# Reservoir raises $8M to make water heaters that people and the grid will actually want; plus, AI code-testing startup Blacksmith’s valuation jumps almost 10x

An episode of [TechCrunch Startup News](https://invisiblenetwork.ai/podcast/1145974783), 13 Aug 2026, 9:14.

Audio: https://mgln.ai/e/211/traffic.megaphone.fm/AIRWV5493149710.mp3

Reservoir has built an ultra-efficient water heater that can predict hot water demand, store energy, and detect plumbing leaks throughout a home. Also, Blacksmith says revenue has grown more than tenfold over the past year. Learn more about your ad choices. Visit podcastchoices.com/adchoices

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