Mid-century modern homes are celebrated for their clean lines and expansive glass, but they are often notorious for being chilly—especially in the foothills of Altadena. For this master bedroom renovation by ACS Design Build Group, the goal was to preserve the home's architectural integrity while introducing modern comfort. By installing a powerful WarmlyYours radiant heating system under new engineered wood floors, the homeowners created a sanctuary that is as cozy as it is stylish.
Project Details
- Location: Altadena, California
- Room Type: Master Bedroom (Mid-Century Modern)
- Heated Area: 231 sq. ft. (Total Room Size: 283 sq. ft.)
- Flooring: Engineered Wood (Glued)
- System Voltage: 240V
- System Power: 3,464 Watts
- Current Draw: 14 Amps
- Operating Cost: $1.18/hour (based on avg. CA rate of $0.34/kWh)
- Installer: ACS Design Build Group
Invisible Comfort for a Large Suite
The Challenge Mid-century homes in Southern California often feature slab-on-grade foundations or terrazzo elements that, while beautiful, remain stubbornly cold to the touch. This expansive 283-square-foot master suite needed a heating solution that could handle the heat loss typical of older architecture without disrupting the clean visual lines of the room.
The Solution To cover the large floor area efficiently, the installers utilized TempZone™ Flex Rolls. The 240V system was chosen for its ability to handle larger square footage on a single circuit compared to 120V systems. The "cut-and-turn" roll design allowed the installers to easily navigate the room's layout, ensuring 231 square feet of total heating coverage.
The Outcome Installed directly under the glued engineered wood flooring, the system provides "primary heating" capabilities. The floor now radiates gentle, even warmth upwards, eliminating cold spots and allowing the homeowners to lower their central HVAC usage. The addition of the nSpire Touch WiFi Thermostat gives them total control, ensuring the floor is warm only when they need it, such as chilly mornings or late evenings.
Featured Products
1. TempZone™ Flex Roll (240V) Designed for larger rooms, the 240V Flex Roll minimizes the amperage draw on your electrical panel while providing robust heat (15 watts per sq. ft.). The flexible mesh allows installers to cut and turn the roll to fit any room shape.
- Used in this project: 3' x 70' Roll and 1.5' x 14' Roll.
2. nSpire Touch WiFi Thermostat A sleek, modern controller that puts comfort in the palm of your hand. It features a 3.5” color touchscreen and remote control via smartphone app, perfect for pre-heating the bedroom before you head home.
