An office heater puts out 2070 btus (british thermal units) of energy in the form of heat per hour. given that 1 btu = 1.055 kj, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous operation)?

First, we calculate the kilojoules of energy per hour:
Energy per hour = 2070 x 1.055
Energy per hour = 2183.85 kJ / hr = 2.18385 MJ / hr

Hours in a year = 365 days per year x 24 hours per day
Hours in a year = 8760 hours

Energy output per year = 2.18385 x 8760
Energy output per year = 19,130 MJ per year

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