Home appliance with a power consumption output device said power consumption output device comprising: a power consumption information acquiring unit configured to acquire power consumption information indicating power consumption of a home appliance; an output unit configured to output the power consumption of the home appliance along with a reference value providing a standard based on the power consumption information for judging whether power consumption is appropriate, the power consumption of the home appliance being obtained based on the power consumption information acquired by the power consumption information acquiring unit, a reference value setting unit configured to set the reference value, wherein the output unit is configured to accumulate power consumption indicated in the power consumption information acquiring unit within a prescribed period prior to the present and output a cumulative power consumption along with the reference value, characterised in that the power consumption output device further comprises an ambient temperature detecting unit configured to detect ambient temperature pertaining to the outside of the power consumption output device, a reference value modifying unit configured to modify the reference value set by the reference value setting unit, wherein the reference value modifying unit is configured to modify the reference value set by the reference value setting unit based on the ambient temperature detected by the ambient temperature detecting unit, whereby the reference value modifying unit increases the reference value by a prescribed amount when the ambient temperature is higher than a prescribed value, and reduces the reference value by a prescribed amount when the ambient temperature is lower than a prescribed value. a power consumption information acquiring unit configured to acquire power consumption information indicating power consumption of a home appliance; an output unit configured to output the power consumption of the home appliance along with a reference value providing a standard based on the power consumption information for judging whether power consumption is appropriate, the power consumption of the home appliance being obtained based on the power consumption information acquired by the power consumption information acquiring unit, a reference value setting unit configured to set the reference value, wherein the output unit is configured to accumulate power consumption indicated in the power consumption information acquiring unit within a prescribed period prior to the present and output a cumulative power consumption along with the reference value, characterised in that the power consumption output device further comprises an ambient temperature detecting unit configured to detect ambient temperature pertaining to the outside of the power consumption output device, a reference value modifying unit configured to modify the reference value set by the reference value setting unit, wherein the reference value modifying unit is configured to modify the reference value set by the reference value setting unit based on the ambient temperature detected by the ambient temperature detecting unit, whereby the reference value modifying unit increases the reference value by a prescribed amount when the ambient temperature is higher than a prescribed value, and reduces the reference value by a prescribed amount when the ambient temperature is lower than a prescribed value.