How much does it cost to replace a geothermal unit?

Asked By: Marge Ajila | Last Updated: 23rd June, 2020
Category: home and garden indoor environmental quality
3.9/5 (30 Views . 10 Votes)
The national average cost to install a geothermal heating or cooling system is $8,073, with most homeowners spending between $3,422 and $12,723. Including equipment and variable excavation costs, total prices can exceed $20,000. Geothermal heat pumps come in 2 to 6-ton units and average between $3,000 and $8,000.

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Furthermore, how long does a geothermal unit last?

about 25 years

Secondly, is geothermal worth the cost? It is, in fact, about what is unique to a geothermal system that makes it worth it. Geothermal heat pumps are the most efficient. A high-efficiency furnace or central system achieves around 90-98% efficiency on fuel or energy consumption. That's pretty good, for sure.

Consequently, how much is a new geothermal system?

The national average cost to install a geothermal heating or cooling system is $8,073, with most homeowners spending between $3,422 and $12,723. Including equipment and variable excavation costs, total prices can exceed $20,000. Geothermal heat pumps come in 2 to 6-ton units and average between $3,000 and $8,000.

How much does a 5 ton geothermal unit cost?

Geothermal Heat Pump Cost Factors. An average geothermal heat pump costs between $1,500 to $2,500 per ton. While the precise heat pump size is dictated by the home's heating and cooling needs, a standard single-family 2,000 square foot home usually requires a 5 ton heat pump ($7,500 to $12,500).

37 Related Question Answers Found

What are 3 disadvantages of geothermal energy?

Disadvantages of Geothermal Energy
  • 1 Environmental Issues. There is an abundance of greenhouse gases below the surface of the earth, some of which mitigates towards the surface and into the atmosphere.
  • 2 Surface Instability (Earthquakes)
  • 3 Expensive.
  • 4 Location Specific.
  • 5 Sustainability Issues.

What is bad about geothermal energy?

Geothermal Energy Disadvantages
Potential emissions – Greenhouse gas below Earth's surface can potentially migrate to the surface and into the atmosphere. Such emissions tend to be higher near geothermal power plants, which are associated with sulfur dioxide and silica emissions.

Does geothermal use a lot of electricity?

Geothermal HVAC systems are not considered a renewable technology because they use electricity. Fact: Geothermal HVAC systems use only one unit of electricity to move up to five units of cooling or heating from the earth to a building. 2.

Does Geothermal add value to your home?

Energy savings, no matter where they come from, add value. And it is a fact that a geothermal system is energy saving. Geothermal reduces your annual utility costs, thus adding value to your home.

Can geothermal energy run out?


Geothermal energy isn't entirely renewable—it will run out when the Earth does.

How warm does geothermal heating get?

So, geothermal systems deliver warm air, not hot air. If the room temperature is 70°F the average delivered air temperature should be 90 – 95°F. The bottom line is it will heat your home for a lot less than any other automatic method. Of course free wood can do it for less, and wood is also renewable.

Can you plant trees over geothermal lines?

You could plant small trees / large shrubs in the setback area and then plant a line of low shrubs/ground cover (something showy and distinctive) over the lateral geothermal lines.

How far down do you have to dig to get geothermal energy?

How deep do you have to dig? For a horizontal loop you only need to dig between 6 - 8 feet deep. For a vertical loop you need to drill between 250 and 300 feet deep.

Can I install my own geothermal system?

Pre Sized Easy to Install DIY Geothermal Heat Pump Kits Info. There are 4 common types of popular geothermal systems. The type of system you will choose is dependent on the local topography and land or water space available. However, the most common and simplest to install is the horizontal ground loop or the well loop

What size geothermal unit do I need?


Assuming your old heater is properly sized you can then use this to calculate the size of the new geothermal heater. 1 ton = 12,000 BTU = 3.5 Kw - So if your existing heater is 48,000 BTU then you would need to purchase as 4 ton GeoCool unit.

How much land do you need for a ground source heat pump?

How much land is needed for a ground-source heat pump? Trenches should be at least two metres deep to harness a consistent year-round heat source. They will need 50-80 metres of pipe per kilowatt (kW), or 10 metres of 'slinky' coiled pipe per kW, with at least 5 metre distance between trenches with coils.

Is geothermal cheaper than natural gas?

A geothermal heat pump uses electricity. In a lot of areas around the country, natural gas costs are very low. It is much cheaper to operate a natural gas furnace than to rely on an electric furnace. Basically, geothermal heating costs are going to be as good and often better than what a gas furnace can produce.

How long does it take to install geothermal energy?

The usual amount of time needed to install a horizontal loop configuration, which requires shallow trenches, is a mere one or two days. A vertical loop configuration is more at the mercy of ground conditions, but most will take two days, possibly three.

What are the pros and cons of geothermal energy?

Geothermal Energy Pros and Cons
Pros Cons
Efficient (300- 500% compared to 90% of the best furnaces). Electricity is still needed to operate heat pumps.
Geothermal energy is a renewable resource as long as the Earth exists. Geothermal energy using wells requires an incredible usage of water.

Does geothermal save money?


Numbers from US Environmental Protection Agency (EPA) show that homeowners save 30-70% on heating and 20-50% on cooling costs by using geothermal heat pumps compared to other conventional systems. This translates to roughly $400 to $1,500 annual savings.

How much is a 3 ton heat pump?

Unit Prices Sorted by the Heat Pump System Size
Heat Pump, Fan Unit, Heat Strip Complete System Complete System Installed
3 Tons, 1200cfm, 7kw $1,830 $4,550
3.5 Tons, 1400cfm, 10kw $1,875 $5,110
4 Tons, 1600 cfm, 10kw $1,995 $5,740
5 Tons, 2000cfm, 10kw $2,215 $6,890

Is geothermal energy cheap?

Geothermal energy is the cheapest form of clean energy out there, with wind energy a close second – and both could become cheaper than fossil fuel-fired energy if governments will direct more research funding to them. The United States got about 2800 megawatts of geothermal energy in 2006, or 0.3 percent of the total.