I bought an RADVT propane . I was able to get it to work before putting it in my home. Now that its installed and hooked to a propane tank the pilot wont light. I have it open and am using a lighter(spark also sparks) . It seems there is no gas flow to the pilot. My other question is this is hooked to a B vent system through and old brick chimney with a proper liner and rather than trouble shooting and buying parts for this old system can I just put ventless gas logs in the thing and have the convenience of a remote and instant lighting.