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Category: Yleinen

Yleinen

With geothermal heat, costs are controlled and bills are predictable

24.11.2022 : Anni

A geothermal heat pump was chosen for the detached house in Naantali due to the predictability of heating costs and the sufficiency of hot domestic water.

Mirka Aittola and Riku Saarela thought they would never build a house. But that’s just how they have been living with their 6- and 2.5-year-old sons in a log house they built themselves in a new small house area in Naantali since the end of May.

It is a unique Kontio log house designed by architect Jouni Berg, with a total living area of ​​174 square meters and the house also includes a 30 square meter loft.

Riku Saarela built the family house in Naantali by hand with his father.

The couple has changed their minds about housing once before.

When the large two-bedroom apartment in the center of Turku became small five years ago due to the addition of a family, the family did not want to buy a detached house and definitely wanted to stay in Turku. Be that as it may, they ended up purchasing a single-family house built in 2014 in Merimasku in the Naantali archipelago. When the younger son started wanting a room of his own, Mirka and Riku started looking for a new home closer to the center of Naantali.

– None of the ready-made detached houses really caught us, Riku recalls.
Little by little, the couple got excited about building a detached house, and it was also clear that they didn’t want to move away from Naantali.

Individually designed

Mirka and Riku fell in love with Kontio’s Glass House, but in a slightly modified version. In the end, Riku’s friend Ville Hänti, who works as Kontio Turku’s regional salesman, pointed out that the architect’s plan should be implemented as an individual object.

The construction of the house started with earthworks in the beginning of 2021. There used to be a large pit on the plot, possibly from the Tammisto Brick Factory that was located in the area between 1904 and 1944. The pit was dug one meter deeper and a total of 2,700 tons of ore was brought over. At its thickest, the quarry layer is three meters long.

When the building crew finished their work, Riku and his father were left to fend for themselves. Building is in Riku’s bloodline. Even his grandfather was a carpenter and a lumberjack. In addition to his own work, Riku’s father built two houses for his family and many for others as well. Riku has helped with the installation of the bituminous ceramic roof since he was a kid.

Carefree warmth

First, the interior surfaces were completed in the technical space located in the hall of the house, because the Jämä Star RST Inverter geothermal heat pump that heats the house and its domestic water had to be installed there. The device has a speed-controlled inverter compressor that automatically adjusts to meet the power needs of the house and domestic water. Thanks to it, optimal efficiency is achieved all year round.

The geothermal heat pump is located in the everyday technical space of the house.

The device’s annual efficiency SCOP is a whopping 5.4. The volume of the integrated stainless steel hot water storage tank is 180 liters.

Mirka and Riku ended up with geothermal heating largely based on the experiences of the previous house. Getting the exhaust air heat pump adjustments right was laborious and you couldn’t count on enough hot water.
– The worst thing was the unpredictability of the electricity bills. In the summer, the electricity bill could be 100 euros per month, but in the cold winter months it jumped to 400 euros.
Riku compared different forms of heating on Motiva’s website and the perception of the superiority of geothermal heat was strengthened. What excited me the most about the ground source heat pump was the uniformity of the consumption of electrical energy, regardless of the season.

Riku compared the bids sent by local operators with the master in charge of his project.
– The Jäspi solution offered by Kaarina’s Lämpö Nurmi Oy was already perfect during the bidding phase. Everything was already thought out. The person in charge also praised that a well-thought-out offer guarantees that there will be no surprises.
The price was also right.

One of the good aspects of the geothermal heat pump is also the silence, which brings living comfort.

The only change to the offer was the abandonment of a separate hot water heater, as it would not have fit in the compact technical space in addition to the Jäspi Buffer buffer heater required for underfloor heating.
– However, the seller assured us that we will be fine with the device’s internal 180-liter storage tank, as it is enough for the needs of a family of five.

After drilling a 180-meter deep energy well and installing the system, the geothermal heat pump was turned on in December 2021.
– The electricity consumption figures on Naantali Energia’s website are quite difficult to look at. After the geothermal heat pump was started and the blowers were blown, electricity consumption literally collapsed, Riku laughs.

An excellent purchase

When the family begins to have living experiences for half a year, the geothermal system has already had time to show its ingenuity. Warm water has been abundant. Of course, underfloor heating has not been needed in the summer season other than in damp rooms.
– I just checked on our electricity company’s website that our total consumption has been around 1000 kW per month. The lion’s share of it comes from the heating of Novitek’s hot tub, which is kept at full power, Riku says.

The family was able to move to their new home in Naantali in May.

In winter, the reserve fireplace in the living room is also put into regular use. Mirka praises the peace of mind brought by the predictability of the monthly expenses of the geothermal heat pump. The couple’s electricity contract is still very affordable for a while.
– The geothermal heat pump is also incredibly quiet, Mirka adds.
The device is in the hallway behind the sliding doors and is not soundproofed in any way. Still, you can’t hear its running sound – unlike the exhaust air heat pump in the previous home.

