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Monday 9am - 6pm Tuesday 9am - 6pm Wednesday 9am - 6pm Thursday 9am - 6pm Friday 9am - 6pm

Kelvin, formerly Radiator Labs

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United States
New York, NY
Kelvin, formerly Radiator Labs

Decarbonizing the world's legacy buildings The Kelvin Cozy is a smart, internet-connected, thermostatic cover for radiators.

We're a NYC hardware startup solving a 100-year-old problem: the lack of comfort and efficiency in steam heated buildings. Buildings outfitted with Cozys save up to 45% on heating costs, and residents with Cozy are able to control their heating temperatures for the first time in the history of steam heated buildings.

08/31/2026

Summer is winding down - are you ready for heating season? See where you fall on our heating season matrix 👀

08/25/2026

The first Cozy Core has been installed 🎉! Our Operations Team is currently making quick progress at a multifamily building in Manhattan. We are excited to provide temperature control to the tenants and help the building save on heating costs this winter!

08/11/2026

TRVs have long been an accessible option for radiator heating control, but as technology has progressed, there are other options on the market, like smart radiator covers (like the Cozy).

We've decided to compare the two to see which option provides the most benefits in the long run.

07/30/2026

We recently finished installing Cozys in a Brooklyn co-op building, and we're very happy with how they turned out! Take a look and see if you can spot the Cozy 🔍

07/27/2026

We're excited to welcome Kavan Pujara and Christina Pena to our Sales team as Business Development Representatives!

Christina is joining Kelvin after spending nearly a decade of her career in the medical field. After deciding that she wanted a career change, Christina pivoted towards clean energy and completed various building energy courses.

Kavan graduated from the University of Albany and after spending some time in solar energy, he decided to focus more on building energy sustainability.

Congratulations to both!

06/23/2026

Last Thursday, the Kelvin team made their way to Dock 72 in the Brooklyn Navy Yard to participate in the 2026 Energy Summit & Expo hosted by the Brooklyn Chamber of Commerce! As always, we enjoyed talking with our industry peers and want to thank everyone who stopped by our table to learn about our building decarbonization solutions.

06/22/2026

Just spotted 👀: A Clinton Hill Co-op apartment with a Cozy Custom featured in New York Magazine's Curbed section!

14B comes with an architect-designed kitchen, Blomberg appliances, a recently renovated bathroom, ample natural light, and best of all, a Cozy to keep you comfortably heated in the winter. What more could you ask for?

06/10/2026

We are excited to welcome our new summer interns, Lilly, Hibah and Jessie!

Lilly Xu is a rising senior at Harvard University studying Environmental Science and Public Policy with a minor in Statistics. She serves as the President of the Harvard Undergraduate Real Estate Investment Group. Prior to this role, she was the prior President of the Harvard Undergraduate Clean Energy Group, overseeing consulting projects within the climate and energy sphere. Her academic interests include land use and energy efficiency, and she is a recipient of the Ivory Fellowship.

Hibah Zeinab is currently a junior in Public Accounting and Business Management at Brooklyn College, joining Kelvin as a Sales Operations and CRM intern. She is the president of Koppelman Toastmasters and as a first generation college student, has been selected as a BASTA fellow for the BASTA x Bloomberg Mentorship program. She is passionate about the intersection of strategy, client relations, and sales, and also loves Formula 1 and baking!

Coleene Jessie Elias is a finance professional at Cornell University and is coming in as a Business Development Intern at Kelvin. Her focus is in leveraging the UN Sustainable Development Goals, decarbonization, and fintech to drive social equity. She was awarded the 2025 Top 100 Global Innovator award by the University of Delaware for leadership roles at a virtual enterprise and the Girls National Policy Network, and has also served as a Lead Researcher for government and behavioral initiatives.

Congratulations to all three of you for landing these internships and we are excited to work with you this summer!

06/01/2026

Check out these heat pumps underway for one of our pilot Adaptive Electrification projects! Efficient cooling just in time for the hot summer weather 😎

04/28/2026

On Wednesday, the Kelvin team headed to Midtown for the Cooperator Expo! We loved connecting with so many people face to face, showing off our new product, the Cozy Core, and keeping people well caffeinated for the event 😉

Thank you to everyone who stopped by the booth - we're excited to keep those conversations going!

Address

Brooklyn Navy Yard, 63 Flushing Avenue, Building 303, Suite 702
New York, NY
11205

Opening Hours

Monday	9am - 6pm
Tuesday	9am - 6pm
Wednesday	9am - 6pm
Thursday	9am - 6pm
Friday	9am - 6pm

Website

http://kel.vin/

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