A house looses heat at a rate of $150$ $\mathrm{MJ}$ per hour. The temperature outside the house is $-3{ }^{\circ} \mathrm{C}$. The minimum power (in $\mathrm{kW}$) required to maintain the temperature inside the house at $25^{\circ} \mathrm{C}$ using a heat pump is $\_\_\_\_$ (rounded off to two decimal places).
