Well I probably should have done a little more homework but already purchased and installed 1 inch thermopex from Central Boiler dealer. I have about 254 feet total loop. I realize the pipe only has an I.D. of 3/4 inch. I purchased a Heatmaster 4400 used only 5 years for $2K and that will be the outdoor wood burner. I have a Lokinvar propane boiler rated at 150,000 btu in basement with zoned pumps to my infloor radiant heat plus a boiler mate for DHW. My house is super tight ICF rated at R50 equivalent walls and R60 in ceiling but my heat loss is way too large of windows and lots of them that the wife picked out. I have been averaging $3K in LP use because we are in the far north on Lake Superior in the UP of MI. and have around 4000 sf heated with basement and have 6 people living in the home. My wife 4 daughters and myself so lots of hot water use. So I will be installing a 50 plate heat exchanger to isolate the open loop from my closed loop system. I was advised to install a really good hot water filter on the open loop prior to the heat exchanger to prevent any crud from plugging up the plate exchanger. I found a strainer with a magnetic core that will filter out any particles and also trap any ferrous particulate. It is rated at 13gpm so this is where I may have screwed myself already as the 1 inch thermopex is in the ground and the stove is set. I am thinking of installing Webstone full port valves on the open loop side of the plate exchanger so I can back flush it as needed. or even pump vinegar or cleaning solution through it as needed. I have really good well water but was told the efficiency of the plate will go down as scale builds up over the years and with regular back flushing you can restore it somewhat. The wood master came with a Taco pump and was located about the same distance from the home from the guy I bought it from. He hooked up to Natural Gas so that is why he didn't need it anymore. He had water to air heat exchanger and 1 inch pex in foil bubble wrap. So I don't know if my plate exchanger, and the filter fittings would be too much restrictions or I will be fine. Any advice is greatly appreciated as I haven't purchase the hot water filter but I like that is has a strainer and the magnetic core that you can clean. I have read that it is way better than just a wye strainer. The filter is called BoilerMag. I also looked at the Rusco spin down sediment trapper filter/strainer which is rated at 20 gpm. Thanks in advance.