Mirka Aittola and Riku Saarela ended up with geothermal heat in their new house after comparing different forms of heating.

Mirka and Riku are sure that they will live in this house for the rest of their lives. There is no need to build a new one, even though the construction project was not that difficult.
– We were together a lot, laughed and fought, Riku recalls.
– We finished the house and we are still together – many experiences richer!

Filed Under: Yleinen

Support options for changing the heating system

19.4.2021 : Anni

Various subsidies are available for heating renovation, both for a detached house and a larger property. In the support jungle, it can easily get confused about the options, so we put together a list of different forms of support to support decisions. Below is a brief summary of the most important things about each form of support.

ELY Centre’s support for those who give up oil heating

  • Oil heating must not be left even as auxiliary heating
  • EUR 4000 when switching to an air-to-water heat pump, a ground source heat pump or district heating
  • EUR 2,500 when switching to other non-fossil forms of heating
  • You are not eligible if you are applying for a household allowance or other allowance
  • Searched on the basis of a cost estimate, obtained when the contract is paid for
  • Nearly 11,000 applications for the autumn 2020 grant, € 10 million in additional funding for 2021
  • Apply through the ELY Center: Avustus pientalon öljylämmityksestä luopumiseksi – ely – ELY-keskus (ely-keskus.fi)
  • You can get an offer and a cost estimate from our dealer: Missä sijaitsee lähin Jäspi-jälleenmyyjäsi? Etsi täältä. (jaspi.fi)

ARA energy subsidy

  • 4000 or 6000 euros (per apartment)
  • Mainly suitable for condominiums
  • Oil heating may be left as a form of auxiliary heating
  • An energy calculation is required, which is commissioned by an expert
  • Often requires other measures to improve energy efficiency
  • Aplied through ARA: www.ara.fi

Household deduction

  • 4500 euros for a couple, 2250 euros a year for a single person
  • The deduction is only available for the share of the work commissioned, not for the equipment
  • May be the most profitable option when switching to geothermal
  • Applied through the tax administration: www.vero.fi

ARA subsidy for special groups

  • For homeowners over the age of 65 and disabled
  • For repair or replacement of broken or end-of-life heating systems
  • Half of the renovation costs for low-income applicants over the age of 65 will be reimbursed
  • Applied through ARA: www.ara.fi

Also remember the Jäspi Funding Opportunity

  • Jäspi Heating funding can be obtained even if you apply for the above-mentioned subsidies
  • Funding 1000-30 000 euros
  • Application: https://jaspi.fi/rahoitus/

More information from Motiva: Öljylämmityksen vaihtajalle – Motiva

Filed Under: Yleinen

Should your family also take part in climate talks

19.4.2021 : Anni

Housing produces a third of the average Finn’s carbon footprint. The most significant effect is how you heat the house and hot water. Even an old house can be lived ecologically without wasting energy.

[Read more…]

Filed Under: Yleinen

The air-to-water heat pump upgraded the house to a new condition

8.4.2021 : Anni

The new Jäspi air-to-water heat pump cut the heating costs of a detached house by less than half – and there is not an inch compromised on living comfort.

[Read more…]

Filed Under: Yleinen

The Laaksonen family exchanged oil for geothermal energy

7.4.2021 : Anni

In Ihala, Raisio is a beautiful oil-heated detached house completed in 1991, where the five-person Laaksonen family lives. However, the oil boiler was already coming to an end, so it was time for new solutions.

[Read more…]

Filed Under: Yleinen Tagged With: heat pumps

This is how much a condominium can save by heat recovery

26.3.2021 : Anni

Thanks to the JÄSPI heat recovery system, the Turku-based housing company has saved EUR 34,000 in energy costs in a couple of years. A renovation that lasted only two months will pay for itself in less than seven years. Watch the video!

[Read more…]

Filed Under: Yleinen

Air-to-water heat pump to get rid of direct electric heating

22.2.2021 : Anni

Replacing electric heating with an air-to-water heat pump brings clear savings in energy costs

When direct electric heating is replaced by an air-to-water heat pump, a large saving in energy costs is created. In Tero Välimaa’s large house in Kangasala, energy costs will fall by as much as 30 percent. Living comfort also improved significantly.

When leaving for the trip in the autumn of 2019, Tero Välimaa did not guess that there would be a quick move when he came back. The detached house put up for sale had found its buyer and it took two months to find a new home.

A plumbing, electrical and construction entrepreneur might have thought of building an entirely new house, but of course with just such a schedule, it didn’t work out.

Fortunately, there was a familiar house for sale nearby, right in the center of Kangasala. Designed by an architect, the impressive manor house, completed in 1986, was well built. – My father installed electricity at that time, Tero Välimaa says.

The space in the house is 180 square meters in the living floor and basement. That’s more than enough for Tero Välimaa, his wife Heli Jalander and two dogs. The family’s four adult children have already moved into their own.

