Where can I find wholesale prices on insulated dual 1" I.D. pex in southwest Michigan, I need 150'. Any recommendations out there? Also need a price on a 60 plate water to water heat exchanger to be used with my hot water boiler system. I will be picking up a used four year old stainless Heatmor model 200 within a week. Any comments welcomed, I am new to the outdoor boiler stuff and have been heating my 3000 sq ft house with a Quadrafire fireplace insert for the past 6 years, wife is tied of the mess.