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WarmWire Spools

Watts WarmWire Electric in Floor Heating Spools for 120VAC & 240VAC Installations | Pexheat.com

WarmWire is now built with a tough, water-proof jacket. It costs less than HeatWeave Mat and installs differently. Secure the cable straps to the subfloor and stretch the wire between them. Cover with thin-set or self-leveling mortar and finish with almost any floor covering.

Watts Radiant WarmWire installation in shower

WarmWire is easily sized for any project:

  • Evaluate how many square feet of floor are to be heated. Do not put under cabinets or appliances. Generally, about 85–90% of the open areas should be heated. Leave the wire at east 4” away from the toilet wax ring and 4”–6” away from your walls. To keep toes warm, install right up to the toe-kick in front of kitchen or bath cabinets, and in front of a toilet, shower, or tub.
  • Choose a “spacing factor” of 2”, 2.5”, or 3” on center.
    Below are guidelines for application and spacing recommendations.

    • 2” on center = 15 Watts/sq. ft.
      Use on concrete basement slabs, sunrooms, and in other high heat loss areas.
    • 2.5” on center = 12 Watts/sq. ft.
      Use in bathrooms, kitchens, dining/living areas, etc.
    • 3” on center = 10 Watts/sq. ft.
      Use in hallways, entries, low heat loss areas, etc.

    2.5” on center is the most commonly used spacing. This spacing equals the heat output of HeatWeave mats.

WarmWire is the best.
• Twin-wire technology
• Durable
• Flexible
• Single power lead
WarmWire cable is very
similar to HeatWeave except
for the outer jacket.

• Oxygen-free heating elements
• Aramid reinforcing fibers
• ETFE insulation
• Stainless Steel jacket
Watts Radiant WarmWire 120VAC Specification Table

Watts Radiant WarmWire 240VAC Specification Table

For more information, view:

warmwire
pdfWatts HeatWeave Brochure
pdfWatts HeatWeave Catalog
pdfWatts WarmWire Manual

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

Image Model Name Price Add to Cart
warmwire.jpg 120025WDHW WarmWire Spool 118 feet, 25 sqft @ 2.5 in oc, 2.5 A @ 120VAC Price: $180.25
 
warmwire.jpg 120030WDHW WarmWire Spool 141 feet, 30 sqft @ 2.5 in oc, 3.0 A @ 120VAC Price: $194.22
 
warmwire.jpg 240030WDHW WarmWire Spool 141 feet, 30 sqft @ 2.5 in oc, 3.0 A @ 240VAC Price: $194.22
 
warmwire.jpg 120035WDHW WarmWire Spool 165 feet, 35 sqft @ 2.5 in oc, 3.5 A @ 120VAC Price: $224.97
 
warmwire.jpg 120040WDHW WarmWire Spool 188 feet, 40 sqft @ 2.5 in oc, 4.0 A @ 120VAC Price: $244.53
 
warmwire.jpg 240040WDHW WarmWire Spool 188 feet, 40 sqft @ 2.5 in oc, 4.0 A @ 240VAC Price: $244.53
 
warmwire.jpg 120045WDHW WarmWire Spool 212 feet, 45 sqft @ 2.5 in oc, 4.5 A @ 120VAC Price: $259.20
 
warmwire.jpg 120050WDHW WarmWire Spool 235 feet, 50 sqft @ 2.5 in oc, 5.0 A @ 120VAC Price: $278.76
 
warmwire.jpg 240050WDHW WarmWire Spool 235 feet, 50 sqft @ 2.5 in oc, 5.0 A @ 240VAC Price: $278.76
 
warmwire.jpg 120060WDHW WarmWire Spool 282 feet, 60 sqft @ 2.5 in oc, 6.0 A @ 120VAC Price: $314.39
 
warmwire.jpg 240060WDHW WarmWire Spool 282 feet, 60 sqft @ 2.5 in oc, 6.0 A @ 240VAC Price: $314.39
 
warmwire.jpg 120070WDHW WarmWire Spool 329 feet, 70 sqft @ 2.5 in oc, 7.0 A @ 120VAC Price: $344.43
 
warmwire.jpg 240070WDHW WarmWire Spool 329 feet, 70 sqft @ 2.5 in oc, 7.0 A @ 240VAC Price: $344.43
 
warmwire.jpg 240080WDHW WarmWire Spool 376 feet, 80 sqft @ 2.5 in oc, 4.0 A @ 240VAC Price: $364.70
 
warmwire.jpg 120080WDHW WarmWire Spool 376 feet, 80 sqft @ 2.5 in oc, 8.0 A @ 120VAC Price: $364.70
 
warmwire.jpg 240090WDHW WarmWire Spool 423 feet, 90 sqft @ 2.5 in oc, 4.5 A @ 240VAC Price: $394.04
 
warmwire.jpg 120090WDHW WarmWire Spool 423 feet, 90 sqft @ 2.5 in oc, 9.0 A @ 120VAC Price: $394.04
 
warmwire.jpg 120010WDHW WarmWire Spool 47 feet, 10 sqft @ 2.5 in oc, 1 A @ 120VAC Price: $95.02
 
warmwire.jpg 120100WDHW WarmWire Spool 470 feet, 100 sqft @ 2.5 in oc, 10.0 A @ 120VAC Price: $413.60
 
warmwire.jpg 240100WDHW WarmWire Spool 470 feet, 100 sqft @ 2.5 in oc, 5.0 A @ 240VAC Price: $413.60
 
warmwire.jpg 240120WDHW WarmWire Spool 564 feet, 120 sqft @ 2.5 in oc, 6.0 A @ 240VAC Price: $459.01
 
warmwire.jpg 240140WDHW WarmWire Spool 658 feet, 140 sqft @ 2.5 in oc, 7.0 A @ 240VAC Price: $519.10
 
warmwire.jpg 120015WDHW WarmWire Spool 71 feet, 15 sqft @ 2.5 in oc, 1.5 A @ 120VAC Price: $125.06
 
warmwire.jpg 240160WDHW WarmWire Spool 752 feet, 160 sqft @ 2.5 in oc, 8.0 A @ 240VAC Price: $601.54
 
warmwire.jpg 240180WDHW WarmWire Spool 846 feet, 180 sqft @ 2.5 in oc, 9.0 A @ 240VAC Price: $637.87
 
warmwire.jpg 120020WDHW WarmWire Spool 94 feet, 20 sqft @ 2.5 in oc, 2 A @ 120VAC Price: $155.10
 
warmwire.jpg 240020WDHW WarmWire Spool 94 feet, 20 sqft @ 2.5 in oc, 2.0 A @ 240VAC Price: $155.10
 
warmwire.jpg 240200WDHW WarmWire Spool 940 feet, 200 sqft @ 2.5 in oc, 10.0 A @ 240VAC Price: $693.06