BTU's or watts required to heat a 1930 semi detached lounge, bar windows, no double glazing, loft insulated
outside temp say zero, indoors say 18 to 20 C
Hi There room height length and width outside walls (include north facing) solid or boarded floor French doors Yes or no insulation All need to be taken into consideration.
Andy
October 2007
Room size, number of outside walls, what type of walls(i.e cavity wall with or without insulation ,solid wall how thick ) without right information you might as well just guess
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