Company intelligence
As of August 12, 2026, Reservoir has raised at least $8M in equity across 1 sourced funding round.
Reservoir makes heat pump water heaters designed to heat water when electricity demand and prices are low.[1] Each unit spends its first month in a home learning water-use patterns, then runs its heat pump at the cheapest and most efficient times.[1] The heat pump is nearly four times more efficient than an electric water heater and five times more efficient than a natural gas model.[1] The heaters also include an ultrasonic flow sensor that alerts homeowners to plumbing leaks.[1] The Max version costs $6,500 and the base Core version $5,000, with installation included.[1] The Boston area is its first market.[1] The funding is meant to put more of its water heaters into Boston-area homes.[1] Over time, Reservoir could pool its fleet to take part in utility demand response programs.[1]
To simplify pricing and sales, Reservoir started its own plumbing company.[1]
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| Date | Round | Amount | Valuation | Lead investors | Source |
|---|---|---|---|---|---|
| Aug 12, 2026 | Seed | $8M | — | Asymmetric Capital Partnersunverified | TechCrunch |
Equity only. “Equity raised” above sums the rounds with a dated, linked source; rumored rounds, tender offers and secondary sales are listed but not counted, and debt financing is listed separately.
On August 12, 2026, it announced an $8 million seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating.[1]
On August 12, 2026, it announced an $8 million seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating.[1]
Reservoir was co-founded by Luke Winston-Almanzar, formerly chief business officer at Formlabs, with Gabriel Parisi-Amon and Jake Felser.[1]
Reservoir makes heat pump water heaters designed to heat water when electricity demand and prices are low.[1]
Reservoir has raised at least $8M in equity across 1 sourced funding round tracked by Value Add VC. The most recent was an $8M Seed in August 2026, reported by TechCrunch. Debt financing, tender offers and secondary sales are not counted.
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.
