Radiant Panel Sizing

Share:


What size radiant panel goes into a room of a specific size?

See values below, but here are some ways to fine-tune results when sizing:

• For ceilings above 8 feet increase wattage by 25% for every additional 2 feet in height.

• If recommended wattage falls between two sizes, select the larger heater.


SIMPLIFIED SQUARE FOOTAGE COVERAGE FOR RADIANT PANELS IN SQ.FT
            Wt/Sq.ft      
Panel (Watts) BTU's 5 6 7 8 9 10      
250W LAVA 853 50 42 36 31 28 25 square foot coverage    
350W LAVA 1194 70 58 50 44 39 35
500W LAVA 1706 100 83 71 63 56 50    
600W EMBER 2047 120 100 86 75 67 60
750W LAVA 2559 150 125 107 94 83 75    
800W EMBER 2730 160 133 114 100 89 80
1000W LAVA 3412 200 167 143 125 111 100  

 

 

 

 

 

                      SIMPLIFIED HEAT DEMAND FOR RADIANT PANELS IN WATTS
                       Sq. feet                               Sq. feet                               Sq. feet                               Sq. feet                               Sq. feet                               Sq. feet                               Sq. feet                               
Room type Wt/ Sq.ft 15 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210
BASEMENT 5.11 77 102 153 204 255 307 358 409 460 511 562 613 664 715 766 818 869 920 971 1022 1073
WC 5.57 84 111 167 223 279 334 390 446 502 557 613 669 725 780 836 892 948 1003 1059    
HALL 5.88 88 118 177 235 294 353 412 471 530 588 647 706 765 824 883 941 1000 1059      
BEDROOM 6.19 93 124 186 248 310 372 434 495 557 619 681 743 805 867 929 991 1053        
KITCHEN 6.81 102 136 204 273 341 409 477 545 613 681 749 818 886 954 1022 1090          
HOBBY ROOM 7.12 107 142 214 285 356 427 499 570 641 712 783 855 926 997 1068            
NURSERY 7.12 107 142 214 285 356 427 499 570 641 712 783 855 926 997 1068            
DINING ROOM 7.43 111 149 223 297 372 446 520 595 669 743 818 892 966 1041              
WORKING SPACE 7.43 111 149 223 297 372 446 520 595 669 743 818 892 966 1041              
                                             
LIVING ROOM 8.00 120 160 240 320 400 480 560 640 720 800 880 960 1040                
AVERAGE "9" 9.00 135 180 270 360 450 540 630 720 810 900 990 1080                  
BATHROOM 10.37 156 207 311 415 519 622 726 830 934 1037                      
These numbers are estimates, actual results may vary due to different types of construction, insulation levels, ceiling height, etc.

 

 

Written by Scott Rosenbaum
Posted on

Speak to a radiant heating expert


Can’t find what you’re looking for? Create a Support Request