I am running my 1.25 inch thermopex through my basement wall about 4 feet down from the top of the wall and then sweeping it up to the floor trusses. At this point I have to convert to standard 1.25 piping ( either copper or pex ) to run another 25 feet to the forced air furnace. Also where I convert I have to tee into the line and run 30 feet to the left to the attached garage for a water to air exchanger in the garage. Does anyone have any plumbing opinions or options? Would it be better to tee in for the garage at the furnace instead?