Last fall I purchased a Garn 1500 and this spring I plan to hook it up. I am trying to put the electrical requirements of the house heating system (including indirect DHW circulation); on a solar/battery system so I am sensitive to the electrical consumption of various pumps, particularly the one from the Garn to the heat exchanger as that will be continuous 24/7 & 365.
Within the house to the different zones I am planning on using the very efficient El Sid 20 pumps that are rated for 5 gals.
My problem is trying to move hot water from the Garn which is 95 feet and 10 pressure head from the heat exchanger in mechanical room in the basement. The volume I calculate for the required BTUs is 14-20 gal/min. Since finding a long life low wattage dc pump with that capacity seems almost impossible I am considering using 4 or 5 el Sid pumps.
What I do not understand is how exactly to hook them up so it would actually work as I'm no plumber by any stretch. Would it be best to have a manifold off the Garn and run 5 separate delivery and return lines underground? If I did this would I require 5 small heat exchangers or just a single manifold where the lines could come together at one large heat exchanger?
Or am I just way out to lunch? Any help or advice would be greatly appreciated.
Within the house to the different zones I am planning on using the very efficient El Sid 20 pumps that are rated for 5 gals.
My problem is trying to move hot water from the Garn which is 95 feet and 10 pressure head from the heat exchanger in mechanical room in the basement. The volume I calculate for the required BTUs is 14-20 gal/min. Since finding a long life low wattage dc pump with that capacity seems almost impossible I am considering using 4 or 5 el Sid pumps.
What I do not understand is how exactly to hook them up so it would actually work as I'm no plumber by any stretch. Would it be best to have a manifold off the Garn and run 5 separate delivery and return lines underground? If I did this would I require 5 small heat exchangers or just a single manifold where the lines could come together at one large heat exchanger?
Or am I just way out to lunch? Any help or advice would be greatly appreciated.