Geothermal Sizing Calculator

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Geothermal Sizing Calculator

Estimate building load, equipment tonnage, loop footage, design flow, and entering water temperature range in one place. This calculator blends climate, shell quality, loop type, soil, fluid, and site layout into a fast planning model.

Whole-home sizing logic Compares heating and cooling load, then applies priority and safety buffer before picking the geothermal tonnage.
Loop-field fit check Translates the selected loop strategy into bore, trench, slinky, or pond circuit counts using real footage-per-ton assumptions.
Flow and EWT context Shows design flow and a usable entering-water band so you can sense if the chosen field looks balanced for the site.
⚙ Unit System and Presets
Sizing the current case

Preset note: pick a scenario or enter your own project values below.

📏 Project Geometry and Envelope
🌡 Design Climate and Equipment Path
🌍 Loop Strategy and Source Conditions
TonnageSelected after load comparison, priority choice, and safety buffer.
Loop FootageScaled by climate, soil, fluid, and selected loop topology.
FlowUses equipment family flow-per-ton with fluid correction.
EWT BandShows a planning range for source water entering the heat pump.
📊 Sizing Results
Recommended Unit Size 0.0 BTU/h nominal Choose a scenario or enter project values to generate the first result set.
Total Loop Requirement 0 segments and total footage Loop totals shift with soil, fluid, and selected field geometry.
Design Flow 0.0 gpm 0.0 L/min equivalent Design flow helps confirm loop pumping and manifold planning.
Dominant Design Load 0.0k Heating vs cooling load The dominant season becomes the base load before equipment selection.
Conditioned area0 sq ft
Conditioned volume0 cu ft
Heating intensity0 BTU/sf
Cooling intensity0 BTU/sf
Raw heating load0 BTU/h
Raw cooling load0 BTU/h
Buffered design load0 BTU/h
Selected nominal capacity0 ton
Loop basis0 ft per ton
Total loop footage0 ft
Loop segments0
Estimated EWT band0 F to 0 F
📐 Source and Equipment Snapshot
📋 Loop Type Comparison

Use the table below to compare typical footage-per-ton ranges and see which field geometry best fits tight lots, open yards, or pond access.

Loop type Typical ft/ton Segment basis Best fit
🌱 Soil and Source Comparison

Ground conductivity and moisture shift the required loop field more than many quick rule-of-thumb calculators show.

Medium k trend Loop factor Planning note
📈 Common Project Benchmarks

These preset benchmarks help compare how shell quality, climate, and loop type change geothermal tonnage and field size for realistic home profiles.

Preset Area Design load Tonnage Total loop
🛠 Planning Notes
Heating-dominant sites

When winter load is clearly higher than summer load, add more attention to loop footage, fluid freeze margin, and distribution losses before trimming the bore or trench field.

Land-limited sites

If yard space is tight, compare vertical bores or pond loops before oversizing a horizontal layout. Compact loop types often improve fit even when per-foot drilling effort rises.

Geothermal sizing calculator helps to choose the right gear for the home. Professional calculator for geothermal HVAC systems operate with ground source heat pumps. It estimates the right size of gear, specifications of the system and needs for ground loop.

Geothermal technology saves money daily, because those systems operate effectively thanks to the constant temperature under the earth. Because of that they must not work so hardly for heat or cool the house. Cost can be until 80 % low comparatively with current systems.

How to Size a Geothermal Heat Pump

Many kinds of calculators are available. Some of them estimates specifications for horizontal geothermal systems. Geo-Flo Products bid six calculators for design of geothermal systems on its website and plan to add more.

Between them is calculator for size of pump and for close fall in ground loop. Others cover Cv calculation and flush cart calculator. Exist also mobile flow-rate calculator.

This one determine flow rate according to close fall of heat exchanger. Disponeblas mobile HE-HR calculator for estimate heat of dismissal or extraction. One tool helps about calculations of geothermal borehole depths for find the right length of boreholes.

The right size present imprtinde. Free calculator for heat pumps find the bezonan arctic for cold climate heat pumps according to size, insulation and place. For instance, home requires around 1 ton of geo pipe for 1300 square feet.

For elegant cabin can be required more, because such houses usually bad isolate. Geothermal service for heat pump sizing include Manual J calculations for heating and cool burden. Well are do Manual J calculation before replace HVAC system, especially when boreholes cost a lot.

Efficiency taksiĝas by means of Coefficient of Performance or COP. Baseboard electric heaters has COP of 1. Geothermal heat pumps in Northeast reach 3.4 or more.

That depends of the design and impact of the system. COP of 3 is common and conservative. Different systems use different fuel types.

Necesas know, how many BTU carries unit da fuel. The efficieny rates of systems help to count involved units for 1 million of BTU. Such utilities are usefull for compare costs.

Some also converts EER to SEER.

Geothermal Sizing Calculator

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