19. Where the claimant occupies a dwelling as his home which is also occupied by a person other than one to whom paragraph 18 refers or one who is provided with board and lodging accommodation and that person is contractually liable to make payments in respect of his occupation of the dwelling to the claimant—
(a)£4 of any payment made by that person; and
(b)a further £8.60, where that payment is inclusive of an amount for heating.