Real ChatGPT answer · index seed3ivxFR95UfgcompleteHome services and improvement · plumbingcommercial
What are the best energy-efficient tankless water heater models for an older couple living alone who want to lower their monthly utility bills?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the best energy-efficient tankless water heater models for an older couple living alone who want to lower their monthly utility bills?
1 real search · 1 real-search pass
best energy efficient tankless water heaters 2026 residential gas electric UEF installation sizing CaliforniaGoogle ↗
OBSERVEDComparison
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (1)
Classes come from the query-classifier (a local Laya model).
Searches and sources
ChatGPT1 real searches · gpt-6
best energy efficient tankless water heaters 2026 residential gas electric UEF installation sizing California Google ↗
- View product and pricing · homedepot.com
- View product and pricing · homedepot.com
- View product and pricing · homedepot.com
- View product and pricing · homedepot.com
- Water Heater Key Product Criteria · energystar.gov
- Best Tankless Water Heaters 2026: Gas & Electric, Tested & Compared · tanklessheaterlab.com