Engineered Loop Field Design for Maximum Geothermal Performance
A geothermal system is only as good as the loop field that supports it. The ground loop is the heart of a geothermal heat pump, responsible for delivering stable, renewable thermal energy to the home year-round. At Pack-Timco, we design loop fields with engineering precision—ensuring proper sizing, soil compatibility, flow balance, and long-term resilience for larger Connecticut and New York homes.
Whether you’re installing a new geothermal system or upgrading a legacy loop field, our design approach eliminates guesswork and maximizes long-term efficiency, comfort, and reliability.
Why Loop Field Design Matters
Unlike conventional HVAC systems, geothermal performance depends heavily on what happens underground. Poorly sized or poorly balanced loop fields lead to short cycling, temperature drops, poor heating capacity, and excessive system stress.
Pack-Timco ensures the loop field is engineered specifically for your home, your land, your geology, and your comfort needs—not based on generic rules of thumb.
Our loop field designs account for:
- Heat loss and heat gain calculations
- Soil composition and thermal conductivity
- Available land and property layout
- Horizontal or vertical drilling feasibility
- Water table depth and moisture conditions
- Pipe type, diameter, and material standardization
- Hydraulic balancing and flow rate optimization
- Long-term thermal sustainability
The result is a stable geothermal foundation that supports optimal performance every season of the year.
Horizontal, Vertical, and Hybrid Loop Field Expertise
Every property is unique, and the loop field must be tailored to match both the home and the land it sits on. Pack-Timco evaluates all loop field options and determines the ideal configuration for long-term results.
Horizontal Loop Fields
Ideal for properties with sufficient land area.
- Lower excavation costs
- Flexible layout options
- Excellent performance when properly sized
- Strategic trench depth for stable seasonal temperatures
Vertical Borehole Loop Fields
Best for properties with limited yard space or challenging ground conditions.
- Requires minimal surface area
- Provides excellent year-round temperature stability
- Highly efficient for large or multi-zone homes
- Ideal for high-end residential projects with limited landscape disruption
Hybrid and Advanced Loop Configurations
For highly customized homes, limited space, or mixed-system integration.
- Combination of vertical, horizontal, or pond loops
- Supports large demand loads with balanced thermal exchange
- Ideal for homes with radiant, air handlers, and heat pumps in parallel
Pack-Timco designs each loop field for maximum performance—not minimum cost—ensuring your geothermal system remains stable for decades.
Integrated Design for Whole-Home Compatibility
Larger homes often combine geothermal with other comfort systems such as radiant heating, air handlers, zoning, humidity control, or hybrid backups. Our loop field design accounts for these elements from the start.
We ensure the loop field supports:
- Multi-zone distribution
- Radiant floor heating at varying temperatures
- Hydro-air handlers for both heating and cooling
- Domestic hot water production via desuperheaters
- Supplemental backup systems if required
- Load shifting and efficiency management
This planning guarantees that all mechanical components operate in harmony with the ground loop, maximizing lifespan and comfort.
Long-Term Efficiency Through Engineering
A properly engineered geothermal loop field offers significant long-term benefits:
Stable, Predictable Heating and Cooling
Ground temperatures remain constant year-round, resulting in consistent comfort.
Low Operating Costs
Once installed, geothermal systems use far less energy than oil, gas, or electric resistance heat.
Environmentally Clean Operation
No combustion, no emissions, and minimal mechanical wear.
Quiet, Low-Maintenance Performance
Fewer outdoor components mean quieter operation and reduced exposure to the elements.
Long Lifespan
Properly designed loop fields can last 50+ years with minimal intervention.
Protecting Your Investment Through Ongoing Support
Even with a long-lasting loop field, regular system checks ensure optimal performance. Pack-Timco provides:
- Thermal performance evaluations
- Flow balancing and pump calibration
- Monitoring of pressure, flow rates, and loop fluid
- Long-term geothermal maintenance plans
- Integration reviews when adding new zones or equipment
This ensures your loop field continues supporting efficient, reliable geothermal comfort for decades.








