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Don't Heat the Air—Heat the Surface: Smart Savings in the Master Bath.

How 23 sq. ft. of electric floor heating maximizes comfort while minimizing energy waste.

Lake Zurich, IL
Rosehall Bathroom Billen S Condo First Bathroom Mat Installation 4
Size: 37 sq.ft. Voltage: 120V Wattage: 337 W Amps: 3 A Flooring: Tile, Marble or Stone Cost/hr *: $0.05

The Morning Routine You’ve Been Avoiding

We’ve all been there: you step out of a warm shower only to have the heat sucked right out of your body by a freezing tile floor. In Lake Zurich, where Illinois winters can be unforgiving, stone and tile surfaces act like heat sinks, staying cold even when your home's central air is running. Most homeowners accept this "morning shock" as a seasonal reality. But why should your luxury master suite feel like an icebox?

This project focused on a complete transformation of the master bath layout. By removing the dated tub/shower combo and replacing it with a modern, spacious walk-in shower, the homeowners were able to reclaim the room's footprint. To complete the upgrade, we turned the 23-square-foot floor from a cold transition zone into the most comfortable surface in the home using electric floor heating. Now, the space doesn't just look like a spa—it feels like one, too.

Project Details


Upgrading Comfort in Lake Zurich

The owner of this Lake Zurich home faced a common dilemma: a beautiful master bathroom that felt uninviting for half the year. Because tile and stone are dense, natural thermal conductors, they lose heat rapidly. Even with the thermostat set to 72°F, the floor itself often remains significantly lower, creating a "chilly feet" sensation that makes getting ready in the morning a chore rather than a pleasure.

To solve this, a TempZone™ Flex Roll system was selected. This system is specifically designed to provide consistent, even heat across the entire floor. Unlike forced-air systems that blow dusty, dry air that quickly rises to the ceiling, radiant heating warms the objects and people in the room from the ground up.

The installation featured a 120V system covering 23 square feet of the most-trafficked areas. By embedding the heating cable directly beneath the tile, the floor becomes a gentle radiator. Controlled by the nSpire Touch programmable thermostat, the system is set to warm up just before the alarm goes off, ensuring a spa-like experience the moment feet hit the floor.


Featured Products

  • TempZone™ Flex Roll: The heart of the system. It solves the problem of "cold spots" by providing 15 watts per square foot of consistent, radiant warmth.
  • nSpire Touch Thermostat: Solves the problem of wasted energy. Its programmable interface allows you to heat the floor only when you need it, maximizing efficiency.
  • Circuit Check: A "peace of mind" tool used during installation to ensure the heating cable is not damaged while the tile is being laid.

* For about $0.05 per hour, you can maintain a perfectly warm floor. If run for 4 hours a day, the monthly cost is roughly $6.00—less than a single specialty coffee. This small investment provides massive returns in daily comfort, increased home resale value, and the safety of a dry, slip-resistant floor (as radiant heat helps evaporate moisture faster).

Project Gallery

Quotes

These quotes are linked to this showcase and include the products used in this project or recommended for a similar-sized project.

Frequently Asked Questions

Based on local Illinois electricity rates, a small master bath (approx. 23 sq. ft.) costs roughly $0.05 per hour to operate. With a programmable thermostat, most homeowners spend less than $10 per month during the coldest winter months.
Absolutely. In fact, it is the preferred method for heating dense surfaces. The system is UL-listed and includes a GFCI-protected thermostat to ensure total safety in "wet" environments like bathrooms
While radiant floor warming provides significant supplemental heat and makes the room feel much warmer, it is primarily designed for "floor comfort." It allows you to lower your main thermostat because you feel warmer when your feet are toasty.
Usually, it takes 30 to 60 minutes to reach your desired temperature. This is why we use the nSpire Touch thermostat; you can program it to start heating 45 minutes before you wake up so the floor is ready when you are.
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