Parents wanting new radiator for their bathroom. The B&Q brochure they have is listing each radiator by BTU.
Their room is 3.04 length x 1.6 width x 2.65 height (all measurements in metres). They have one external wall, with a standard sized double glazed window. House is 1930's bungalow with double skin brick walls internally and externally.
What BTU do they need for the radiator for the room? And what does the BTU actually mean?
From the calculator on the B&Q website, this gave a figure of 1,566 BTUs - is this the MINIMUM value of BTU their new radiayor should have? Ie they could get a radiator with a BTU of, say, 1,600 or 1,700 BTUs but not 1,300 or 1,400? IF so, what is the tolerance either side of the recommended BTU value - ie is it generally recommended for the new radiator to be e.g.+/-10% of the recommended BTU or should the new radiator BTU never be below the recommended level.
Their room is 3.04 length x 1.6 width x 2.65 height (all measurements in metres). They have one external wall, with a standard sized double glazed window. House is 1930's bungalow with double skin brick walls internally and externally.
What BTU do they need for the radiator for the room? And what does the BTU actually mean?
From the calculator on the B&Q website, this gave a figure of 1,566 BTUs - is this the MINIMUM value of BTU their new radiayor should have? Ie they could get a radiator with a BTU of, say, 1,600 or 1,700 BTUs but not 1,300 or 1,400? IF so, what is the tolerance either side of the recommended BTU value - ie is it generally recommended for the new radiator to be e.g.+/-10% of the recommended BTU or should the new radiator BTU never be below the recommended level.