Corflex Modular calorifier Performance Heat-up times by model according to total installed electrical power Models Electrical power (Estimated heat-up time for storage at 60°C and cold water at 10°C) Steatite heating elements Sheathed heating elements 4.8 kW 9 kW 12 kW 18 kW 24 kW 5 kW 10 kW 15 kW 25 kW 30 kW 20 kW 35 kW 40 kW 45 kW 50 kW 500 6 hrs 15 mins 6 hrs 750 5 hrs 4 hrs 30 mins 900 6 hrs 5 hrs 30 mins 3 hrs 30 mins 1000 6 hrs 30 mins 5 hrs* 6 hrs 4 hrs 1 500 7 hrs 30 mins 5 hrs 3 hrs 30 mins 8 hrs 30 mins 6 hrs 3 hrs 30 mins 4 hrs 30 mins 2 000 6 hrs 30 mins 5 hrs 8 hrs 4 hrs 45 mins 4 hrs 6 hrs 3 hrs 30 mins 2 500 8 hrs 15 mins 6 hrs 15 mins 6 hrs 5 hrs 7 hrs 30 mins 4 hrs 45 mins 3 hrs 45 mins 3 hrs 15 mins 3 000 7 hrs 30 mins 7 hrs 15 mins 6 hrs 6 hrs 4 hrs 30 mins 4 hrs 3 hrs 30 mins 4000 8 hrs 7 hrs 15 mins 6 hrs 5 hrs 30 mins 4 hrs 30 mins 5000 7 hrs 30 mins 6 hrs 30 mins 6 hrs *Only available for the 1000 TB model. Compatible Recommended pairings. Incompatibility. at least two heating elements Heat-up time with one or more heating elements (at least two from 35 kW). See available heating element kits. Volume heated* (L) by model depending on the position of the heating elements Models 500 750 900 1000 1000 TB 1500 1500 TB 2000 2500 2500 TB 3000 3000 TB 4000 5000 Angled sheathed heating elements from 5 to 25 kW High Flange 190 245 245 245 441 441 755 797 833 1,148 875 1,288 1,350 1,350 Inter Flange 320 397 489 524 567 868 755 1,280 1,497 1,148 1,836 1,704 2,467 2,967 Manhole - 557 692 810 728 1,134 1,041 1,566 2,001 1,708 2,514 2,090 3,090 4,089 Low Flange 484 716 851 970 889 1,295 1,292 1,817 2,252 2,069 2,765 2,452 3,585 4,584 Straight sheathed heating elements from 30 kW High Flange 141 168 168 168 317 317 562 604 640 869 682 1,010 969 969 Inter Flange 271 320 412 446 444 744 562 1,087 1,304 869 1,642 1,426 2,087 2,586 Manhole - 480 615 733 604 1,010 848 1,373 1,808 1,429 2,321 1,812 2,710 3,709 Low 435 639 774 892 765 1,171 1,099 1,624 2,059 1,791 2,572 2,174 3,204 4,203 Straight steatite heating elements from 4.8 to 24 kW Low 445 635 770 888 759 1,165 1,089 1,615 2,049 1,777 2,635 2,264 3,328 4,327 * Volume of water actually available above the lowest point of the heating element. 70
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