EMi ground source heat pump

Flexible choice for geothermal heating

Compact solution even for a large home


Part of the Oilon and Lämpöässä geothermal heat pump range, EMi series of heat pumps is suitable for locations requiring a higher heating capacity. The heat pumps have been awarded the best A+++ energy classification. EMi heat pumps are typically used in large single-family homes, terraced houses, industrial locations, and farms. AN EMi geothermal heating system connects to a separate storage tank, and it is easy to integrate with a solar collector or other external heat source. If more capacity is required, you can connect several EMi heat pumps in parallel.

By adding ÄssäCooling units into the system, you can provide your building or property with (apartment-specific or shared) cooling, increasing its value. The heat pump’s ÄssäControl system even allows the system to utilize waste heat from different active cooling and refrigeration solutions used in agricultural applications (such as manure lane cooling) and other fields.



  • Safe choice: Time-tested quality with excellent Finnish craftsmanship.
  • Maximize your savings with unique technology: The system can simultaneously provide heating and produce domestic hot water exclusively with geothermal energy all year round.
  • Flexible and compact: EMi heat pumps are easy to transport, and they adapt flexibly to even the most demanding needs.
  • Control for several heating circuits: Split different areas (such as wet areas) into their own zones for temperature control, or control your domestic hot water circuit. Optional accessory.
  • Easy-to-use and clear control system: Designed in Finland, the ÄssäControl system provides a clear interface for heating control anywhere. The system has extensive support for a multitude of active cooling applications.
  • Extensive scope of delivery: Thanks to the extensive scope of delivery, installation is quick and easy. The units come with built-in circulation pumps.

Applications: buildings up to 800 m²


Extensive control and management system


The ÄssäControl system used in EMi heat pumps has a clear touch screen with versatile function shortcuts, making it easy to control your heat pump. If required, you can even monitor and control your heat pump with a mobile device. Remote control is provided as an option.

To read more about ÄssäControl, download our brochure:


Or watch the video:


Ask for a quotation!




Request for quotation

Please fill out the information below.
Heat pumps are dimensioned and priced individually according to the installation site.
We will contact you and you will receive a quotation from us or our reseller.

Sales contact information

Aarnio Markus

Markus Aarnio

Sales Manager
p. 044 7576 411

Laaksonen Mikko

Mikko Laaksonen

Sales Manager
p. 044 7576 288

Petri Virta

Export Director,
Ground Source Heat Pumps
p. 044 7576 259