Keen Home

Keen Home built the Smart Vent, a connected replacement for standard floor and wall vents that opens and closes automatically to direct heating and cooling to the rooms that need it. The company was founded in New York by Nayeem Hussain and Ryan Fant, who wanted to bring room-by-room climate control, often called zoning, to ordinary homes without the cost of tearing into the existing ductwork.

The founders asked for 750,000 dollars in exchange for 10 percent of the company, a high valuation that drew several competing offers. Kevin O'Leary, Daymond John, and Robert Herjavec all engaged, and after negotiation Herjavec landed the deal at 750,000 dollars for 13 percent. It was one of the larger investments of the season and reflected real shark confidence in the connected-home category.

Keen Home stood out because it tackled a familiar household annoyance, uneven temperatures between rooms, with a product that integrated into the growing smart-home ecosystem. The competitive bidding showed how attractive the space was to the sharks, and Herjavec's technology background made him a logical partner for a connected hardware startup.

After the episode, Keen Home grew its sales and distribution, reporting over a million dollars in revenue in the year following the show as the Smart Vent reached more homes. The company added related products, including a smart air filter, and worked on integrations with broader smart-home platforms so the vents could coordinate with thermostats and other connected devices.

As of 2026 Keen Home is winding down the connected side of its business. The company announced it would end cloud-based app support and remote functionality for its devices in March 2026, after which the existing vents continue to work mechanically but lose their smartphone and remote features. So while hardware has remained available, the connected smart-home experience is being discontinued.