems fitting the CoMet in your grill. Please note that some grills utilize special tank hanging brackets and scales. If you inform us your grill brand in, we will notify you of recommended accessories. If not, please take notice of your particular application. Please note that the CoMet fuel gauge should take precedent over your grill’s built-in unit. The CoMet’s lightweight design may cause inaccuracies with grills designed to accommodate heavy steel propane tanks.

What is the CoMet Propane Capacity?

The CoMet can hold 11lb of propane with a total filled weight of approx. 22lb., making it simple and easy to carry even when full.

What valve is used on the CoMet and how I do I read the level indicator?

The CoMet is equipped with a specially designed UL approved OPD valve incorporating a built in pressure level gauge, a safety relief device and a fusible plug set up to 212°F (100°C).
The OPD valve operates inside the upright cylinder and is activated as the liquid propane in the cylinder rises to a level that pushes a float upward stopping the flow of gas into the bottle.
The pressure level gauge reads the dynamic pressure of the cylinder and has two windows identified by the sun and a snowflake. When the cylinder is not being used and the valve is closed, the level gauge may indicate red.
Always check the gauge 10 minutes after starting cylinder use. For temperatures equal to or above 65°F (17.8°C), check the sun window.
For temperatures equal to or above 65°F (17.8°C), check the sun window
If the sun window is green, the propane reserve is at least 1.1lb (0.5kg). If the sun window is red, the cylinder has less than 1.1lb (0.5kg) of propane and should be refilled.
For temperatures equal to or below 64°F (17.7°C), check the snowflake window:
For temperatures equal to or below 64°F (17.7°C), check the snowflake window
If the snowflake window is green, the propane reserve is at least 1.1lb (0.5kg). If the snowflake window is red, the cylinder has less than 1.1lb (0.5kg) of propane and should be refilled.

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