Charles S. L. Baker — Friction Heat Radiator — Never Forget Black Innovation T-Shirt | Buillth
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Regular price
$39.99
Sale price
$29.99
★★★★★ EVERY PIECE TELLS A TRUE STORY
Built to Be Worn
100% Ring-Spun Cotton — Softer and stronger than standard cotton. Pre-shrunk for a consistent fit, wash after wash.
Heavyweight 4.5 oz Fabric — Breathable and built to last. Comfortable enough for all-day wear, substantial enough to hold the print for years.
Unisex True-to-Size Fit — A relaxed silhouette that works across body types. Wear it how you want. The history stays the same.
The Construction
Double-Needle Stitching — Reinforced at the shoulder, armhole, neck, waistband, and sleeves. The same places a garment fails first. We built those points to outlast the rest.
Seamless Collar — Quarter-turned construction. Holds its shape over time. No center crease. No shortcuts.
Tear-Away Label — Clean inside and out. Remove it. Nothing left behind but the work.
Stand Behind the Work
30-Day Returns — If it's not right, we'll make it right. No forms. No friction. No questions.
Printed in the USA — Every domestic order printed and fulfilled on American soil.
Heat without fire. No combustion, no flame, no fuel burning anywhere in the system — just two metal cylinders and a spinning core generating warmth through friction alone. Charles S. L. Baker spent twenty-three years perfecting it and patented the first friction heat radiator in 1903. Born enslaved in Missouri, he became a self-taught mechanical engineer who reimagined how a building could be heated.
Now you know. Wear that.
The Buillth Friction Heat Radiator tee is part of the Never Forget collection — wearable archives honoring the Black inventors who built the modern world and never got the credit.
The design: Museum-quality archival badge. Twin cylinder core, friction drive, radiant heat lines — the invention that warmed rooms without a single flame, made wearable.
Wear it. They'll ask. Then you tell them.
The shirt: Heavyweight unisex tee. 100% ring-spun cotton. Soft enough to live in, bold enough to start a conversation. Tear-away label. Runs true to size.
Charles S. L. Baker — The Short Version
Charles S. L. Baker was born into slavery in 1859 in Savannah, Missouri, and became a self-taught mechanical engineer with no formal training. Over twenty-three years of experimentation — rubbing bricks, testing metals, refining a spinning core inside a metal cylinder — he perfected a way to generate heat through friction alone, no fire required. He patented the friction heat radiator in 1903 and co-founded the Friction Heat & Boiler Company the following year. A man born with nothing engineered a new way to keep a building warm.
→ Read the full story of Charles S. L. Baker on the Buillth inventor page.
