Comfort Heating That Reclaims Usable Space

The THX in-floor convector replaces above-ground solutions that take up valuable floor space, opening up the room for foot traffic, furnishings and activities.


THX drops into the floor, adding supplemental heat to new or remodeled spaces without compromising the building’s design aesthetic.

Heat Envelope Protection

THX creates an effective draft barrier at curtain walls, preventing the primary HVAC system from becoming overtaxed, which can lead to inefficiency and higher utility costs.

Peak Performance, Hidden Package

As the most compact, in-ground heating solution on the market, THX delivers 30% more watts/sq. ft. than competing models — the same level of output as above-ground convectors.

UL Rated Sealed Compartment

Factory tested and certified to fit your installation, so you avoid the expense and inconvenience of testing on site.

Speedy Service

Maintenance and cleaning are fast and easy with THX. A single technician can service the THX unit in just a few minutes.

Let’s Talk Comfort

The THX in-floor convector creates an effective draft barrier, keeping occupants comfortable while protecting your building’s overall heating envelope.

By preventing drafts and removing unsightly condensation from exterior windows—

See It in Action »

THX ACTUALLY SUPPORTS your primary HVAC, making it run more efficiently, so you save on utility costs.

Customized Heating to Suit Your Exact Specifications

Modular Design

THX saves space while providing maximum output. A single technician can wire and connect multiple units to extend warmth across wider areas.

Customized Heating to Suit Your Exact Specifications

Finishing Flexibility

Leveling and mounting legs allow you to raise each unit to the appropriate height for your space. Choose from three grille color options to fit your aesthetic. See How It Works »

Customized Heating to Suit Your Exact Specifications


THX can be controlled with a low- or line-voltage thermostat. Available BMS-compatible relays tie the unit into your overall climate control system.

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