In 2022, California introduced that it wished to put in 6 million warmth pumps by 2030. So far, it’s solely put in about 2.3 million, which suggests to make that objective, it will have to common about 2,000 installs per day for the following 5 years. Hitting that concentrate on may very well be troublesome contemplating a typical mini cut up can take round a day to put in and price round $4,000 to $6,000 per zone, in line with EnergySage.
“We’ve obtained to do one thing totally different,” Mary-Ann Rau, co-founder and CEO of Merino Energy, informed TechCrunch.
Merino Energy, which has been working in stealth, desires to vary each elements of the equation by simplifying the warmth pump dramatically. The startup gave TechCrunch an unique peak at its new product, the Merino Mono, which prices $3,800, together with the one-hour set up course of.
Rau beforehand labored at Apple, the place you might have seen her in a keynote or two introducing new AirPods, and Quilt, one other warmth pump startup. While at Apple, she labored to affect her dwelling in San Francisco. She put in photo voltaic panels, an induction range, and an EV charger, however when it got here time to put in warmth pumps, Rau “had complete sticker shock.”
“That’s once I realized that if it was inaccessible for for me — proper, I’m privileged — it’s out of attain for the overwhelming majority of Californians and Americans,” she mentioned.
Typical warmth pumps have two elements, an indoor warmth exchanger and an outside condenser. Merino combines these into one unit which occupies as a lot house as a typical radiator beneath a window. It plugs into a typical 120-volt outlet, which means that householders are much less prone to want electrical upgrades. “If you may plug in a microwave and it really works on that on that outlet, then the Merino Mono is gonna work on that outlet,” Rau mentioned.
The Mono has all the standard stuff anticipated of the brand new era of warmth pumps: It’s Wi-Fi linked, it will possibly sense when individuals are within the room, and totally different items in a family can coordinate their operation for effectivity and luxury. Rau mentioned the corporate is even creating an integration with Oura Rings in order that the warmth pump can drop the temperature of the room by a pair levels when the wearer is in REM sleep.
Techcrunch occasion
San Francisco, CA
|
October 13-15, 2026
To set up the Mono, employees lower two holes within the wall, one to attract in air and one other to exhaust it. The air in that loop flows over coils for the condenser, which then ship refrigerant to the warmth exchanger. There, one other loop attracts air from the room to warmth or cool it. The solely issues seen from the skin of the house are the consumption and exhaust ports and a condensate pipe.
By shifting all of the elements to a single unit inside the home, Merino’s design is way less complicated to put in, Rau mentioned. There’s no out of doors unit to hook up with an indoor one, which might contain brazing copper traces and charging with refrigerant. “They’re very costly from a labor perspective,” she mentioned.
In miniaturizing the system, Merino has traded some effectivity, which can make the product extra appropriate for smaller dwelling areas. The Merino Mono has a SEER2 ranking of 15.2, whereas the Quilt two-zone system hits 25. Large out of doors condensers merely do a greater job. But the startup felt that for a lot of functions, together with residences and condominium buildings in dense city areas, it made sense to maintain every part indoors and as streamlined as doable. The Mono, Rau mentioned, “is an answer the place the associated fee is proportional to the issue that we’re making an attempt to unravel.”
The firm is at present putting in 48 warmth pumps on the Civic Center Apartments, a low-income improvement in Richmond, California. For now, it’s centered on California as its preliminary market, though it has plans to broaden to different states like Hawaii, Oregon, and Washington. So far, six installers have signed up within the Bay Area and Los Angeles. The firm is taking pre-orders now for supply later this 12 months.
Rau hopes the simplified product will assist warmth pumps conquer the market. “If we are able to cut back the period of time and complexity of putting in a warmth pump, then we are able to scale adoption,” she mentioned.



