MikeyVon
New Member
I am using flat panel radiators to heat my new home. I am trying to size my heat exchanger and pumps to run off of my water heater (Smith Vertex 76K BTU). My total heating load is 36K BTU per hour.
I am using Veha radiators. There are 9 radiators on 8 zones (2 will be in series in the basement). I will be using a homerun system with a manifold. The average length run is around 70' using 1/2 O2 barrier pex. The longest run is 120' the shortest being 40'. I will be using the radiator valves to balance the flow (i hope). I will be using trv's to control zone temps.
I will be purchasing my supplies from pexsupply or fergusons.
I am looking at Heat Exchangers, but I am uncertain what size I need. They have 14, 20, & 30 plate in the 3"x8" size and they have many different models in the 5"x10" size. Is there a general rule on BTU transfer for heat exchangers?
For pumps, I have been thinking about using taco's OOR 3 speed on the radiator side
http://www.pexsupply.com/product_dtl.asp?pID=5641&brand=Taco&cID=289
Does this size seem correct? I need a bronze pump on the water heater side correct? What size would I need there?
I am also planning on an expansion tank, bypass valve, air eliminator, various temp and pressure gauges.
I am using Veha radiators. There are 9 radiators on 8 zones (2 will be in series in the basement). I will be using a homerun system with a manifold. The average length run is around 70' using 1/2 O2 barrier pex. The longest run is 120' the shortest being 40'. I will be using the radiator valves to balance the flow (i hope). I will be using trv's to control zone temps.
I will be purchasing my supplies from pexsupply or fergusons.
I am looking at Heat Exchangers, but I am uncertain what size I need. They have 14, 20, & 30 plate in the 3"x8" size and they have many different models in the 5"x10" size. Is there a general rule on BTU transfer for heat exchangers?
For pumps, I have been thinking about using taco's OOR 3 speed on the radiator side
http://www.pexsupply.com/product_dtl.asp?pID=5641&brand=Taco&cID=289
Does this size seem correct? I need a bronze pump on the water heater side correct? What size would I need there?
I am also planning on an expansion tank, bypass valve, air eliminator, various temp and pressure gauges.