Need a Taco Circulator Pump education

Lowmiler

Currently have a failed 007-BF5 circulation pump for our hydronic heated floor.

All I can find is a 007-BF5-J part number, and I think that is the same thing, just contractor packaging?

If I wanted to upgrade to the more efficient "e" version Taco now makes, what model would I be looking at?

I am not sure the difference in application between the Bronze version I have now and a Cast Iron version.

Stainless is not worth the price difference, considering how long it would take to amortize the electrical cost savings.

Thanks,

Todd

Mad Dog_2

Call Taco Tech Support...The Horse's Mouth...Mad Dog 🐕

Alan (California Radiant) Forbes

Do you have a zoned system, i.e. more than one thermostat ? If so, do you have pumps or zone valves?

You may have one pump and a few zones valves or you may have all pumps.

Radiant heating? Radiators? Baseboard?

EdTheHeaterMan

radiant floor tubing may not have oxygen barrier in your case. You must use a stainless steel or bronze pump. I learned that the hard way many years ago.

If you radian floor tubing does have oxygen barrier, then the lower cost cast iron pump will do fine.

Can you describe the radiant floor tubing that you currently have? The namebrand is sometimes printed on the tubing.

Lowmiler

I'm unable to access the tubing to see.

Talking with Taco Tech Line, the J designation is a mixed Bronze and Cast assembly, vs what I currently have which is 100% Bronze.

Current "e" line does not have a Bronze option, either fully Cast or fully Stainless.

I just found and ordered a NOS 007-SF5, which matches my BF5 dimensionally, and removes any potential oxidation issues. Cost was about half of a new 007e version.

Thanks for all the insight.

SteveSan

You are correct Todd. The 007-BF5-J is a cast iron casing that uses the cartridge we use for our Bronze & SS pumps. Most commonly used for out-door wood boiler applications.

We went to a SS casing a few years ago so the 007-SF5 is what you want to order, or if you wanted the ECM SS version, you would order a 007e-SF4 Universal flange or 007e-SU union.

If you have any questions, please give Taco Technical Services a call during normal business hours Mon-Fri 8am-5pm EST 401-942-8000 and just ask for Technical Services.

EdTheHeaterMan

Obviously the tubing in the floor may not be accessible, be it concrete, or staple up behind lots of insulation. But the tubing does surface for a short distance near the service manifold in most cases if you’re lucky. See if there are any markings at that location. Also some tubing manufacturers offer name brand manifolds and those manifolds can offer a clue to the tubing brand.

When I learned the hard way, The tubing was made by a company called "InFloor" that manufactured a manifold assembly that you built yourself on the job by adding the number of purge valve assemblies to match the number of loops. and the tubing was a gray, non barrier product. After replacing the SS boiler with a CI boiler, I had to redesign the whole thing two years later to separate the CI from the tubing with a SS heat exchanger. What a mess.