--- title: Reservoir raises $8M to make water heaters that people —... description: Boston-based startup Reservoir raised an $8M seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating, to scale production... canonical: https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Reservoir raises $8M to make water heaters that people — and the grid — will actually want | daily.dev og:description: Boston-based startup Reservoir raised an $8M seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating, to scale production... og:url: https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms og:image: https://api.daily.dev/og/posts/I1BWxU7ms.png og:image:alt: Reservoir raises $8M to make water heaters that people — and the grid — will actually want og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Reservoir raises $8M to make water heaters that people — and the grid — will actually want **[TechCrunch](https://daily.dev/sources/tc)** · 5 min read · 0 upvotes · 0 comments ## Summary Boston-based startup Reservoir raised an $8M seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating, to scale production of its smart heat pump water heater. The device predicts hot water demand using a trained model, heats when electricity is cheap, detects leaks via an ultrasonic flow sensor, and can support grid demand response programs. Reservoir has installed about 100 units and aims for 1,000 by end of next year. Pricing starts at $5,000 (Core) and $6,500 (Max), including installation, with Massachusetts offering a $1,050 rebate. The company also launched its own plumbing arm to simplify sales and installation. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How much more efficient is Reservoir's heat pump water heater compared to standard electric and gas water heaters? Reservoir's heat pump water heater is nearly four times more efficient than a standard electric water heater and five times more efficient than a natural gas water heater. It also uses predictive heating, trained over the first month in a home on usage patterns, to run the heat pump during cheaper, lower-demand electricity periods while ensuring enough hot water supply. _Engineers tracking efficiency gains in climate hardware follow funding and product news like this on daily.dev._ ### How much does a Reservoir smart water heater cost and how does it compare to a regular heat pump water heater? Reservoir's Core model costs $5,000 including installation, and the Max model costs $6,500. Massachusetts residents get a $1,050 rebate, bringing the Core price to $3,950, competitive with an 80-gallon AO Smith heat pump unit priced around $3,500 plus roughly $1,000 for installation. Reservoir also claims Boston homeowners could save up to $1,000 per year in energy costs, backed by a 10-year warranty. _Anyone weighing climate hardware purchases against long-term savings can follow pricing details like these on daily.dev._ ## Similar posts on daily.dev - [Heat pump startup Quilt raises $20M Series B to expand sales](https://daily.dev/posts/heat-pump-startup-quilt-raises-20m-series-b-to-expand-sales-mp3bs8fdx) · TechCrunch · 0 upvotes · 0 comments - [The giant heat pumps designed to warm whole districts](https://daily.dev/posts/the-giant-heat-pumps-designed-to-warm-whole-districts-hme7k57an) · Hacker News · 1 upvotes · 0 comments - [Battery-Powered Air Conditioning Turns Homes Into VPPs](https://daily.dev/posts/battery-powered-air-conditioning-turns-homes-into-vpps-ceuh5fwla) · IEEE Spectrum · 0 upvotes · 0 comments - [Big Heat Pumps Are Doing Big Things](https://daily.dev/posts/big-heat-pumps-are-doing-big-things-vxephezvx) · Hackaday · 0 upvotes · 0 comments - [GALVANY raises €10M to fix Germany's heat-pump market](https://daily.dev/posts/galvany-raises-10m-to-fix-germany-s-heat-pump-market-ddbaspnz0) · The Next Web · 0 upvotes · 0 comments --- Tags: [#tech-news](https://daily.dev/tags/tech-news), [#startup](https://daily.dev/tags/startup), [#climate-tech](https://daily.dev/tags/climate-tech) [View this post on daily.dev](https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Reservoir raises $8M to make water heaters that people — and the grid — will actually want","url":"https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms"},"datePublished":"2026-08-12T10:00:27.693Z","dateModified":"2026-08-12T11:02:55.099Z","description":"Boston-based startup Reservoir raised an $8M seed round led by Asymmetric Capital Partners, with Founder Collective and MCJ participating, to scale production...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d4bc831c410eb7cea2274dc17ded789e?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d4bc831c410eb7cea2274dc17ded789e?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"TechCrunch","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"TechCrunch","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/tc","url":"https://daily.dev/sources/tc"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"tech-news,startup,climate-tech","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"TechCrunch","item":"https://daily.dev/sources/tc"},{"@type":"ListItem","position":3,"name":"Reservoir raises $8M to make water heaters that people — and the grid — will actually want"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/reservoir-raises-8m-to-make-water-heaters-that-people-and-the-grid-will-actually-want-i1bwxu7ms#faq","mainEntity":[{"@type":"Question","name":"How much more efficient is Reservoir's heat pump water heater compared to standard electric and gas water heaters?","acceptedAnswer":{"@type":"Answer","text":"Reservoir's heat pump water heater is nearly four times more efficient than a standard electric water heater and five times more efficient than a natural gas water heater. 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