One of the largest markets for the solar industry is heating your pool with solar energy. . 2) I am planning on making coil type collectors using polyethylene pipe. . Is it better to use 1-1/2' pipe or 2' pipe for the manifolds? A good design for a DIY pool heating collector is to use thin wall 1/2 pvc irrigation pipe with 3' PVC . is this this kind of fitting you use to connect the half inch to the 3 inch: . You connect the threaded fitting to the large header(manifold). The idea offered below for a simple DIY solar pool collector could be built for about 1/4 . Water from the pool is pumped to a manifold that runs along the top of the Here is a rough cut at how much heat output you might get from this kind of . Jan 3, 2012 - DIY Solar Pool Heater Installations. . Then strap the manifold assembly to the roof to hold it in place. Finally, install the side straps to help hold . Aug 10, 2012 - . to have the water remain in the 'manifold' for a longer period of time, heating it up more. . Solar heating is about square footage exposed to the sun. Generally it is usually cheaper to buy the solar panels over a diy setup of . My (OLD) Homemade Solar Pool Heater . On the right you see the manifold made of 1 and a half inch PVC with inch and a half by 1/2 ' threaded T's. The . Apr 17, 2009 - I made this solar-powered swimming pool heater out of common . I cut it in half and laid the two sheets under the copper manifold I made Extra time swimming in the spring was really not that much, because you kind of want it to be good and . Portable Solar pool heater 1,04 k Watt DIY - Instructables . My latest DIY project was to re-instate my solar pool heater. . The inlet and return manifolds are made from 25 pcs. of 1 1/2″ x 1/2″ PVC reducer tee's. Barbed .