Your heat pump water heater is costing more than it should. The data can show you why.

We diagnose and design central heat pump water heating systems for hotels, grocery and multifamily buildings in California.

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What failure looks like in the data.

Still frame of a storage-tank temperature animation
Placeholder clip. The real clip shows the thermocline collapsing during the morning peak.

One fault, one chart, one number — twice a month.

HPWH Insights, from AbGarm Energy

Field data from central heat pump water heating systems: what goes wrong, what it costs, and what to check this week. No vendor pitches.

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About AbGarm Energy

AbGarm Energy helps building owners get the hot-water performance they were promised. Our work is technology agnostic: we make sure your plant delivers what it was designed to deliver.

Our work draws on 18 years of energy systems analysis and co-authorship of several California utility emerging-technology studies on central heat pump water heating.

Based in the San Francisco Bay Area; we work statewide.

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