Hi, I just bought an Econoburn 150 but have not done any plumbing in the house yet. The boiler will sit outside under a sheltered uninsulated lean-to. I need a system that will supply 3 zones that each have 4 branches that are 250-300 ft coils. I would also like to provide plumbing for a 500 gal storage tank, 2 radiators, heat exchanger for a domestic hot water tank, and possibly might hook up my hot tub in the future. My econcoburn has an output of 150kbtu's and came with a grundfos 3 speed pump. I have 3000ft of 1/2 pex coming in the mail. I would like to do this piping myself to save money. I understand the primary/secondary loop design is best for my boiler. Can someone help me design this system?
I need to know things like:
What diameter should the supply/return lines be. should I use circulators or solinoid valves for the zones and what size should they be. how many and how large should the expansion tank be. should I use glycol or run the primary loop all the time or both? how many manafolds and what size. Suggestions for the heat exchanger for the hot water tank. Maybe someone knows of or has a pre-made diagram that has exactly what I need?
I need to know things like:
What diameter should the supply/return lines be. should I use circulators or solinoid valves for the zones and what size should they be. how many and how large should the expansion tank be. should I use glycol or run the primary loop all the time or both? how many manafolds and what size. Suggestions for the heat exchanger for the hot water tank. Maybe someone knows of or has a pre-made diagram that has exactly what I need?