zl700 thanks for all your help I have regular air scoops on 90 elbows(not sure of the proper term). My loops are actually 400+' each. Hence the larger circ pump. I agree the 150 is high I just bumped up to try to get warm. My design was done by Fred Seton.
www.radiantdesigninstitute.com
All material is from Blue Ridge Radiant they and Fred both said with proper foil double bubble wrap underneath in the joist bays that the transfer plates were not needed.
www.radiantdesigninstitute.com/page4.html
I can still put them on the first floor which is worse off then the second. The first floor is existing constuction had 1X8 lapboard exterior so even though brand new insulation not quite as tight as second floor. The first floor is also 9.5' ceilings over unfinished basement which has 1 loop per joist bay 8" center and has foil double bubble and R13 underneath. It has the boiler and a pellet stove in the basement and stays about 50-60 degrees.
My dad has one of those infared thermometers. I will get temps for you today.
I had some air and purged all loops a couple of days ago. Its is definately better but still cant hold 68-70 overnight on the firstor second. Second drops to 64-65 and first to 60 or below. What should I be able to get as a high temp and hold. 67 is comfortable when outside temp is 40ish and no windchill. If I get to where I hold high 60's I should be ok (but would love to get into the 70's even though I am sure I would never set it that high!).
A couple serious questions I guess are the nail up fins that much difference? Its seems people used to strap copper up and have good outcomes with alot poorer insulation and window drafts!! I cant understand that a flat piece of aluminum can make 5-10 degrees difference especially in the secong floor where it is incased in an insulated bay and has no place to go. Also if I did a sandwich using quicktrax or something similar I would have the same amount of tubbing loops(BTU outut) as I do in the just bays 8" appart for the most part.
The other question is my flow rate. If I dont have a good flow rate that effects me obviously. My delta T is about 15-20 depending on outside temp and how many loops are flowing (never over 20 but can hold 20) which obviously hinges on outside temp. I am maintaining a miniumum of .5GPM usually more(depends on # of loops open). My loop flows are always pretty equal GPM reguardless of # of loops flowing. Do I need more flow? I am not sure what this will change. I can put a larger pump in currently a taco 0011. Again thanks for the support and help.