Can anyone provide information on how load the circulation fans are for the FireplaceX Apex 42 Clean Face, the RSF Focus 320, or the Pacific Energy model Pacific FP30. I am shopping for a contemporary look for the fireplace and these 3 meet that spec, however I have not been able to find information on the noise level of the fans. I have a Heat'n'Glo northstar 36 that is very noisy when the adjustable fan switch is set at more than about 40%.