💡 Heat pump + hot water cylinder is the most common combination in Irish home energy upgrades. SEAI grants of up to €12,500 available for heat pumps. Apply at seai.ie →
Vaillant · Air-to-Water Heat Pump · Ireland 2026
Vaillant aroTHERM Plus 7 kW — Ireland 2026
German precision — class-leading SCOP 5.20 and the quietest fan at 40 dBA
Uses R-290 (propane) refrigerant — GWP of just 3 versus 675 for R-32. Currently the most energy-efficient heat pump in its class with SCOP of 5.20 at 35°C. At 40 dBA it is the quietest in this directory. The 75°C maximum flow temperature makes it uniquely suited to period properties with large column radiators.
7 kWSCOP 5.2040 dB(A)Max 75°CR-290 (Propane)SEAI grant up to €12,500
⚙️ Specifications
Heating capacity
7 kW
SCOP @ W35 (underfloor)
5.20
SCOP @ W55 (radiators)
3.51
COP A7/W35
5.10
COP A7/W55
3.00
Max. flow temperature
75°C
Operates to
-20°C outdoor
Outdoor noise level
40 dB(A)
Refrigerant
R-290 (Propane)
Hot water cylinder
Not included — required separately
Outdoor unit dimensions
1110 × 1212 × 486
Outdoor unit weight
97 kg
Warranty
5 years
SEAI grant eligible
Yes — €12,500
💰 Pricing & SEAI grant
Typical installed price (incl. installation)
~€14,500
Supply (~€7,200) + installation, commissioning and cylinder
① Heat Pump Equipment Grant (all qualifying installs)− €6,500
② Central Heating Upgrade Grant (if radiators/pipework need upgrading)− €2,000
③ Renewable Heat Bonus (switching from oil / gas / solid fuel)− €4,000
Maximum total grant (houses)− €12,500
Est. hot water cylinder (180L, incl. install)~€1,200–€1,800
Effective cost (fossil fuel switcher, max grant)~€2,000
Grant updated 3 Feb 2026: Increased from €6,500 to up to €12,500. Apartments max €4,500. Replacing an existing heat pump (not fossil fuel): €6,500 max. 9% VAT on supply & installation (reduced from 23% since Jan 2025).
Apply at seai.ie — receive your Letter of Offer before installation begins. BER assessment required (€200 grant available). Homes built before 2007 need a Technical Assessment (€200 grant). Installer must be SEAI-registered. Cannot combine with Warmer Homes Scheme.
Key highlights
🏆
SCOP 5.20 — most efficient in this directory
For every 1 kWh of electricity in, you get 5.20 kWh of heat out on average. The highest seasonal efficiency of any heat pump listed — significantly reduces annual running costs
🔇
40 dBA — whisper quiet
The quietest heat pump in this directory by a significant margin. Neighbours will not hear it — and Irish planning applications for heat pumps in noise-restricted areas are straightforwardly passed
🌿
R-290 propane — GWP of just 3
Propane has a Global Warming Potential 225× lower than R-32 and 2,000× lower than R-410A. The most climate-friendly refrigerant available in residential heat pumps — future-proof as F-Gas regulations tighten
Compatibility note: Yes — up to 75°C (the highest flow temp in this directory). A SEAI-registered heat pump installer will complete a heat loss assessment and radiator compatibility check before installation — this is required as part of the grant process.
