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Keeping the House Cozy in Lapland's Freezing Winter with an Air-to-Water Heat Pump

Rural 1940s holiday home in Lapland, installed Daikin Altherma 3 H HT air-to-water heat pump, benefiting from Onecta app remote access

CHALLENGE: KEEPING THE HOUSE WARM… FROM A DISTANCE

For the inhabitants of Lapland, that ruggedly beautiful northerly region of Finland, winter is a serious business. Heavy snowfall, dwindling daylight and temperatures that regularly plunge below -30°C mean that keeping warm is never too far from people’s thoughts.

So, when Pepe Vanninen and Laura Leppäjärvi inherited Laura’s father’s house in the village of Enontekiö, they knew they had work to do. Although the house, built in the 1940s, was relatively unscathed by decades of harsh winters, the property still required significant renovation including a new roof – and a new heating system.

Also in the mix was the fact that Laura and Pepe’s main residence is located some 160km from the house, meaning they were not going to be there all the time to operate and maintain the heating – a significant consideration in such a cold climate.

SOLUTION: AIR-TO-WATER HEAT PUMP WITH REMOTE CONTROL

Like other Scandinavian countries, Finland has one of the highest heat pump penetrations in the world (in neighbouring Norway, two-thirds of all households have a heat pump installed) so Laura and Pepe went to their local installer Electric Arctic to find out the best option.

Based on the size of the house (140m sq) and the notorious Nordic conditions, the couple opted for a super-efficient Daikin Altherma 3 H HT air-to-water heat pump. With zero electrical resistance, this model provides heating and hot water at temperatures up to +70°C, with enough power to distribute heat throughout the radiator network.

Meanwhile, to ensure the property benefits from a basic level of heat all year round, their local installer showed Laura and Pepe how to download the Onecta app so they could operate the heat pump remotely – no turning up for the weekend to find the place freezing cold!

Before

RESULTS: BASIC HEAT ALL YEAR ROUND, EVEN IN FREEZING WINTER

Since completing their renovations, Laura and Pepe have found that their new heat pump uses just 300-400 kWh per month to maintain the 140m sq property between 8-12°C during the milder period of the year (September/October), while in the harshest depths of winter, the system uses around 1500 kWh per month.

From their home 160km away, meanwhile, the couple can keep a close eye on the temperature via sensor tags placed around the building. (They can also check on the condition of the outdoor unit using a surveillance camera in the yard.)

In the case of power outages – a fact of life where extreme cold is commonplace – the heat pump simply starts up again, while antifreeze in the water circulation ensures there is no damage to the system even if the indoor temperature falls dramatically.

HOMEOWNER:

“PEOPLE WONDERED, BUT WE HAVEN’T HAD ANY PROBLEMS”

“Some people wondered whether it made sense for us to put an air-to-water heat pump so far north and whether it would be able to keep the house warm, but so far we have not had any problems. Remote control has proven to be an important feature. The cottage is also used by relatives and friends who don’t need to familiarize themselves with the heating system – we can lift the heat into the ‘comfort zone’ with a tap of a mobile phone!”

-        Laura Leppäjärvi, homeowner

Products used on this project

Daikin Altherma high temperature split

Daikin Altherma 3 H HT - EPRA014-018DW

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