I came across a Atwood repair document that went into detail with respect to the BTUs of a bottle based on its percentage of fill and the outdoor temp. My other LP appliances seam to run fine, i had also read that the Atwood furnace is much more temparmental with respect to pressure than are fridges, ranges ect. However my LP gas water heater doesnt seam to have a issue. As for the splitter i am going to have a look at that this weekend, I bought a sniffer and a mamometer so i guess i will play around and see what i can figure out. Thanks for the reply