✅ What we like
SCOP 5.20 — the most energy-efficient heat pump in this directory
40 dBA — the quietest outdoor unit, quieter than normal conversation
75°C maximum flow temp — the highest in this directory, works with any radiators including column and cast iron
R-290 (propane) refrigerant — GWP of just 3, the most climate-friendly option
Ideal for period properties with oversized radiators
SEAI grant eligible — up to €12,500 (houses, fossil fuel switchers, from 3 Feb 2026)
⚠️ Worth knowing
Premium supply price (~€7,200) — highest alongside Nibe in this directory
R-290 is flammable — requires a certified F-Gas / refrigerant engineer for service
Operates to only −20°C vs −25°C for Mitsubishi Ecodan or Panasonic T-CAP
💧 Compatible hot water cylinders
The aroTHERM Plus 7 kW requires a separately purchased hot water cylinder with a large primary coil (minimum 2.5 m²) to work efficiently at heat pump flow temperatures of 45–55°C. These cylinders are confirmed compatible with Vaillant heat pumps. Browse all cylinders →
💰 SEAI grant covers the cylinder: The cylinder cost is included within the SEAI Heat Pump System Grant (up to €12,500). Cylinders are not individually grant-funded — the grant applies to the total installed system cost.
🧠 Compatible smart energy devices
Smart thermostats and energy management systems reduce heat pump running costs by 15–30% by scheduling operation around cheap electricity, solar generation and occupancy patterns. Browse all smart energy products →
🔋 Pair with battery storage — run your heat pump on solar
The most cost-effective way to run a heat pump in Ireland: pair with solar panels and a home battery. Solar generates free electricity during the day; the battery stores surplus for evening and overnight heat pump operation — reducing your annual electricity bill by 70–85%. Browse all batteries →
💰 SEAI Solar + Battery grant: The SEAI Solar PV Home Grant covers up to €1,800 for solar panel installation. Combined with the heat pump grant (up to €12,500) and the EV home charger grant (€300), the maximum SEAI support for a complete solar + heat pump + EV system is approximately €14,600.
🚗 Complete the picture — add an electric car
A heat pump and an EV are Ireland's most powerful energy saving pair. See all 205+ EVs in the EV Vehicle Directory.
🌡️ Heat pump + EV: Ireland's most powerful energy saving combination
🌡️ Heat pump vs oil
70% cheaper
to heat your home
🚗 EV vs petrol
80% cheaper
per km on night rate
💶 Combined saving
~€3,500/yr
heat pump + EV combined
Add solar panels and your EV charges from your roof for free while your heat pump runs on cheap night-rate electricity. A myenergi Zappi coordinates solar surplus and a Tado V3+ starts the heat pump en route home. View Zappi →
☀️ Pair with solar panels — maximise your SEAI grants in Ireland
A heat pump and solar panels are the most powerful renewable combination available to Irish homeowners today. Your Vaillant heat pump runs entirely on electricity — solar generates that electricity from your roof at zero cost. Both qualify for substantial SEAI grants. See the full Solar Panel Directory for all models available in Ireland.
💰 Combined SEAI grant opportunity — apply together
🌡️ Heat Pump Grant
€12,500
max (incl. bonus)
☀️ Solar PV Grant
€1,800
max residential
🏆 Total available
€14,600
in SEAI grants
How the solar grant works alongside your heat pump grant:
SEAI Solar PV Home Grant (up to 2kWp @ €900/kWp)up to €1,800Heat Pump Equipment Grant (all qualifying homes)€6,500Central Heating Upgrade Grant (if needed)+ €2,000Renewable Heat Bonus (switching from oil/gas)+ €4,000EV Home Charger Grant (SEAI)+ €300Maximum total combined grant€14,600
💡 Apply BEFORE installation begins. Both the Heat Pump and Solar PV grants require a SEAI Letter of Offer before any contractor starts work. You can apply for both in the same process — ask your installer to coordinate a combined application. Also note: 9% VAT applies to heat pump supply and installation (reduced from 23% since 1 Jan 2025).
🌡️ Why a heat pump and solar are the perfect pair: A heat pump runs entirely on electricity — and a solar system generates free electricity from your roof. A typical 4kWp solar system generates ~3,400–3,800 kWh/year. Your Vaillant aroTHERM Plus 7 kW uses ~3,000–5,000 kWh/year for heating and hot water. With both installed, your solar covers a large portion of your heat pump's electricity use — at zero cost. The combination is the highest-savings renewable upgrade available to Irish homeowners today.
