Wed Jun 21, 2017 9:30 am
#1542184
My study/office accidentally has quite a heat resistant design .... it has a high vaulted ceiling (to allow future mezzanine storage) with a velux window, and a 4ft x 2ft chimney breast running through it - which is solid concrete, except for the inner flue .... plenty of thermal mass from the chimney, and you can feel the thermal draw through the velux