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Long run from boiler to circulator

jnos Member Posts: 1
Current Situation: Oil boiler running a single loop. Located right at the bottom of basement stairs. 2nd half of loop does not adequately heat bedrooms.

I plan on switching to a NG fired wall mounted unit in the future, but for the moment I just want to fix the distribution system. I'll be changing distribution to a manifold system. In anticipation of the wall mount unit, I want to install the manifold 15-20 feet (horizontal) from the current boiler position. My question is, will I have any issues with a 15-20' run of pipe between the boiler and the expansion tank/circulator location.


  • Install the circulator, expansion tank, air eliminator, fill valve, etc. at the boiler and then install your manifold where you want it.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab