Week Eleven Week Eleven Click on any photograph to view the album in carousel format. Richard, Judy & Florence inspect the bell tower with the aim of finding the best solution to close it off. We have lift off!! Jim and Simon: The heating is turned on! Water temperature rises as the system gets going. The water has reached 41C and the outside temperature is 7C. Refrigeration unit for the air source heat pump Now we just need a floor…… Remote filler for the oil tank Air source heat pump Oil tank Air source heat pump Remote filler for the oil tank Refrigeration unit for the air source heat pump. The addition of a door and curtains will help keep the heat in the Nave and out of the Bell Tower.