Heat Pump Systems
High-efficiency air-source and ground-source heat pumps for sustainable heating and cooling.
- Air-source heat pumps
- Ground-source systems
- Hybrid configurations
- Smart controls
HVAC Services
Sustainable Climate Solutions
Heat pumps, ventilation, and climate control systems with subscription financing—upgrade without upfront investment.
Complete Climate Control
From heat pumps to ventilation systems, we deliver efficient solutions with flexible financing.
Cooling & Air Conditioning
Climate control solutions for comfort throughout the year.
- Split systems
- VRF/VRV systems
- Chillers
- Precision cooling
Ventilation Systems
Fresh air solutions for healthy indoor environments.
- Mechanical ventilation
- Heat recovery (MVHR)
- Demand-controlled
- Duct systems
Building Controls
Smart HVAC management for optimal comfort and efficiency.
- BMS integration
- Zone control
- Remote monitoring
- Energy optimization
Clear Technical Scope
Practical Execution
Study to Installation
CE-compliant equipment
PEB/EPB project compliance
VCA
RESCERT
KNX Partner
Technical Guide
Can a Heat Pump Work in Your Building?
Whether a heat pump is suitable for a specific building depends on several interrelated factors. There is no single answer—the outcome varies with the building’s characteristics and current installation.
Insulation level
A well-insulated building retains heat more effectively, which reduces the required heat pump capacity and improves overall efficiency. In a poorly insulated building, the heat pump must work harder and longer to maintain comfort, which increases electricity consumption and reduces the practical benefit.
Heat emitters
Underfloor heating operates at low water temperatures, which is ideal for heat pump performance. Radiator-based systems typically require higher water temperatures. Some radiator systems can still work with a heat pump if they are correctly sized, but the seasonal performance will generally be lower than with low-temperature emitters.
Building type and layout
Apartments, houses, and commercial buildings each have different heat loss patterns and structural constraints. Building shape, floor count, exposed surfaces, and orientation all influence how much energy is needed and how evenly it can be distributed.
Current energy source
The existing heating system—whether gas, oil, or electric—determines the baseline energy cost. Switching to a heat pump shifts the energy source to electricity, which has a different price structure. The financial outcome depends on the ratio between current fuel costs and future electricity consumption.
A preliminary online estimate is indicative. It does not replace a project-specific heat loss calculation and system design by a qualified professional.
Heat Pump Subscription
Switch to an efficient heat pump with no upfront investment. One monthly fee covers the system, installation, commissioning, and all maintenance.
Heat Pump Subscription Calculator
Switch to a Heat Pumpwith No Upfront Cost
Our subscription model includes the system, installation, commissioning, and maintenance—all for one predictable monthly fee.
Your Property Details
120 m²
Heating only
Preferred method: more representative than an area estimate
Results
Preliminary area-based estimate
Recommended size
7.3–8.3 kW
Indicative seasonal efficiency assumption (SCOP): 2.6–3.5
Current heating cost
€205/month
≈ 142 m³/month (estimated equivalent)
New heat-pump electricity cost (heating)
€108–€146/month
Investment estimate (HTVA)
€10,113–€11,857
Payback period
11–13 years
(130–152 months)
Estimated savings: €78/month
Included in your subscription
- High-efficiency heat pump system
- Professional installation & commissioning
- Annual maintenance & inspections
- Repair & replacement coverage
- Remote monitoring & support
Final sizing requires a site visit and heat loss calculation by our engineers.
This is a broad preliminary estimate based on building area and simplified assumptions. Final sizing requires a detailed heat-loss calculation.
Actual seasonal performance depends on heat-pump selection, design water temperature, climate and system configuration.
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Transparency
What This Estimate Is Based On
The calculator on this page uses a simplified model to produce a directional estimate. Here is what drives the result:
- 1
The building’s heat loss is estimated from the heated area, a base factor per building type (apartment, house, or office), and an insulation multiplier. This is a broad approximation—not a room-by-room calculation.
- 2
Annual heat demand is derived from the estimated heat loss and a range of equivalent full-load hours that varies by building type. The insulation level further adjusts this range.
- 3
The seasonal performance (efficiency) of the heat pump is modeled as a range that depends on the type of heat emitters. Underfloor heating yields higher seasonal performance than radiators. Poor insulation combined with radiators applies an additional reduction.
- 4
Current heating costs are either entered by the user (annual cost, kWh, or gas m³) or estimated from the calculated heat demand and standard fuel efficiency and unit costs.
- 5
Investment costs are estimated per kW of installed capacity, using a price range. Actual costs depend on the specific equipment, site conditions, and installation complexity.
Because each assumption introduces a margin, the combined result can deviate meaningfully from reality. The estimate is most useful as a starting point for discussion, not as a project budget.
Important Caveats
When This Quick Estimate Is Less Reliable
Certain building situations make a simplified estimate less representative. If any of the following apply, the result should be interpreted with extra caution:
Mixed emitters: some rooms have underfloor heating, others have radiators. The calculator uses a single emitter type for the whole building.
Partial renovation: only part of the building has been insulated or upgraded, leading to uneven heat loss across zones.
Unknown or inconsistent insulation: the actual thermal performance of walls, windows, and roof is not documented or varies widely across the building.
Unusual occupancy or use patterns: high internal heat gains, intermittent heating schedules, or spaces with special climate requirements.
Buildings with extensions, split levels, or non-standard geometries: simplified area-based models do not capture the complexity of the building envelope.
When room-by-room heat loss calculation is needed: for accurate sizing, a qualified engineer should perform a detailed assessment based on actual building plans and conditions.
Illustrative Scenarios
Two Indicative Examples
The following are fictional scenarios intended to show how different building characteristics influence the estimate. They are not based on real projects.
Scenario A: Well-insulated house with underfloor heating
A 140 m² detached house with good insulation and underfloor heating throughout. The current heating system is a gas boiler.
Analysis:
Because the insulation is good and the emitters operate at low temperature, the estimated seasonal performance is relatively high. The calculated heat demand is moderate, and the projected electricity cost for the heat pump is noticeably lower than the current gas bill. The estimate looks favorable in this configuration.
Next step:
The next step would be a site visit to verify insulation quality, confirm the underfloor heating circuit temperatures, and check that the electrical supply can support the heat pump.
Scenario B: Older building with radiators and average insulation
A 180 m² semi-detached house from the 1970s with average insulation and standard radiators. The current system runs on fuel oil.
Analysis:
With radiators and average insulation, the estimated seasonal performance is lower. The heat demand is higher, and the projected electricity cost may be closer to the current fuel oil expense. The financial margin is narrower, and the result is more sensitive to electricity price assumptions.
Next step:
Before proceeding, it would be prudent to assess whether the existing radiators are oversized (which would help), whether insulation improvements are planned, and whether a hybrid approach might be more realistic.
Honest Assessment
Not Every Project Is a Fit
A responsible approach to heat pump projects means acknowledging that not every building is immediately suitable for the same solution.
In some cases, upgrading heat emitters (for example, replacing undersized radiators or adding underfloor heating in key zones) is a prerequisite for acceptable heat pump performance.
In others, insulation improvements should come first, because installing a heat pump in a poorly insulated building will result in high electricity consumption and limited comfort gains.
Staged renovation—addressing insulation and emitters before or alongside the heat pump installation—is often more realistic than a single-step switchover.
The goal is a technically coherent solution that performs well over its lifetime, not a generic recommendation.
If the preliminary estimate raises questions, that is a useful signal. A detailed assessment will clarify whether and how a heat pump fits into your building’s specific context.
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