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adding two radiators to boiler

Uni R
Uni R Member Posts: 663
If you are adding these rads at the start of the system and you can calculate the rad size correcly, why not just use Monoflos for them? Be aware that they will be run at higher temps and that the first of the old rad will have two rads being fed first. Seems much easier to keep a simple system simple.


  • BOB_23
    BOB_23 Member Posts: 19
    Adding two radiators to boiler

    I want to add two small radiators to my heating system.

    I have a one zone system with three radiators on the first floor and four radiators on the second floor. All radiators are on one zone on a older system with monoflow tees. All radiators heat fine now.

    What I want to do is add two small radiators to the first floor.

    I want to come off the supply that is now 1 1/4" copper with a 3/4" line with a grundfos ups1558fc circulator with check valve and push to both radiators and then back into the main return line to the boiler.

    I was going to run my second circulator fron the aquastat at the same time my other circulator is running.

    Will this work?
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