<human>:  What is the most eco-friendly way to heat my house?
<bot>: The most eco-friendly way to heat your house is to install a geothermal heat pump. Geothermal heat pumps use the energy from the ground to heat and cool your home, eliminating the need for burning fossil fuels. Additionally, geothermal heat pumps are highly efficient, providing you with significant cost savings on your energy bills.