I piped my eko to storage with 1.25 just wondering if anybody piped with 2" to there storage? And what are the benefits ? Smaller pump can be used?
Pipe sizing
- Thread starter Millwork
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What length of piping? If boiler and storage tank are both in the same room, there is no benefit. And on a long run, a larger pipe would allow you to use a smaller pump, but the piping would cost a lot more.
heaterman
Minister of Fire
Pipe sizing depends on flow required..........
Flow required depends on 2 things,
BTU needed and temp drop you can work with. The greater the temp drop generated the less flow required.
Rough rule of thumb for flow capacity of steel pipe or copper tube
while keeping velocity within reason. (I figure about 15% less for equivalent pex diameters)
3/4" 4GPM
1" 8GPM
1-1/4 15GPM
1-1/2" 22GPM
2" 45GPM
2-1/2 85 GPM
3" 140GPM
Flow required depends on 2 things,
BTU needed and temp drop you can work with. The greater the temp drop generated the less flow required.
Rough rule of thumb for flow capacity of steel pipe or copper tube
while keeping velocity within reason. (I figure about 15% less for equivalent pex diameters)
3/4" 4GPM
1" 8GPM
1-1/4 15GPM
1-1/2" 22GPM
2" 45GPM
2-1/2 85 GPM
3" 140GPM
For simplification I believe all of the EKO boiler come with 2" fittings including my EKO 25 which I too plumbed with 1-1/4",in my case1" would have been sufficient but I had a glut of 1-1/4" fittings and valves.
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