Sure! Here’s a short article written from the point of view of a geothermal installation company:
Geothermal Boreholes and Vaults: What They Are and How to Choose the Right Option
At UltraGeoThermal, we don’t just install geothermal systems — we build them from the ground up, literally. That means we handle every part of the process, including borehole drilling and vault installation. If you’re considering geothermal heating and cooling for your home or property, understanding these components is key to making informed decisions.
What is a Borehole?
A borehole is a deep, narrow hole drilled into the earth to access the stable underground temperatures used in geothermal systems. Inside each borehole, we insert a U-shaped pipe that circulates a heat-transfer fluid. This loop draws heat from the earth in winter and sends excess heat back in summer, creating an incredibly efficient energy exchange system.
Who needs boreholes?
Anyone choosing a vertical closed-loop geothermal system. This option is ideal when there’s limited yard space, rocky terrain, or a desire to minimize surface disruption.
How deep are they?
Typically, boreholes range from 200 to 500 feet deep, depending on your system’s size, ground conditions, and local regulations.
What is a Vault?
The vault is an underground chamber where multiple borehole loops connect before entering your home. Think of it as the central hub of your geothermal system, making maintenance easier and reducing the number of pipes coming into your building.
Who uses vaults?
Vaults are especially useful for larger residential systems or commercial installations with multiple boreholes. They provide a clean, organized way to merge lines and protect your system over time.
More about vaults
Choosing the Right Setup
When planning your system, here are a few key considerations:
- Ground space and soil type: Not enough land for horizontal loops? Vertical boreholes are your best bet.
- System size and demand: Larger systems often benefit from a vault to manage multiple loops efficiently.
- Budget and access: Drilling and vault installation are upfront investments but offer long-term savings and performance.
At Ultra Geothermal, we evaluate your property and energy needs to recommend the best configuration. Whether that’s a single borehole and direct loop, or a network of boreholes connected through a custom vault.
Have questions or want a free assessment? We’re here to help you harness the power of the earth.
