My tenant just moved out and I went to do the walkthrough on the home. My propane fireplace behaves one of two ways at startup:
Normally: takes 5-10 seconds to start and then works as usual.
When I turn on the switch, after a few seconds I see a tiny flame in the fireplace. It stays like that for about a minute (no more clicking). After the one minute, the flame gets bigger and the fireplace visually works as usual but makes a really loud "wind" noise.
This "wind noise" only starts when the fireplace is turned on, so it has nothing to do with the chimney or the outside wind. Once the fireplace is on and is making the noise, the noise won't stop until I turn the fireplace off.
I thought for a while that the tenant may have turned off the propane and it could be an issue with the propane pressure, but the boiler is working fine, central heating, stovetop and the fireplace itself apart from the noise.
The issue seems to be a hit or miss: sometimes the fireplace makes the noise, then I turn it off and when I turn it back on it works as usual.
I'm in Texas.
Link to video: https://vimeo.com/777819739