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Cost of heating a small cottage with Gas stove fireplace vs electric oil filled radiator

  • 18-11-2023 8:23pm
    #1
    nino1
    Registered Users, Registered Users 2 Posts: 829 ✭✭✭


    I have a small cottage that i currently heat with two 1500W oil filled plug in radiators.

    I am looking to compare the cost of heating it with a gas stove fireplace, Input 6KW.

    It is connected to propane cylinders and not mains gas supply.

    i pay €0.35 per KWH in electricity so I know that if I have heating on for 8 hours a day it will cost €8.50

    Can anyone help me compare that to gas stove costs?



Comments

  • #2
    Lenar3556
    Registered Users, Registered Users 2 Posts: 1,720 ✭✭✭Lenar3556


    As a guesstimate;

    The gas stove will likely run from 47KG propane cylinders that cost circa €120.00 each.

    Each KG of propane provides approx 14kW/h. So about €0.18c per KW/h.

    However the 6KW stove might realistically be only 80% efficient. So that €0.18c would be more like €0.22c per KW/h of delivered heat.

    Your €8.50 per day assumes that the oil filled radiator is running at 100% all the time. In reality they all have some form of thermostatic control and would be switching on and off. So the €8.50 is probably over stated.

    In summary the gas is at least 30% cheaper to run on a per KW of heat basis, but you have to factor the installation & maintenance costs, together with the hassle of changing cylinders.

    Looking purely at cost and without considering the aesthetics of a nice stove, there probably wouldn’t be a strong business case to be made for changing from the electric radiators you already have.



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