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WarmWire Spools


WarmWire® is a simple, economical way to warm floors and provide years of lasting comfort. Warm all kinds of floor coverings: ceramic tile, stone, wood, laminates, vinyl or carpet.

WarmWire can be used to warm areas as small as a powder room or as large as 240 sq. ft. Even larger areas can be warmed with multiple cables wired in parallel.

Features & Specs
  • Power leads and heating elements are fully grounded from end to end.
  • Heating elements are manufactured with a braided twin-wire design and shielded to reduce electromagnetic fields (EMF) to ultra-low levels.
  • Protected with blue urethane outer jacket.
Consider The Benefits...
  • WarmWire is easy to install and can fit rooms of all shapes and sizes.
  • New waterproof outer jacket allows for use in showers.
  • The industry's first single power lead construction makes WarmWire easy to install and simpler to connect to the control.
  • The industry's highest-quality heating wire using ETFE high-temperature insulation, PEX jacket, and oxygen-free copper alloys for corrosion resistance, temperature resistance, abrasion resistance, and longevity.
  • The industry's first twin-wire construction means ultra-low EMF.
  • 120-VAC and 240-VAC models available for small residential to large commercial applications.
  • The industry's first shielded and fully grounded 10-ft. power lead provides safety and jobsite durability (longer lengths available on request). Power leads are color-coded for 120 VAC or 240 VAC.
120 VAC240 VAC
Model Number Total Sq. ft. 2.5" Spacing 14.4 watts/ft2
Total Sq. ft. 3" Spacing 12 watts/ft2 Total Sq. ft. 3.5" Spacing 10.3 watts/ft2 Wire Length (ft.) Amp Draw Resistance (ohms)
120010
8
10 12 39 1.0 108 - 134
120015 13 15 18 59 1.5 72 - 89
120020
17 20 24 78 2.0 53 - 66
120025 21 25 30 98 2.5 42 - 52
120030 25 30 36 117 3.0 33 - 42
120035 29 35 42 137 3.5 29 - 37
120040 34 40 48 157 4.0 25 - 32
120045 38 45 54 176 4.5 22 - 28
120050 42 50 60 196 5.0 20 - 26
120060 51 60 72 235 6.0 16 - 21
120070 59 70 84 274
7.0 14 - 19
120080 67 80 96 313 8.0 12 - 16
Model Number Total Sq. ft. 2.5" Spacing 14.4 watts/ft2
Total Sq. ft. 3" Spacing 12 watts/ft2 Total Sq. ft. 3.5" Spacing 10.3 watts/ft2 Wire Length (ft.) Amp Draw Resistance (ohms)
240020
17
20
24
78
1.0
217 - 267
240030
25
30
36 117
1.5 143 - 176
240040 34
40
48
157 2.0
107 - 132
240050 42
50
60 196 2.5 84 - 104
240060 51
60
72 235 3.0 67 - 83
240070 59 70 84
274
3.5 59 - 73
240080 67 80 96
313
4.0 50 - 63
240090 76 90
108
352 4.5 45 - 56
240100 84 100
120 391 5.0 40 - 50
240120 101
120 144
470
6.0 33 - 42
240140 118 140
168 548
7.0 29 - 37
240160 135 160
192 626
8.0 24 - 31
240180 151 180 216 704 9.0 22 - 28
240200 168 200 240 783 10.0 20 - 26

For more information, view:

warmwire
pdfWatts HeatWeave Brochure
pdfWatts WarmWire Manual

Contact us for product selection. We are glad to help.

Image Model Name Price Add to Cart
warmwire.jpg 120040WDHW WarmWire Spool 188 feet, 40 sqft @ 2.5 in oc, 4.0 A @ 120VAC Price: $257.10
 
warmwire.jpg 240080WDHW WarmWire Spool 376 feet, 80 sqft @ 2.5 in oc, 4.0 A @ 240VAC Price: $383.56
 
warmwire.jpg 120020WDHW WarmWire Spool 94 feet, 20 sqft @ 2.5 in oc, 2 A @ 120VAC Price: $163.48
 
warmwire_spool.png 120010WD-BPHW Watts Radiant WarmWire, 120V, 10 Sq.Ft. at 3.0 in.OC Price: $101.93
 
warmwire_spool.png 120100WD-BPHW Watts Radiant WarmWire, 120V, 100 Sq.Ft. at 3.0 in.OC Price: $443.29
 
