pilot on, burner on, both shut off in a few minutes

[Lakenouse man]

I would love to get some help with this...I appreciate any input...

Propane Gas Insert that performs as above. Manufacturer of the unit is Waterford and the model is Emerald. I have always had a problem getting the pilot lit but eventually it does light. Thermostat calls for heat and the burner ignites to full flame and in a few minutes, both the pilot light and burner are off. From what I can tell, I do not have an O2 sensor on the thing as I thought possibly the unit is starved for air.

The unit is about 17 years old. thanks for any thoughts-brian

 

[DAKSY]

Try lighting it with the glass front off or cracked open. If it doesn't go out in the same period of time, there may
be a problem with your venting. It may have a bee hive or bird's nest in the intake...
***CAUTION*** Do NOT burn your insert like this for any longer than it takes to test this theory.
CARBON MONOXIDE is a by-product of gas combustion & is deadly.*
I'd advise you to open a window in the room while you perform the test***CAUTION***
Let us know how you make out.

 

[Lakenouse man]

Try lighting it with the glass front off or cracked open. If it doesn't go out in the same period of time, there may
be a problem with your venting. It may have a bee hive or bird's nest in the intake...
***CAUTION*** Do NOT burn your insert like this for any longer than it takes to test this theory.
CARBON MONOXIDE is a by-product of gas combustion & is deadly.*
I'd advise you to open a window in the room while you perform the test***CAUTION***
Let us know how you make out.

Will do! going to be a week or two until I get back to that property

 

[Lakenouse man]

Will do! going to be a week or two until I get back to that property

Just reporting in. Analysis seems to suggest that I was not waiting long enough to allow heat coming off the pilot to warm the outgoing exhaust duct air which would allow more combustion air to enter. I suppose the problem was amplified by the fact that I had the flame set to high and I turned the burner on a few seconds after the pilot was lit. Essentially I starved the unit of air. Seemingly, all good now.