Otso
HEATING & COOLING

Efficient air conditioning and a heat pump in one

Modern heat pumps deliver efficient heating in winter and cooling in summer. Over 300% efficiency means minimal running costs and maximum comfort. Combine it with a solar park and heat/cool almost for free.

WHY A HEAT PUMP

One solution for heating and cooling

A heat pump is the most efficient way to heat and cool your home. One device, two functions, year-round comfort.

High efficiency

Over 300% efficiency — for every unit of energy used, you get 3+ units of heat or cooling. Much more efficient than gas or direct electric heating.

Heating + cooling

One system covers both heating in winter and cooling in summer. No need for two separate systems — a heat pump does both.

Lower environmental impact

Zero CO2 emissions at the point of use. When paired with a solar park, it becomes a 100% clean, renewable heating and cooling solution.

Low running costs

Heating and cooling costs can drop by up to 70% compared to a gas boiler or electric heating. The investment typically pays back in 5–8 years.

Total comfort

Ideal temperature all year round. Smart thermostats and apps let you adjust your indoor climate remotely.

Boosts home value

A modern heating system increases property value and improves energy rating. Buyers appreciate low running costs and eco-friendly solutions.

INSTALLATION PROCESS

Fast, high-quality installation

Our experienced team installs your heat pump quickly and professionally. Full service from consultation to commissioning.

01

Consultation

We assess your home, heating needs, and preferences. We recommend the best solution and prepare an accurate quote.

02

Design & permits

We create a precise project and handle permits. All required documents and approvals are on us.

03

Installation

We install indoor and outdoor units, connect piping and electrics. Professional work with full testing included.

04

Commissioning

We start the system, set optimal parameters, and train you for daily use. Done.

HEAT PUMP TYPES

Choose the solution that fits you

We offer different heat pump options depending on your home type, heating needs, and budget. All systems are high quality and built to last.

POPULAR

Air-to-air heat pump

The most popular and cost-effective choice. Quick installation and no need for underfloor heating. Ideal for renovations and apartment buildings.

  • COP 3.5–4.0 (300–400% efficiency)
  • Heating + cooling
  • Fast installation in 1–2 days
  • WiFi and smart thermostats
QUALITY

Air-to-water heat pump

Works with existing radiators or underfloor heating. Also provides hot water. Ideal as the main heating system for a home.

  • COP 3.0–3.5 at low temperatures
  • Hot water + heating
  • Suitable for radiators
  • Year-round use
MOST EFFICIENT

Ground-source heat pump

The most efficient solution. A stable heat source year-round. Ideal for new builds and larger homes.

  • COP 4.0–5.0 (400–500% efficiency)
  • Lowest running costs
  • Long lifespan 25+ years
  • Pays back in 8–12 years
FEATURES

Smart and comfortable solutions

Modern heat pumps come with advanced features that make indoor climate control convenient and efficient.

WiFi and mobile app

Control your home temperature from your phone, wherever you are. Track energy use and optimize settings. Full control in your hands.

Smart scheduling

Program different temperatures for morning, day, evening, and night. Automatically save energy when nobody is home.

Solar energy optimization

When combined with a solar park, you can use free solar power for heating and cooling. The smart system optimizes automatically.

Automatic humidity control

Keeps humidity at an optimal level in both winter and summer. A healthy indoor climate and comfort in every season.

HEATING & COOLING COSTS

How much does heating with a heat pump cost?

Heating with a heat pump is significantly cheaper than using a gas boiler or direct electric heating — especially when combined with solar energy.

Grid energy

Simple and affordable — a heat pump runs at over 300% efficiency. For every unit of energy used, you get 3+ units of heat.

  • Electricity price: ~0.08–0.15 €/kWh
  • Heat cost: ~0.025–0.05 €/kWh
  • 150m² home: ~600–900 €/year
  • Savings vs gas: ~800–1200 €/year

~700 € / year

RECOMMENDED

Solar + grid

The best choice — use free solar power during the day and affordable grid energy at night and in winter. An ideal combination.

  • 40% solar, 60% grid
  • Heat cost: ~0.015–0.035 €/kWh
  • 150m² home: ~400–600 €/year
  • Savings vs gas: ~1200–1500 €/year

~500 € / year

Solar + battery

Ideal — with a larger solar park and a battery, you can cover most of your heating needs with renewable energy even in winter.

  • 60–80% own energy
  • Heat cost: ~0.010–0.025 €/kWh
  • 150m² home: ~250–450 €/year
  • Savings vs gas: ~1500–1800 €/year

~350 € / year

* Calculations are based on average prices and a 150m² home's heating demand (~20 000 kWh/year). Gas boiler comparison: ~1.50–1.80 €/year. Actual costs may vary depending on insulation and usage habits.

FAQ

Frequently asked questions about heat pumps

An air-to-air heat pump is best for apartments and smaller homes without underfloor heating. Air-to-water is suitable for houses with radiators or underfloor heating. A ground-source heat pump is the best option for new builds and larger homes — the highest efficiency and the lowest running costs.

Yes, modern heat pumps operate efficiently down to -25°C outdoor temperature. Estonia’s average winter temperature is around -5 to -10°C, which is an optimal operating range for heat pumps. Ground-source heat pumps perform even better because ground temperature stays more stable.

Savings depend on your current heating system. Compared to a gas boiler or direct electric heating, you can save 50–70% on heating bills. For a 150m² home, savings can be 800–1500 € per year. When combined with a solar park, savings may be even higher.

An air-to-air heat pump is installed in 1–2 days. An air-to-water system takes 3–5 days. A ground-source heat pump with drilling takes 5–10 days. The process includes consultation, design, installation, and commissioning.

Modern heat pumps are very quiet. Outdoor unit noise is typically 40–55 dB (similar to a refrigerator). The indoor unit is even quieter, around 20–35 dB. We position the outdoor unit to avoid disturbing neighbors or your sleep.

Yes, most heat pumps also support cooling mode. This is a major benefit on hot summer days — one system provides comfort in both winter and summer. Cooling is highly efficient and affordable.

Yes, pairing a heat pump with a solar park is ideal. During the day, you can use free solar energy for heating or cooling. A smart system automatically optimizes consumption based on solar production. It’s one of the best ways to reduce energy costs.

Start your journey to efficient heating and cooling

Request a free consultation and quote. We’ll help you choose the best heat pump and install it quickly and professionally.