Marine and ground source heating When you have a lot of land or water

Did you know that the ground you walk on and the lake you swim in could be your next renewable energy source?
Produce your own energy with a lake and ground source heat pump.

2026-03-19

Lake Source Heating – Complete Guide to Technology, Installation and Costs

Lake source heating is a heating solution for properties with access to a lake or large body of water. By using the energy stored in the water, it is possible to create a stable and efficient heating system – under the right conditions. In this guide, we explain how lake...

2022-12-13

Five benefits of switching to a new heat pump

Have you moved to a house with an older heat pump and are thinking about switching to a newer version? Here, we list five benefits of today's heat pumps compared to older models of heat pumps.

2024-06-25

Heat pump — how much you can save

Better economy is the main reason why more and more people are opting for heat pumps. We've provided some approximate prices and approximate percentage savings here — though it all depends on how and where you live.

GROUND SOURCE HEATING

"It's convenient to have ground soruce heating"

- The heat pump takes care of itself, I am very satisfied, says Robin Linnér.

Ground source heating - a buying guide

Do you have plenty of land? Do you want low-cost heating, water and cooling from a renewable energy source? Then ground source heating is your obvious choice.

How much you save with a heat pump

Heating and hot water cost money. With a lake or ground source heat pump, you can save around 70-75%.

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CTC 100 YEARS

Frequently asked questions about marine and ground source heating

How much does it cost to install ground source heating?

CTC has a large number of ground source heat pumps with different list prices and suitable for different types of households. In total, there are 17 models and sizes.

One thing that affects the price a lot is what the installation costs. The cost of drilling the holes for the ground source heat pump differs between different municipalities. It depends, among other things, on the quality of the rock and whether one hole is enough or whether you have to drill two. Therefore, it is good to contact an installer to find out your specific conditions together. You can find your nearest installer here.

There is something wrong with my heat pump, what should I do?

When it comes to service and warranty issues, you should primarily talk to your installer. The installer is the one who knows your particular heating system and can give the best advice.

How do I reduce or increase the heat in my house with CTC products?

The temperature of your home is a key element in providing you with the comfort you desire. Using the house's heating curve, you can easily meet your temperature needs.

There are two values that determine the temperature, the slope of the curve and the curve adjustment. The installer will help you set these values. If you need to adjust later, you can use the following method:

If it is too cold indoors:

# If the outdoor temperature is lower than zero degrees: increase the value at curve inclination a few degrees. Wait a day to see if further adjustment is needed.

# If the outdoor temperature is higher than zero degrees: increase the curve adjustment value by a couple of degrees. Wait a day to see if further adjustment is needed.

If it is too hot indoors:

# If the outdoor temperature is lower than zero degrees: decrease the value at curve tilt a couple of degrees. Wait a day to see if further adjustment is needed.

# If the outdoor temperature is higher than zero degrees: decrease the value at curve adjustment by a couple of degrees. Wait a day to see if further adjustment is needed.

How old is my heat pump?

Information on the age of your CTC product can be found in the serial number. The four middle digits indicate the year and week, e.g. the product 7310-1304-1212 was manufactured in week 4 of 2013.

And how do you find the serial number? It is located in different places depending on the product.