What are the actual utility cost savings of upgrading to a Navien tankless water heater compared to the standard tank unit offered in my Toll Brothers base contract?
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
What are the actual utility cost savings of upgrading to a Navien tankless water heater compared to the standard tank unit offered in my Toll Brothers base contract?
3 real searches · 1 real-search pass
Navien tankless water heater efficiency UEF NPE-240S2 specifications standard gas tank water heater UEF 2026Google ↗
OBSERVED
Charlotte North Carolina residential natural gas rates 2026 cents therm electricity rate Duke Energy residential 2026Google ↗
OBSERVED
DOE water heater energy savings tankless versus storage water heater annual operating cost typical householdGoogle ↗
OBSERVED
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.
Classifying 3 queries…
Searches and sources
ChatGPT3 real searches · gpt-6
Navien tankless water heater efficiency UEF NPE-240S2 specifications standard gas tank water heater UEF 2026 Google ↗
Charlotte North Carolina residential natural gas rates 2026 cents therm electricity rate Duke Energy residential 2026 Google ↗
DOE water heater energy savings tankless versus storage water heater annual operating cost typical household Google ↗
- NPE-240S2 ultra-high efficiency condensing water heater · navieninc.com
- Navien · energystar.gov
- Why Piedmont charges North Carolina’s highest gas rates · charlotteobserver.com
- PNG lowers gas rates for North Carolina customers · wsoctv.com
- Save More with ENERGY STAR Gas Tankless Water Heaters · energystar.gov
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
Navien tankless water heater efficiency UEF NPE-240S2 specifications standard gas tank water heater UEF 2026 OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
Charlotte North Carolina residential natural gas rates 2026 cents therm electricity rate Duke Energy residential 2026 OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 | |
DOE water heater energy savings tankless versus storage water heater annual operating cost typical household OBSERVED | Google ↗ AI Mode ↗ | — | — | — | — | 1x of 1 |