11.   Unfortunately the western part of the heating system had been destroyed.

12.   When you spot a leak on the heating system, first switch off the boiler.

13.   With the fish, the Archdeacon started on Cathedral heating systems he had known with special reference to the antipodes.

14.   The heating system needs to be flushed out once a year.

15.   High electricity bills point to a poor heating system or bad insulation.

16.   The heating system knows to make the temperature toasty on a cold morning before a guest is out of bed.

17.   We installed a zonal heating system in the house.

18.   A new thermofluid indirect heating system, already in use at some other locations, has also been installed.

19.   You can get advice on how to make the most of our heating system.