The heat pump unit is one component of a complete home heating system. Below is a realistic breakdown of what a full installation in an Irish home typically costs — and what the SEAI grant covers.
What's included in the install
🌡️ Heat pump outdoor unit (supply)
💧 Hot water cylinder (180L) — ~€600–€900
🔧 Installation & commissioning — ~€2,500–€4,000
📋 BER assessment (SEAI grant: €200) — ~€250–€350
🌡️ Controls, piping, wiring — ~€500–€800
⚡ Heat loss & design survey — ~€200–€350
SEAI Grant
After grants
Supply price: ~€7,200
Full install: ~€14,500
SEAI grant (max houses): − €12,500
BER assessment grant: − €200
~€1,800 effective cost
Pair with solar & battery
Solar-powered heat pump — the best combination for Irish energy independence. SEAI grants on both.
⚠️ Grant process reminder: Apply at seai.ie and receive your Letter of Offer before installation begins. Starting work before the Letter of Offer permanently disqualifies the grant. Installer must be on the SEAI registered contractor list.
🏠 Your complete renewable home upgrade
The aroTHERM Plus 7 kW is the starting point of a complete home energy upgrade. Heat pump + solar + battery is the highest-savings renewable combination available to Irish homeowners today — and both heat pump and solar qualify for separate SEAI grants you can apply for together.
🌡️
Heat pump
Vaillant aroTHERM Plus 7 kW — SEAI grant up to €12,500 when switching from fossil fuel
☀️
Solar panels
Run your heat pump on free solar electricity — SEAI solar grant up to €1,800
🔋
Battery storage
Store surplus solar for overnight heat pump operation — cuts grid import by 40–60%
🔌
EV home charger
Charge your EV for free from solar — myenergi Zappi Eco+ mode. SEAI EV Home Charger Grant: €300
💧
Hot water cylinder
Required for air-to-water heat pumps — large-coil cylinders maximise efficiency
💰 Total SEAI grants available: ~€14,600 — Maximum SEAI grants available: Heat pump up to €12,500 + Solar PV up to €1,800 + EV home charger €300 = €14,600 total. Apply at seai.ie before installation begins.
Find SEAI-registered heat pump installers near you
Tell us what combination you need — heat pump only or a complete renewable upgrade. We match you with up to 3 SEAI-registered installers in your area. Free, no obligation.
🌡️ Get matched with local installers
Up to 3 SEAI-registered installers in your area will contact you within 1 business day with system recommendations and pricing.
💶 Get quotes
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De Energy Hub
More power to youTM.
🌾 Built for farms, agri businesses & rural operators
Your heat pump + solar installation is also a charging asset — list it
Agricultural businesses with heat pumps and solar under TAMS III can list their EV charger as a Pure Energy Charging Hub. Rural EV charging infrastructure is in high demand. Self and guest bookings available — book sessions for contractors and visitors automatically.
☀️ Pure Energy🔄 Smart Energy🚀 Boost Energy
☀️
Pure Energy from your solar
Tag your charger as Pure Energy — drivers see it runs on 100% renewable generation from your farm
🤝
Guest & self-booking
Book sessions for contractors or visitors — they're notified and guided through check-in automatically
📸
Photo check-in
Customers upload a photo on check-in or check-out — added accountability for shared rural infrastructure
❓ aroTHERM Plus 7 kW — frequently asked questions for Irish buyers
With a SCOP of 5.20, the Vaillant aroTHERM Plus 7 kW produces 5.20 kWh of heat for every 1 kWh of electricity consumed. For a typical Irish home using ~12,000 kWh of heat per year, the pump needs approximately 2,308 kWh of electricity — at the current average Irish electricity rate of ~€0.38/kWh, that is ~€877 per year. Compare that to a typical oil boiler consuming ~900 litres at €0.90/litre (€1,080/yr). Annual saving: approximately €203. Switching to a Night Saver or smart tariff can reduce heat pump electricity costs by a further 20–30%, improving savings further.
