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I guesas i have two questions.We did a install of a 490,000
btu coal boiler for a guy who has a grocery store.We actualy came in in the middle of it after someone had started it and was doing a real hack job,we corrected what we could and are going from there.
What i need to know is would i gain anything by changing to
P/S pipeing on the manifolds?
And two they are useing H/X in the plenums of the hot air furnaces,Which seem to restrict the air flow and require
realy high water temps to make enough heat.I was thinking
maybe Radiant panels on the walls.Owner wants to try base board which i think is'nt a good idea because it will always be being hit.Could you infact mount Baseboard up higher on the wall,like you see some old rad's?
Here is the specifics,
Boiler-Royal 490,000 btu coal
Supply and return manifolds are 2" with 1"zone take offs
Circs on supply side-Wilo Star S16 FX on lowest speed.
1" Zurn Oxy Pex to H/X
4 zones,Average Delta T at each H/X is 10.5 Deg
Average Delta T at manifold for each zone is 20.6 Deg
Average across whole system is 35 deg between supply and return.
Everything was spec before we got there.