Looking for guidance
I have a eight zone, eight section Weiler Mcclain oil burner with 1.2 gpm nozzel its around 285K btu with cast iron 10 large radiators.(large volume water in system 60 gal plus) boiler is already piped to accept add on boiler in series with return header.
Heating around 4,500 sf of 110 year poorly insulated old house.
I realize this isn't Ideal situation but what are the pitfalls?
Due to the price and avalibilty of coal boiler and my 3,000.00 dollar budget for this year!
I am looking at adding Harman mark 111 (92 k btu) with Two hot water coil to supplement my existing boiler.
This hand fired stove would be run at max for the 12 hours a day that I am not home.
My plan is to use a a safty and a temperature switch on the outlet of the hot water coils and add a circulator dedcated to coal boiler from the supply and back to the return header.
This way if no zone is not calling for heat I can use the boiler as a heat storage.
Should I add a storage tank instead of using the Boiler?
I have chart recorder with switch output so I can force on a zoneor more in case of high water temperature.
I can do all the work my self
Thanks for the comments