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MAXKOSKO Electric Heated Floor Cable Kit, Professional Underfloor Heating System with Alarm Monitor

$66.99 USD
$66.99 USD $53.99 USD
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3 in stock

Size: 10 sq.ft.

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  • Delivery: 7-11/5-8 working days.
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  • Customization available: Bulk orders & size customization accepted.
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Electric Floor Heating Cable for Custom Layouts

MAXKOSKO Electric Floor Heating Cable provides comfortable radiant floor heat beneath compatible finished flooring. Its flexible loose-cable design is especially suitable for bathrooms, kitchens, entryways, and irregularly shaped areas where a pre-sized heating mat may be difficult to fit.

The constant-wattage cable produces approximately 3.7 watts per linear foot and can be installed with a compatible uncoupling membrane or approved cable guide. Select the correct cable size before ordering because the heating cable cannot be cut, shortened, crossed, or spliced.

Flexible Room Layout

Loose-cable installation makes it easier to heat around corners, angled walls, and permanent floor obstacles.

3.7W per Linear Foot

Constant-wattage output provides even radiant warmth when the cable is installed at the approved spacing.

Membrane Compatible

Works with compatible floor heating membranes and approved cable guides for organized, consistent cable spacing.

Multiple Coverage Options

Available in multiple cable lengths for small bathrooms, kitchens, entryways, and larger heated floor areas.

10 ft Cold Lead

The non-heating power lead provides routing flexibility between the heated floor area and thermostat connection box.

Indoor Underfloor Heating

Designed for permanent installation beneath approved flooring in dry or properly waterproofed indoor areas.

Important Before Ordering

Plan the Heated Area Before Selecting a Size

Measure Net Heated Area Only: Exclude toilets, vanities, cabinets, tubs, appliances, permanent fixtures, and other areas where the cable will not be installed.

Choose a Cable No Larger Than the Heated Area: Select a cable that fits within the usable floor area. Excess heating cable cannot be cut off or shortened.

Never Cut the Heating Cable: The blue heating section is a fixed-resistance cable and must not be cut, shortened, crossed, overlapped, or spliced.

Coverage Depends on Spacing: The advertised heating coverage is based on the specified installation spacing. Standard membrane installation typically uses approximately 3.6-inch spacing, or three compatible membrane slots.

Thermostat Required: The system must be controlled by a compatible electric floor heating thermostat and floor temperature sensor.

Confirm Voltage: Select the correct 120V or 240V version for the available electrical circuit. Cable voltage must match the supply voltage.

Electrical Protection Required: The circuit must include code-compliant grounding and ground-fault protection. Final electrical connection should be completed by a qualified electrician.

Floor Heating Cable or Heating Mat?

Choose Loose Heating Cable

Best for irregular rooms, curved areas, narrow spaces, and layouts requiring adjustable cable routing.

Choose a Heating Mat

Best for open rectangular areas where a pre-spaced mesh mat can be unrolled and installed more quickly.

Prefer a pre-spaced system with optional smart thermostat control? View the MAXKOSKO Electric Heated Floor Mat Kit.

Specifications

Product Type Loose Electric Floor Heating Cable
Cable Construction Twin-Conductor Constant-Wattage Heating Cable
Available Voltage 120V or 240V, Depending on Selected Variant
Heat Output Approximately 3.7W per Linear Foot
Cable Diameter Approximately 4.5 mm
Cold Lead 10 ft, 2-Wire 16 AWG Plus Ground
Typical Installation Methods Compatible Uncoupling Membrane or Approved Cable Guide
Standard Membrane Spacing Approximately 3.6 in / 3 Compatible Membrane Slots
Minimum Installation Temperature 40°F (5°C)
Primary Application Indoor Electric Radiant Floor Heating
Heating Cable Modification Heating Section Cannot Be Cut, Shortened, Crossed, or Spliced
Thermostat Required and Sold Separately Unless Specifically Included
How to Select the Right Cable Size View Guide Hide Guide

Select the cable according to the actual floor area that will receive heat, not the total room size.

1. Measure the Room

Calculate the total floor area inside the planned heating zone.

2. Exclude Fixed Objects

Subtract areas beneath toilets, cabinets, vanities, tubs, appliances, and permanent fixtures.

3. Confirm the Voltage

Determine whether the available floor heating circuit is 120V or 240V.

4. Confirm the Spacing

Choose the membrane or guide spacing before calculating the approximate cable coverage.

