ground / water heat pumps
Thermia ground-to-water heat pumps extract heat from a borehole or a horizontal ground collector via an antifreeze fluid and heat the heating water up to 65 °C. The range extends from compact LEGEND, CALIBRA E and ATLAS units, mostly with a built-in 184 l stainless steel hot water tank, to MEGA S, M and L with an output of up to 59 kW.
Bestsellers
Product sorting
List of products
Inverter ground/water heat pump Thermia BW ATLAS 12 DUO with output 3–12 kW in a...
Inverter heat pump Thermia CALIBRA E 16 for heating and DHW from a borehole or...
Inverter heat pump Thermia CALIBRA E 8 for heating and DHW from a borehole or...
Inverter heat pump Thermia CALIBRA E COOL 12 extracts heat from a borehole or...
Compact ground/water heat pump Thermia with built-in stainless steel DHW tank of...
Inverter ground/water heat pump Thermia MEGA L for larger buildings and commercial...
Inverter ground/water heat pump Thermia MEGA M for larger buildings and commercial...
Inverter ground/water heat pump Thermia MEGA S for larger buildings and commercial...
Inverter ground/water heat pump Thermia MEGA S-E for larger buildings and...
Premium inverter ground/water heat pump Thermia BW ATLAS 18 with output 4–18 kW...
Listing controls
Ground / water heat pumps
IVAR.HP BW LEGEND, IVAR.HP BW LEGEND DUO
IVAR.HP BW ATLAS, IVAR.HP BW ATLAS DUO
IVAR.HP BW CALIBRA ECO, IVAR.HP BW CALIBRA ECO DUO
IVAR.HP BW CALIBRA, IVAR.HP BW CALIBRA DUO, IVAR.HP BW CALIBRA COOL
IVAR.HP MEGA
Frequently Asked Questions
- Which lines of ground source heat pumps do you offer? IVAR.HP BW LEGEND, BW ATLAS, BW CALIBRA (including ECO and DUO versions) and the industrial IVAR.HP MEGA with output up to 59 kW.
- Do I need a borehole or is a horizontal collector enough? Both are possible, the choice depends on the available plot area and geological conditions - the design of the ground collector/borehole is handled separately by the installation company.
- What is the difference between the DUO and standard version? The DUO version includes a built-in domestic hot water tank in the same cabinet as the pump, saving space in the boiler room.
