pump sizing

Randy Bultmann

Good morning, sometimes I hate being a homeowner, I just replaced my water heater yesterday and then this morning I find out that the orig B&G pump seized on my boiler. Now my question will be what can I replace it with? I have 3/4" copper piping with fin tube rads. Approximate total run is 190'-0"+/- (48' fin tube). I thought that since I had the system down I would add another run to a hallway that has an exterior wall that is always cold, adding approx another 35'-0" run (6' fin tube) total. I have no idea how to size a pump for this but was wondering if something like a Taco 007 or equivelant would work, I know they're reasonably priced. Thanks a lot!

Al Letellier

pump sizing

Without seein the layout, and doing all the math, and if the B&G is a 100 and the system works when the pump does, a 007 should work just fine and should fit in the same place. While the system is drained, install some shutoff flanges or service valves either side of the circ if they don't exist already. Well worth the few bucks to save a lot of labor expense down the road.

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