Geothermal vs Propane Calculator

Geothermal vs Propane Calculator

Screen the same home under geothermal and propane heating to estimate design load, seasonal delivered heat, backup share, loop flow, and propane gallons displaced without using pricing inputs.

Seasonal apples-to-apples Both systems serve the same estimated annual heating load so the comparison stays tied to envelope, climate, and delivery conditions.
Geothermal sizing signal See screened tonnage, source-side flow, and ground-extracted heat before moving on to a Manual J or contractor proposal.
Backup reality check Geo coverage strategy and propane AFUE change how much of the winter is carried by the loop versus the burner.

Home and Heating Inputs

Imperial inputs active
Load intensity starts with the selected climate, then shifts for envelope, air sealing, ceiling height, delivery penalties, and your chosen design delta.

🌎 Geothermal and Propane Setup

This model compares a geothermal system handling the selected share of seasonal load against the same home heated entirely with propane. It reports energy, loop flow, backup, and emissions only.

📊 Comparison Results

Screened Geothermal Size
3.5 ton
12.3 kW nominal capacity
Sizing reflects the selected coverage strategy plus a load margin tied to loop type and climate severity.
Seasonal Geo Energy
5,900 kWh
92% of seasonal heat delivered
Adjusted COP and geothermal share drive the electricity required to move the selected amount of heat.
Propane Avoided
610 gal
relative to all-propane heating
The calculator compares hybrid geo plus backup against the same annual load carried fully by propane.
Annual CO2 Reduction
2,400 kg
hybrid geo vs all propane
Electric grid intensity and remaining backup gallons determine the emissions difference.
Conditioned area1,176 sq ft
Conditioned volume9,996 cu ft
Adjusted heat rate22.0 BTU/sf
Design heating load25,900 BTU/h
Annual delivered heat56.2 MMBtu
Adjusted geo COP4.12 COP
Loop flow10.5 gpm / 39.7 L/min
Ground heat extracted42.5 MMBtu
Geo seasonal share92%
Backup propane72 gal
All-propane baseline682 gal
Reduction summary610 gal and 2,400 kg CO2

Geothermal covers most of the annual load here, while propane remains useful for rare peak hours or a deliberate hybrid retrofit strategy.

🔬 Comparison Snapshot

📑 Heating Reference Tables

Climate Heat Rate HDD Geo Tons / 1k sf Propane / 1k sf

Geo tons per 1,000 sq ft assume average envelope, average air sealing, 70 F setpoint, and balanced geo coverage. Propane is shown as an all-propane baseline.

Loop Type Winter EWT Adj COP Flow Best Fit

Entering water temperature and base flow strongly influence geothermal screening results before detailed loop-field design.

Preset Home Area Design Load Geo Size Gallons Avoided

🛠 Practical Notes

Use the screening result correctly

If the selected preset or custom home shows unusually high tonnage per square foot, treat that as a shell or distribution flag first. Tightening ducts and air leakage often reduces backup share faster than upsizing equipment.

Why the same load matters

This comparison does not change how much heat the house needs. It changes which source supplies that heat, how much electricity the loop needs, and how many propane gallons remain after geothermal carries its share.

Geothermal calculator against propane help to compare the cost-effectiveness of geothermal and propane systems. It counts the time for repay investment according to starting and using expenses. That utility answers for estimate expenses and possible savings during change of propane, crude, natural gas or electrical baseboard heaters to air source heat pump, geothermal system or natural gas.

Choose values in the fields or enter input later click button for see results. The updated cost depends of entered data and refreshes automatically during changes.

Compare Geothermal and Propane Costs

Geothermal technology spares money daily. It exploits the stable temperature below ground so must not exert for warm either cool the house. Like this it operates more effectively and can give until 80 % fewer expenses than old system.

Home heating and cooling even costs less than cup of coffee in coffeehouse. Annual expense for warming and cooling can reach only 365 dollars. In addition, waterless DX-geothermal unit delivers free warm water for additional savings.

Because different systems use various fuels matters to know how many BTUs stores unit of fuel. For instance one gallon of propane have around 91 500 until 94 000 BTUs. For find equivalent propane price multiply the price of natural gas each therm by means of 0,92.

For estimate propane consumption in pounds use the BTU rating for ovens. If RV propane tank bears 14 gallons of LP gas when fully multiply 14 by means of 91 502. Later divide that amount by means of the whole BTU demand of used LP devices.

20 000 BTU furnace that operates permanently would exhaust 20-pound tank of propane in around 22 hours although boilers normally turnon and turn.

Efficiency one measures by means of Coefficient of Performance (COP). Electrical baseboard heaters has COP of 1. In Northeast United States geothermal heat pumps reaches COP 3,4 or more according to design of the system.

Many factors affect energy costs but annual savings estimates by means of choices in the calculator. Geothermal and air sourced heat pumps use electricity for extract free heat energy from aquifer or from air.

Geothermal vs Propane Calculator

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