Circulator pump starting to fail.

Sweet_Lew

Good Evening All,



Tonight I started to hear a weird noise eminating from the radiators. I went down to the basement and heard the noise coming from the heating system (Hot water boiler). It was the circulator pump making a slight grinding noise. How concerned should I be in replacing it? I'm trying to hold out just 2-3 weeks more until the nights here in Chicagoland get a wee warmer and I can turn off the system until next fall.



The pump is a Taco 007-F5, so I'm sure the cartridge is going so I could swap that out, maybe upgrade to a better pump (I've read Taco, Grundfos, and B&G are the more popular makers).  Anyone recommend a different pump? Here's my system details:



Boiler: Bryant Legacy BW-2

Pump: Taco 007-F5

Aquastat: Honeywell L8148E



System is in the basement. I have 4 large rads on the main floor and 4 smaller rads upstairs. Total heating area: 1500 square feet.



Thanks for reading.

Sweet_Lew

Update

Probably going to change out the pump sooner than later. Looking into Grundfos (their new Alpha looks pretty slick) and Wilo pumps.

Steamhead

Especially if this is a converted gravity system

you'll want to measure the square feet of radiation (EDR) rather than the square feet of floor area. Then go here for sizing info:



http://www.heatinghelp.com/article/11/Hot-Tech-Tips/238/Sizing-Circulators-for-Hot-Water-Heating-Systems