The Vaillant aroTHERM Plus 7 kW has a typical installed price of approximately €14,500 (including the hot water cylinder — sourced separately, installation and commissioning). The maximum SEAI heat pump grant from 3 February 2026 is €12,500 for houses switching from fossil fuel heating — made up of: ① €6,500 Heat Pump Equipment Grant, ② €2,000 Central Heating Upgrade Grant (if radiators need work), ③ €4,000 Renewable Heat Bonus. After the maximum grant, the effective cost is approximately €2,000. Apply at seai.ie before installation begins — you must receive a Letter of Offer first.
SEAI requires a minimum BER rating of B3 or above (or a satisfactory Heat Loss Indicator result) before approving a heat pump grant. Practically, the Vaillant aroTHERM Plus 7 kW — with a high maximum flow temperature of 75°C meaning minimal radiator changes are needed — is most efficient in a well-insulated home. Attic insulation, wall cavity fill and draught-proofing are the most cost-effective first steps. SEAI offers separate grants for insulation under the Better Energy Homes scheme. Your installer will complete a heat loss assessment and BER advisory during the site survey — this assessment is a requirement of the grant process and a separate SEAI grant of €200 is available to cover it.
Yes — the Vaillant aroTHERM Plus 7 kW has a maximum flow temperature of 75°C, which is sufficient to heat most Irish homes through existing standard radiators without any replacement. Most radiators in Irish homes built before 2000 were sized for boiler temperatures of 70–80°C — the Vaillant aroTHERM Plus 7 kW operates at this temperature, making it the ideal retrofit choice for homes with existing radiator systems. A SEAI-registered installer will complete a full heat loss assessment and radiator sizing check as part of the grant survey — this is included in the process.
R-290 (propane) has a Global Warming Potential (GWP) of just 3 — compared to 675 for R-32 (used in most other heat pumps) and over 2,000 for the older R-410A. As EU F-Gas regulations tighten and phase down high-GWP refrigerants, R-290 systems are future-proof — no phased price rises or service restrictions from regulatory changes. On safety: propane is flammable, but the Vaillant aroTHERM Plus 7 kW uses a very small refrigerant charge (typically 1–2 kg) in sealed, ATEX-rated circuits. Installation by a certified F-Gas engineer is mandatory. R-290 heat pumps have an excellent European safety record. The benefit is the lowest-climate-impact refrigerant available in residential heat pumps today.
A well-maintained Vaillant heat pump should last 15–25 years. The compressor unit typically lasts 15–20 years; the overall system can last longer with component replacement. Annual servicing by a qualified heat pump engineer is recommended — SEAI-registered installers typically offer annual service packages. The standard 5-year warranty covers manufacturing defects. R-290 service must be by a certified F-Gas engineer. Heat pumps have far fewer moving parts than boilers — no combustion, no flue, no annual gas safety certificate — reducing long-term maintenance burden.
Propane is flammable, but the Vaillant aroTHERM Plus uses a very small refrigerant charge (typically 1–2 kg) in sealed, professionally installed circuits. The risk is managed by ATEX-rated components and mandatory installation by a certified F-Gas engineer. R-290 systems have an excellent safety record in Europe — Germany in particular has used propane heat pumps at scale for years. The benefit is a GWP of just 3 versus 675 for R-32, making it by far the most climate-friendly refrigerant available in residential heat pumps today.
Most Irish homes built before 2000 have radiators sized for boiler flow temperatures of 70–80°C. When you replace a boiler with a heat pump, you need to deliver enough heat to the room at a lower flow temperature. If the heat pump can only reach 55°C but the radiator was sized for 75°C, it won't heat the room adequately on cold days. The Vaillant aroTHERM Plus reaches 75°C — the highest in this directory — meaning it can replace a boiler with no radiator changes in virtually any Irish home, including Georgian period properties with large column radiators.
🌡️ Also consider
Other residential heat pumps in our Irish directory.
