Motivated by concern about climate change, the Clausens converted from heating with fuel oil to a geothermal heating system in 2016. This complements their decision to install additional solar photovoltaic units in 2017 (adding to a system installed by previous owners in 2012).
The threat of climate change was the strongest motivating factor for investing in a geothermal heat pump as well as rooftop solar photovoltaic electricity at this house in the Tipperary Hill section of the city. This case illustrates that geothermal energy is possible on a small lot in a tight space. The vertical wells were drilled in a small area on the front lawn and in the driveway.
This 1825 historic house was converted from a natural gas heating system (forced hot air and hot water) to geothermal heating and cooling (forced air and hot water) in 2018. With the goal of reducing household greenhouse gas emissions to the bare minimum, the occupant has also converted the gas stove to electric induction, and has replaced a hybrid car with an electric vehicle.