warmwire_spool.png 120015WD-BPHW Watts Radiant WarmWire, 120V, 15 Sq.Ft. at 3.0 in.OC Price: $134.00
 
warmwire_spool.png 120020WD-BPHW Watts Radiant WarmWire, 120V, 20 Sq.Ft. at 3.0 in.OC Price: $166.77
 
warmwire_spool.png 120025WD-BPHW Watts Radiant WarmWire, 120V, 25 Sq.Ft. at 3.0 in.OC Price: $193.18
 
warmwire_spool.png 120030WD-BPHW Watts Radiant WarmWire, 120V, 30 Sq.Ft. at 3.0 in.OC Price: $208.13
 
warmwire_spool.png 120035WD-BPHW Watts Radiant WarmWire, 120V, 35 Sq.Ft. at 3.0 in.OC Price: $241.59
 
warmwire_spool.png 120040WD-BPHW Watts Radiant WarmWire, 120V, 40 Sq.Ft. at 3.0 in.OC Price: $262.27
 
warmwire_spool.png 120045WD-BPHW Watts Radiant WarmWire, 120V, 45 Sq.Ft. at 3.0 in.OC Price: $277.92
 
warmwire_spool.png 120050WD-BPHW Watts Radiant WarmWire, 120V, 50 Sq.Ft. at 3.0 in.OC Price: $298.60
 
warmwire_spool.png 120060WD-BPHW Watts Radiant WarmWire, 120V, 60 Sq.Ft. at 3.0 in.OC Price: $337.10
 
warmwire_spool.png 120070WD-BPHW Watts Radiant WarmWire, 120V, 70 Sq.Ft. at 3.0 in.OC Price: $369.17
 
warmwire_spool.png 120080WD-BPHW Watts Radiant WarmWire, 120V, 80 Sq.Ft. at 3.0 in.OC Price: $391.24
 
warmwire_spool.png 120090WD-BPHW Watts Radiant WarmWire, 120V, 90 Sq.Ft. at 3.0 in.OC Price: $422.61
 
warmwire_spool.png 240100WD-BPHW Watts Radiant WarmWire, 240V, 100 Sq.Ft. at 3.0 in.OC Price: $443.29
 
warmwire_spool.png 240120WD-BPHW Watts Radiant WarmWire, 240V, 120 Sq.Ft. at 3.0 in.OC Price: $491.71
 
warmwire_spool.png 240140WD-BPHW Watts Radiant WarmWire, 240V, 140 Sq.Ft. at 3.0 in.OC Price: $556.61
 
warmwire_spool.png 240160WD-BPHW Watts Radiant WarmWire, 240V, 160 Sq.Ft. at 3.0 in.OC Price: $644.92
 
warmwire_spool.png 240180WD-BPHW Watts Radiant WarmWire, 240V, 180 Sq.Ft. at 3.0 in.OC Price: $683.42
 
warmwire_spool.png 240020WD-BPHW Watts Radiant WarmWire, 240V, 20 Sq.Ft. at 3.0 in.OC Price: $166.77
 
warmwire_spool.png 240200WD-BPHW Watts Radiant WarmWire, 240V, 200 Sq.Ft. at 3.0 in.OC Price: $742.60
 
warmwire_spool.png 240030WD-BPHW Watts Radiant WarmWire, 240V, 30 Sq.Ft. at 3.0 in.OC Price: $208.13
 
warmwire_spool.png 240040WD-BPHW Watts Radiant WarmWire, 240V, 40 Sq.Ft. at 3.0 in.OC Price: $262.27
 
warmwire_spool.png 240050WD-BPHW Watts Radiant WarmWire, 240V, 50 Sq.Ft. at 3.0 in.OC Price: $298.60
 
warmwire_spool.png 240060WD-BPHW Watts Radiant WarmWire, 240V, 60 Sq.Ft. at 3.0 in.OC Price: $337.10
 
warmwire_spool.png 240070WD-BPHW Watts Radiant WarmWire, 240V, 70 Sq.Ft. at 3.0 in.OC Price: $369.17
 
warmwire_spool.png 240080WD-BPHW Watts Radiant WarmWire, 240V, 80 Sq.Ft. at 3.0 in.OC Price: $391.24
 
warmwire_spool.png 240090WD-BPHW Watts Radiant WarmWire, 240V, 90 Sq.Ft. at 3.0 in.OC Price: $422.61