All in one CO₂ Heat Pumps.
Cut energy use by up to 60 percent.

For industry, hospitality, healthcare and public buildings. Heating, cooling and hot water, all at once.

Globe icon with a star

Proven across Norway

Mountain peak with a star

Third-party verified EPD

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Cooling Post

“A world first in CO₂ heat pump technology.”
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EnergiAktuelt

“Award-winning zero-emission energy system”
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Natural Refrigerants

“Cutting district heating consumption by 36%”

Aqua series

Proven through the coldest winters and the most extreme summers. Decades of CO₂ engineering.

One unit heats through winter and cools through summer, no equipment swap needed. Built by engineers who have run CO₂ systems for decades.

  • • Supply temperatures up to 90°C
  • • Preconfigured
  • • Remote access and monitoring with 5G and Ethernet
  • • Cooling, heating, and domestic hot water simultaneously

2.015.000,000

kWh saved.

Equivalent to the energy consumption of ~487.5 European homes per year.

34.300,000

kg CO₂ reduced.

Equivalent to the annual CO₂ absorption of ~1,749 trees.

Feel the comfort.

One unit handles it all, in any climate: heating, cooling and hot water together.

Feel the precision.

Every unit is tuned by engineers with years of hands-on CO₂ experience.

References.

Indoor swimming pool with water slides reflected in the waterPublic buildings

Ado Arena

Cut pool heating energy use by 30 to 60% through the coldest winter in 20 years.

Green plants under the glass roof of a greenhouseIndustry

Statkraft, Meråker,

Three units in a greenhouse, COP 4.8, around 750 tonnes of CO₂ avoided per year.

Backed to scale.

Tequs is backed by Eviny, Momentum, Kongsberg Innovation, StartupLab and Hafslund, alongside a 1 MEUR Research Council grant. Our sales pipeline has grown 7.5x in twelve months, with €15M in active deals.

The goal is straightforward: take the platform from Norway to Europe and the US, and make burning obsolete as the way the world makes heat.

  • Eviny company logo with circular symbol
  • Hafslund company logo with wave symbol
  • STARTUP LAB text logo
  • Kongsberg Innovation logo
  • Momentum Partners logo

Recognition.

A world first in CO₂ heat pump technology

Tequs becomes the first manufacturer to achieve Ecodesign certification for high-temperature, water-to-water CO₂ heat pumps.

Cutting district heating consumption by 36%

A Tequs CO₂ heat pump combined with hybrid solar panels is helping AdO Arena produce approximately 700,000 kWh of thermal energy annually.

Award-winning zero-emission energy system

Tequs heat pumps are at the heart of Norway’s first zero-emission energy system for greenhouse production.

Key features.

Supply temperatures up to 90°C.

High enough to replace a fossil boiler outright, with no electric top-up needed to reach the last degrees.

Latest news.

World's first EcoDesign certification for high-temperature CO₂

See how we compare.

ComparisonTequsTraditional CO₂Normal Refrigerants
StandardisedYesNoYes
High supply temperatureYesYesNo
High return temperatureYesNoNo
CompactYesNoYes
Cooling, heating, and domestic hot waterYesNoNo
Unique capacity regulationYesYesNo
Low climate impactYesYesNo
Non PFASYesYesNo
Non explosive or flammableYesYesNo

Swipe the table sideways to see all columns.

Frequently asked questions.

A few of the questions we get most before switching to Tequs.

The Aqua series covers 30 to 280 kW per unit, and units can be combined in parallel from 17 kW up to 2.5 MW. This makes it suitable for anything from a hotel or public pool to large industrial or healthcare facilities.