Direct electric heating needed a replacement

Instead of building a new house, Tero Välimaa was preparing for a thorough renovation project: the renewal of surfaces and building technology, as well as the renewal of the heating and heat distribution system.

Structurally, the house was fortunately in excellent condition and, for its age, better insulated and dense than usual. The basement floor is located underground except for one wall and a total of 50 centimeters thick styrox-insulated ingot walls retain heat well. The upstairs façade had 220 miles of insulation and the upper floor hard wool 350 miles.
– When installing the IV ducts, I added the same amount of blown wool to the top floor, Tero says.

Tero Välimaa started renovating the house from building services systems. The house needed mechanical ventilation with heat recovery. The electricity his father had previously installed in the house for the previous owner had to be renewed.

A decision had also to be made regarding the method of heating.

The house had direct electric heating, as is common in houses built in the mid-1980s. An additional heat source upstairs is an architectural storage fireplace.

However, given how large the building is, it wasn’t quite a terrible heating electricity surge.
– According to the previous owner, about 20,000 kWh of electricity had been consumed annually, Tero says.

Of course, direct electric heating is not economical, let alone environmentally friendly – especially in a large house. Old electric batteries also started to be near the end of their service life anyway.

An air-to-water heat pump proved to be the best option

Over the years, Tero Välimaa has sold a couple of hundred geothermal pumps to its customers, so it would have been natural to buy a similar one for your own home. However, drilling an energy well in a house next to a ridge is not a cost-effective solution.

An air-to-water heat pump is a natural alternative to a ground source heat pump. After researching the devices on the market, Tero Välimaa ended up with Jäspi Tehowatti Air, which has MyUpway remote monitoring as standard.

-The device is really efficient. Under good conditions, its efficiency (COP) is close to five. Our system includes a Jäspi Split 12 kW outdoor unit, an indoor control unit and a Jäspi additional watt electric boiler, which ensures that there is enough heat even in severe frosts.

The indoor unit of the device is only 1.8 meters high, which is a good thing when it is fitted in a low basement space. The built-in accumulator holds 215 liters of water, which is enough for hot water.

– However, two adults no longer need very much hot water, Tero laughs.

– By the way, a 15-year-old Jäspi water heater went out of the basement for cottage use. It was still in perfect condition, he glows.

The major renovation went well due to the great help of the host

Carrying out an energy renovation in a large house requires quite a bit of scheduling and adaptation if you have to live in the middle of it. Even if circulating underfloor heating had been the number one choice for living comfort, it did not make sense to install it.

As a professional in the field, Tero did most of the work himself. After removing the radiators, routes had to be drilled through the vault for the heating line pipes. In the basement ceiling, the composite pipes were intentionally left uninsulated.

The rest of the contract was carried out by entrepreneur Sami Lehtinen from SL-Putki Oy.

– In terms of plumbing, of course, the project was easy when the customer did a lot of preparatory work as agreed in advance. Actually, the only challenge was to fit the heat pump piping into a small space, Sami Lehtinen says.

Significant savings are coming in energy costs

The Air-to-Water Heat Pump was launched at the beginning of October 2020, so Tero Välimaa has only a short experience of its new heating system. Even with conservative estimates, he believes he will save about 30 percent on heating costs in the long run.

More joy from the renovation has already been gained.
– I noticed after only one month of use that the heat in the living space is pleasantly even. The comfort of living thus improved. And even if we renovate the house as the home for the rest of our lives, it is nice to know that after such an investment, the resale value of the house has also improved tremendously, Tero sums up.

Filed Under: Yleinen

Air-to-water heat pump: the whole package or alongside the old heating?

28.12.2020 : Anni

The air-to-water heat pump has become a great favorite of Finns. The device is efficient, inexpensive and quick to install, and it reliably takes care of both the heating of the house and the production of hot water. An air-to-water heat pump saves the environment and euros by cutting up to 60 percent of the heating bill compared to electric or oil heating.

[Read more…]

Filed Under: Yleinen

Energy-efficient and ecological geothermal won the pound of heating systems

28.12.2020 : Anni

The Turku-based family chose a modern ground source heat pump for their detached house, which always runs at optimum efficiency. This helps to save electricity and prolongs the technical life of the pump.

[Read more…]

Filed Under: Yleinen

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Blog

  • With geothermal heat, costs are controlled and bills are predictable
  • Support options for changing the heating system
  • Should your family also take part in climate talks
  • The air-to-water heat pump upgraded the house to a new condition
  • The Laaksonen family exchanged oil for geothermal energy

Contact info

Kaukora Oy
Tuotekatu 11, 21200 Raisio, FINLAND
www.jaspi.fi/en
kaukora@kaukora.fi
phone +358 2 4374 600
Switch mon-fri 8-16

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    • District heating
  • Products
    • Air-to-water heat pumps
    • Ground source heat pumps
    • Water heaters
    • Electric boilers
    • Solar heaters
    • Pellet boilers
    • Larger properties
  • References
  • Kaukora
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