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Number of Chimneys?
Number of Open Flues?
Number of Extract Fans?
Number of Flueless Gas Fires?
Has a Pressurisation Test Been Carried Out? Yes no
Is there a Design Air Permeability? m3/hr/m2@50Pa
Natural Ventilation or Mechanical?
Double Glazed (Air) Double Glazed (Argon) Triple Glazed (Air) Triple Glazed (Argon)