Can You Install a Heat Pump in a Portuguese Apartment?
Yes — and thousands of apartment owners across Portugal already have. Heat pumps are not just for houses with gardens. Modern systems are designed specifically for apartment living, with compact indoor units and whisper-quiet outdoor components. The key is choosing the right type of system and navigating the condomínio (condominium) process correctly.
Understanding Condomínio Approval
This is the single biggest concern for expats living in Portuguese apartments, and understandably so. Here’s what you need to know:
- What requires approval: Any installation that involves mounting equipment on shared areas — the building façade, rooftop, communal corridors or shared balconies — requires a vote at the condomínio assembly (assembleia de condomínos).
- What may not require approval: A fully indoor monobloc heat pump (such as a thermodynamic AQS system) that doesn’t modify shared spaces typically does not need condomínio consent. However, it’s always advisable to check your building’s specific regulations.
- The approval process: You (or we, on your behalf) submit a written proposal to the building administrator (administrador). This is then voted on at the next assembly meeting. A simple majority is usually sufficient, though some buildings may have stricter rules.
- We handle the paperwork: We prepare the formal request in Portuguese, including technical specifications, noise data and visual impact information. This significantly increases your chances of approval.
Noise: Keeping Your Neighbours Happy
Noise is a legitimate concern in apartment buildings. Portuguese regulation (Regulamento Geral do Ruído, Decreto-Lei 9/2007) sets noise limits for residential areas. The good news:
- Modern heat pump outdoor units operate at 35–50 dB — quieter than a typical conversation (60 dB) or a refrigerator (40 dB).
- Night-mode settings reduce noise even further, typically to 30–35 dB.
- Proper installation with vibration dampeners and correct placement minimises sound transmission to neighbouring apartments.
- Our certified technicians know exactly how to position units to comply with Portuguese noise regulations and avoid complaints.
Best Heat Pump Options for Apartments
Option 1: Monobloc AQS Heat Pump (Hot Water Only)
The most popular choice for apartments. This is a single, self-contained unit that sits inside your property — typically in a utility area, laundry room or kitchen alcove. It draws air from the surrounding room to heat a built-in water tank (usually 200–300 litres). No outdoor unit required.
- No condomínio approval needed in most cases
- Installation in half a day
- Typical cost: €1,500–€2,800 installed
- Cuts hot water bills by 60–75%
Option 2: Split System (Hot Water + Heating)
A split system has an indoor unit and a small outdoor unit (typically mounted on the balcony or façade). This option provides both hot water and space heating. It’s more versatile but does require condomínio approval for the outdoor unit.
- Provides both hot water and central heating
- Outdoor unit can be mounted on balcony, façade or rooftop
- Typical cost: €4,000–€8,000 installed
- Ideal for apartments that need year-round comfort
Option 3: Thermodynamic Panel System
A thermodynamic system uses a small, lightweight panel (similar in size to a solar panel) mounted on the roof or façade, connected to an indoor water tank. It’s extremely quiet and visually discreet — making it an excellent option when condomínio aesthetics are a concern.
Not Sure Which System Suits Your Apartment?
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Get Free QuoteSpace Requirements
Portuguese apartments vary enormously in size and layout. Here’s a rough guide to space requirements:
| System Type | Indoor Space Needed | Outdoor Space Needed |
|---|---|---|
| Monobloc AQS | Approx. 60 × 60 cm floor area, 1.5–2 m height | None |
| Split System | Small wall-mounted indoor unit | Approx. 80 × 30 cm (balcony or wall) |
| Thermodynamic | Water tank (similar to monobloc) | One small panel (approx. 1.5 × 0.8 m) |
Energy Savings in Apartments
Portuguese apartments are typically smaller than houses, which means your heating and hot water demands are lower — and the savings from a heat pump are proportionally higher. A typical 2–3 bedroom apartment in Lisbon or Porto can expect:
- Hot water savings: €300–€500 per year compared to an electric boiler; €150–€300 compared to gas.
- Heating savings: €400–€800 per year compared to portable electric heaters.
- Payback period: 3–6 years for an AQS system; 5–8 years for a combined system (before subsidies).
Frequently Asked Questions
I rent my apartment. Can I still install a heat pump?
You’ll need your landlord’s written permission. If the landlord agrees, the condomínio approval process is the same. Some landlords are happy to invest in a heat pump as it increases the property’s value and energy rating.
Will a heat pump work in an old Portuguese building?
Yes. Older buildings may benefit even more from a heat pump, as they tend to have poorer insulation and higher energy consumption. The installation may require some adaptation, but our technicians are experienced with all types of Portuguese construction.
How long does installation take in an apartment?
A monobloc AQS system can be installed in 3–5 hours. A split system with an outdoor unit typically takes 1–2 days, including any necessary drilling and pipework.