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Weil-McLain install

MikeLa
MikeLa Member Posts: 2
in THE MAIN WALL
I am installing a Weil-Mc CGS-3 boiler in my 800 sq ft cabin in NW Wisconsin (no listed pros with-in 100miles). I will have 3 stats with Erie zone valves going to 3 small baseboard zones. I have different opinions about where to locate the Spirovent, expansion tank and Taco pump. Weil says pump can go on either return or supply. Two local installers say pump on supply and 1 says return. Spirovent says 1st choice is vent with tank attached, then pump on supply with 2nd choice being tank before pump on return and vent on supply, but tank always before pump. Amtrol says ask 100 installers and there will be a 60/40split or 40/60 split. He was sure a load of help. It is 12 degrees this morning and I would sure like to burn some LP instead of firewood.
This is a great site with excellent info. I wish I found this 3 weeks ago. Thanks to all the pros who take the time to respond.

Comments

  • MikeLa
    MikeLa Member Posts: 2
    Pump location

    After doing a more detailed search here, I see that this subject has been debated before. However, I think I have answered my own question by reading previous topics and posts. From boiler supply to Spirovent with Filtrol tank below, then to Taco 007 (motor horizontal) with minimum 10" from nearest 90 on inlet side.
    I didn't mean to ask already discussed topics. I am new to this site. Just like IBOATS.com and Woodmagazine.com I will continue to read and learn. Building new home soon.
    Thanks to all for their input and time.
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