C changes Registered User Messages 120 24 Nov 2009 #1 Hi, My parents have a 30 year old oil boiler that they seem very proud is still operating. They changes the burner about 5 years ago. Does anyone know how efficient this boiler is likely to be. They go through quite a bit of oil.
Hi, My parents have a 30 year old oil boiler that they seem very proud is still operating. They changes the burner about 5 years ago. Does anyone know how efficient this boiler is likely to be. They go through quite a bit of oil.