Radiant HVAC market company Uponor Inc. is investing in a wastewater management firm.

Officials with Uponor North America said the Apple Valley, Minn.-based HVAC sales company has become a minority investor in Upstream Technologies.

The investment is part of its Uponor Innovations LLC subsidiary.

"We are excited about this opportunity and although it is outside Uponor's core strategic focus, Upstream Technologies' products align with our sustainability goals and our vision of enriching people's way of life," said Uponor North America President Bill Gray. "Uponor believes companies play a special role in leading sustainability initiatives by producing products and services that make it convenient, affordable and effective to do the right things for the environment."