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steam oil to gas conversion

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Paul_69
Paul_69 Member Posts: 251
in Oil Heating
how much will you save converting a modern oil steam boiler to a gas steam boiler approx. oil in mass is double the cost of gas. thx

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  • Jamie Hall
    Jamie Hall Member Posts: 23,286
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    If it's really a modern oil boiler

    the efficiency is pretty good already; you may have slightly better efficiency on gas, but your savings will come from the difference in the price of the fuel, not from replacing the boiler.  Which is considerable.



    Some boilers can be converted from oil fired to gas fired (not all); you might look into that first.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • BobC
    BobC Member Posts: 5,478
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    How is it sized?

    If the current steam setup is well matched to the heating load (EDR) the savings will be the difference in fuel costs, last year oil was running about $3.50 and NG in the Boston area was about $2.20 for the equivalent amount of gas (1.4 therms). We won't know what the cost is till the gas company posts this years winter rates that take effect at the end of October.



    If that steam boiler is oversized you can dial the output down to match the load by drilling the correct orifice size for the input BTU you need and that can save some fuel.



    Bob
    Smith G8-3 with EZ Gas @ 90,000 BTU, Single pipe steam
    Vaporstat with a 12oz cut-out and 4oz cut-in
    3PSI gauge
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