Gap between each vertical tube 14mm.
Pipe centres 55mm from wall.
(H 410mm x 236mm 6 sections = btu 706)
(H 410mm x 392mm 10 sections = btu 1177)
(H 410mm x 587mm 15 sections = btu 1765)
(H 410mm x 782mm 20 sections = btu 2354)
(H 410mm x 977mm 25 sections = btu 2943)
(H 410mm x 1172mm 30 sections = btu 3354)
(H 610mm x 236mm 6 sections = btu 989)
(H 610mm x 392mm 10 sections = btu 1648)
(H 610mm x 587mm 15 sections = btu 2471)
(H 610mm x 782mm 20 sections = btu 3296)
(H 610mm x 977mm 25 sections = btu 4120)
(H 610mm x 1172mm 30 sections = btu 4944)
(H 810mm x W236mm 6 sections = btu 1262)
(H 810mm x W392mm 10 sections = btu 2105)
(H 810mm x W587mm 15 sections = btu 3157)
(H 810mm x W782mm 20 sections = btu 4210)
(H 810mm x W977mm 25 sections = btu 5263)
(H 810mm x W1172mm 30 sections = btu 6315)
(H 1010mm x W236mm 6 sections = btu 1539)
(H 1010mm x W314mm 8 sections = btu 2051)
(H 1010mm x W392mm 10 sections = btu 2562)
(H 1010mm x W587mm 15 sections = btu 3843)
(H 1010mm x W782mm 20 sections = btu 5124)
(H 1010mm x W977mm 25 sections = btu 6406)
(H 1210mm x W236mm 6 sections = btu 1808)
(H 1210mm x W314mm 8 sections = btu 2412)
(H 1210mm x W392mm 10 sections = btu 3016)
(H 1210mm x W587mm 15 sections = btu 4524)
(H 1210mm x W782mm 20 sections = btu 6032)
(H 1210mm x W977mm 25 sections = btu 7540)
(H 1510mm x W236mm 6 sections = btu 2225)
(H 1510mm x W314mm 8 sections = btu 2968)
(H 1510mm x W392mm 10 sections = btu 3708)
(H 1510mm x W587mm 15 sections = btu 5563)
(H 1510mm x W782mm 20 sections = btu 7418)
(H 1510mm x W977mm 25 sections = btu 9272)
(H 1810mm x W236mm 6 sections = btu 2648)
(H 1810mm x W314mm 8 sections = btu 3528)
(H 1810mm x W392mm 10 sections = btu 4411)
(H 1810mm x W470mm 12 sections = btu 5295)
(H 1810mm x W587mm 15 sections = btu 6617)
(H 1810mm x W782mm 20 sections = btu 8823)
(H 2010mm x W236mm 6 sections = btu 2935)
(H 2010mm x W314mm 8 sections = btu 3914)
(H 2010mm x W392mm 10 sections = btu 4893)
(H 2010mm x W470mm 12 sections = btu 5872)
(H 2010mm x W587mm 15 sections = btu 7339)
(H 2010mm x W782mm 20 sections = btu 9785)