Drawing from a 400-unit retrofit project in Portland, Vidhisha Moopnar explores how creative ducting, repurposed infrastructure, and noise mitigation are key to successfully transitioning multifamily buildings to high-efficiency heat pump water heaters.

Heat pump water heaters can save families about $500 a year on energy bills, and with rebates of up to $3,000 nationwide, plus a federal tax credit of up to $2,000, there’s never been a better time to make the switch before incentives expire.