MHHP commented:
THE HETER OF THE MECHABER IN SEIF 2 APPLIES EVEN TO THE HOUSE ITSELF ACCORDING TO THE TAZ QUOTED BY THE BEUR HALACHAH IBID.
The Kollel replies:
Yes, indeed the Taz (#2) maintained that the Heter of the Sefer ha'Terumah applied to the house on fire.
Ilan