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Lake Texoma Area Geothermal Design and Installation Case Study

Project type: Anonymous geothermal design and installation case study in the Lake Texoma / Cartwright, Oklahoma area. Customer identity, exact address, private pricing, private business system identifiers, precise GPS, faces, license plates, signatures, and private paperwork are intentionally omitted.

Project Summary

Dave Hartzell confirmed that Hartzell’s Heat & Air designed, installed, and completed this geothermal project. The public facts below are limited to details supported by recovered records or Dave’s final confirmation.

• Generalized location: Lake Texoma / Cartwright, Oklahoma area
• Verified scope: Designed, installed, and completed by Hartzell's Heat & Air.
• Equipment/tonnage: Final installed equipment model is not published; recovered load records did not prove final model details. The load calculation showed 8.83 tons net and 9.45 tons at 75% sensible capacity, but final installed tonnage is not published.
• Loop type: Not published; a possible vertical-well discussion exists in private evidence, but final loop design was not proven for publication.
• Media decision: Text-only. Existing media remains private and was not approved as public-safe for this publication run.

Documented Project Challenge

A large three-floor lake-area residence needed design work that respected both heating and latent cooling loads instead of relying on square footage alone.

Design and Installation Scope

The page publishes only the load-calculation facts verified in recovered Rhvac records and Dave's final HHA completion confirmation. It does not mention unsupported pool-size claims, exact address, final model, or loop specifics.

Load and Design Notes

Recovered Rhvac Manual J/D/S records support approximately 6,995 square feet, three floors, 87,661 Btuh heating load including ventilation, 85,010 Btuh sensible cooling, 20,982 Btuh latent cooling, and 105,992 Btuh total cooling.

Field Lesson

Large homes near lake humidity can be cooling-latent projects as much as heating projects. Manual J/D/S numbers keep the design from drifting into oversizing or unsupported tonnage claims.

Dave’s Geothermal Experience

Hartzell’s Heat & Air handles geothermal work with field experience, load calculation discipline, and practical service access in mind. The goal is not to make a bigger claim than the records support; it is to design a system that can be serviced and verified after installation.

Related Geothermal Resources

• Geothermal heat pump basics for Oklahoma homes
• Geothermal installation in Oklahoma
• What geothermal drilling looks like in a yard
• Manual J load calculation in Oklahoma

FAQ

Were pool dimensions documented for publication?

No. This page does not publish pool dimensions because those details were not supported for publication.

What load facts are supported?

Recovered Rhvac records support about 6,995 square feet, three floors, 87,661 Btuh heating load, and 105,992 Btuh total cooling load.

Is final installed tonnage published?

No. The design load tonnage is published, but the final installed equipment tonnage/model was not proven in the public-safe evidence package.