Replacement Boiler Circulator?

[Beemer]

Looking for information on replacement circulatory for boiler.
The particular 3/4" pipe second floor loop doesn't have have a large amount of baseboard, maybe 30 feet, but the overall piping is fairly long and has several ups and downs accessing various second floor areas.
The house has two circuits, each with its own circulator but the interest is only regarding the one second floor loop.
I have access to a free new 009 circulator that could be used to replace an existing 007.
Would using it create any issues?

 

[chinboys]

What sort of delta T are you looking for between the boiler outlet and its return?
The ideal is 20 degrees F.
Get a smart sensing circulator that can get you there or a manual three speed one.

 

[dscheidt]

What sort of delta T are you looking for between the boiler outlet and its return?
The ideal is 20 degrees F.
Get a smart sensing circulator that can get you there or a manual three speed one.

20F is used because it makes the math easy, not because it's a magic number. (20F delta-t is 10,000 BTU/hr per GPM of flow.) It's a reasonable design number, for lots of situations, but it's not right for everything.

 

[fitter30]

009 has a lot more head than a 007 but less gpm. Dince you have the pump I'd try it. Not knowing how the floor is laid out is there any valves on the fin tube for balancing or is it one big loop?

 

[Beemer]

009 has a lot more head than a 007 but less gpm. Dince you have the pump I'd try it. Not knowing how the floor is laid out is there any valves on the fin tube for balancing or is it one big loop?

One big loop and no valves or splits. Approximate total 3/4" pipe length including baseboard units is 230 feet. Only 32 feet of baseboard up there. Long pipe length because it criss-crosses the space and rises and drops twice.
Does it seem like friction head is the main target rather than BTU needs due to short baseboard total?

 

[Jackfre]

Does the space heat as it is? If so, I’d leave it and keep the 009 on the shelf. 30’ of pipe when uncapped is going to put a bit of air in the system. It may purge out easily or be an invitation to your own personal twilight zone.

 

[Beemer]

Does the space heat as it is? If so, I’d leave it and keep the 009 on the shelf. 30’ of pipe when uncapped is going to put a bit of air in the system. It may purge out easily or be an invitation to your own personal twilight zone.

Yes it heats. But one circulator needs replacement so something has to go in there.
30 feet? It's 230 feet of 3/4" copper tubing.
There are bleeders on every baseboard and all drops including small ones. Purging air has never been a challenge.