5. Select the Smaller Size

When the exact heated area falls between two cable sizes, select the smaller system rather than an oversized cable.

Do Not Order an Oversized Cable

The cable cannot be shortened to fit. Any unused cable must still be installed at an approved spacing within the heated floor area.

Do not reduce spacing excessively, overlap the cable, or install it beneath permanent fixtures to use excess length.

Basic Installation Requirements View Requirements Hide Requirements
  • Complete the floor layout before unrolling the heating cable.
  • Test and record cable resistance before, during, and after installation.
  • Install the floor sensor between two cable runs without touching the heating cable.
  • Maintain the approved cable spacing throughout the heated area.
  • Embed the entire heating cable in suitable mortar, thin-set, concrete, or another approved material.
  • Do not install the heating cable in walls, ceilings, cabinets, or across expansion joints.
  • Do not energize the system until the mortar and floor covering have fully cured.
  • Follow the complete product manual, flooring instructions, and local electrical codes.

Professional Electrical Connection Required

The thermostat, floor sensor, heating cable, grounding conductor, circuit protection, and power supply must be connected according to the applicable wiring diagram and local electrical requirements.

Frequently Asked Questions

Can the floor heating cable be cut to fit the room?

No. The heating section is manufactured to a fixed length and resistance. It must never be cut, shortened, crossed, overlapped, or spliced.

How do I choose the correct cable size?

Measure only the open floor area where the cable will actually be installed. Select a cable that is equal to or slightly smaller than this net heated area.

What installation spacing should I use?

Spacing depends on the selected membrane or cable guide. Standard membrane coverage is typically based on approximately 3.6-inch spacing, or three compatible membrane slots.

Can the cable be installed beneath cabinets or a toilet?

No. Do not install it beneath permanent fixtures or objects that prevent heat from dissipating, including toilets, vanities, cabinets, tubs, and fixed appliances.

What flooring can be installed over the cable?

Tile and stone are common applications. Other floor coverings may be compatible when approved by the flooring manufacturer and installed within the permitted temperature and thermal resistance limits.

Should the cable be tested during installation?

Yes. Cable resistance and insulation resistance should be measured and recorded before installation, during installation, and after the floor covering is completed.

Guides & Resources

Review the Installation Manual Before Ordering

Before selecting a cable size, confirm the net heated area, supply voltage, installation spacing, thermostat requirements, flooring type, and electrical circuit capacity.

For troubleshooting and heating performance guidance, read Why Is My Room Not Warm Even When the Floor Heating Is On?

MAXKOSKO electric floor heating cable for custom underfloor heating layouts Loose radiant floor heating cable installed beneath tile flooring Electric heated floor cable for bathroom and kitchen renovation Constant wattage electric underfloor heating cable specifications Floor warming cable for irregular rooms and custom heated areas Electric radiant heating cable installation beneath finished flooring Standard spacing guide for electric floor heating cable installation

Questions & Answers

Have a Question?

Ask a Question
  • Do you have wires at 240V?

    We would like to inform you that the model you asked about is only available in 120V.

  • Can I use a 3" spacing distance from walls and cabinets for this product or do I use the 3.6" spacing?

    You can use a 3‘’ spacing distance for the floor heating cable.
    Typically, a 3.6‘’ spacing is the standard interval, but using a 3‘’ spacing is also acceptable.

  • I am curious to know if I need to have a base membrane installed for this product or can I simply adhere the wire directly to the subfloor and then pour a self leveling compound over the wire and then instsall tile material over that?

    You can use a base membrane alongside the floor heating cable, or you can opt for a simpler approach using cable guide straps as accessories to temporarily secure the wire during installtion. 
    After securing the wire, you can proceed to pour a self-leveling compound over it and then install the tile material.

  • I'm interested in your 50sq ft heat cable system and want to know about 120V or 220V?

    it is compatible with 120V.

  • I have a Honeywell thermostat TH115-AF-GA/U, can it be use for 2 sections of 10sf rooms?

    The thermostat you need is designed specifically for floor heating and typically comes with a floor sensor. I believe the Honeywell thermostat should be suitable.

  • What types of thermostats work with this cable

    You'll need a thermostat specifically designed for floor heating. These thermostats typically come with a floor sensor to ensure precise temperature control.

    We also offer compatible thermostats for this product. For more details, click here [WiFi Smart Thermostat].