The structure of a house is such that it loses heat at a rate of $5200$ $kJ/h$ per $^{\circ}C$ difference between the indoors and outdoors. A heat pump that requires a power input of $6.2$ $kW$ is used to maintain this house at $19 ^{\circ}C$. Determine the lowest outdoor temperature for which the heat pump can meet the heating requirements of this house, COP of the heat pump and the house's heat loss.

$T_C=$ $K$

$CoP=$

$Heat$ $Loss=$ $kW$

# Pay attention to the unit of each parameter