Description
Vaillant aroTHERM Plus 3.5kW with uniTOWER plus (0010037201)
The Vaillant aroTHERM Plus 3.5kW with uniTOWER plus is a compact, high‑efficiency air‑to‑water heat pump package designed for low‑energy homes, new builds and well‑insulated retrofit projects. Using natural R290 refrigerant and delivering flow temperatures up to 75 °C, it is suitable for both underfloor heating and modern radiator systems while significantly reducing carbon emissions and running costs.
Key benefits
- High efficiency: A+++ rated air‑to‑water heat pump with excellent seasonal performance for low running costs.
- Low‑carbon heating: Uses natural R290 refrigerant with very low global warming potential.
- High flow temperatures: Up to 75 °C flow, ideal for properties with existing radiators or mixed systems.
- Quiet operation: Very low sound levels and advanced acoustic design, suitable for dense residential areas.
- Complete package: Outdoor unit plus uniTOWER indoor unit with integrated hot water cylinder and hydraulics.
- Future‑ready: Compatible with smart controls and renewable add‑ons such as solar PV.
aroTHERM Plus 3.5kW outdoor unit
The aroTHERM Plus 3.5kW outdoor unit is engineered for reliable performance in the UK climate, providing efficient heating even at low outdoor temperatures. Its compact footprint and quiet operation make siting straightforward, whether at the side of the property, in a courtyard or close to a boundary.
- Output: 3.5 kW (nominal, heating)
- Application: Low‑energy homes, small to medium properties, new build and retrofit
- Operating range: Designed to work efficiently at low ambient temperatures
- Refrigerant: Natural R290 for reduced environmental impact
- Noise: Very low sound power level with advanced acoustic insulation
- Efficiency: High seasonal efficiency for reduced energy consumption
uniTOWER plus indoor unit
The uniTOWER plus is a pre‑assembled indoor unit that combines a domestic hot water cylinder and all key hydraulic components in one neat, space‑saving tower. With a footprint similar to a fridge‑freezer, it is ideal for utility rooms, plant rooms or larger cupboards.
- Integrated cylinder: Approx. 190 litre domestic hot water cylinder, suitable for typical family usage.
- Pre‑plumbed and pre‑wired: Major components factory‑fitted for faster, cleaner installation.
- Built‑in hydraulics: Includes key components such as pump, expansion vessel and safety devices.
- Easy servicing: Front access to components for straightforward maintenance.
- Compact design: Tall, slim tower format to maximise floor space.
Typical applications
- New build low‑energy homes requiring a compact, all‑in‑one heat pump solution.
- Well‑insulated retrofit properties looking to replace fossil fuel boilers with low‑carbon heating.
- Mixed emitter systems combining underfloor heating on the ground floor with radiators upstairs.
- Homes with limited plant space where a single indoor tower unit is preferred.
Key features at a glance
- Product: Vaillant aroTHERM Plus 3.5kW with uniTOWER plus
- Manufacturer: Vaillant
- Part number: 0010037201
- Heat pump type: Monobloc air‑to‑water heat pump
- Refrigerant: R290 (propane, low GWP)
- Nominal output: 3.5 kW (heating)
- Flow temperature: Up to 75 °C (system‑dependent)
- Indoor unit: uniTOWER plus with integrated DHW cylinder and hydraulics
- Hot water storage: Approx. 190 litres
- Installation: Pre‑plumbed, pre‑wired indoor unit for reduced installation time
Why choose this package?
This package brings together Vaillant’s latest aroTHERM Plus heat pump technology with the convenience of the uniTOWER plus indoor unit, creating a complete, neatly packaged heating
and hot water solution. It is an excellent choice for homeowners and installers who want:
- Lower running costs compared with traditional fossil fuel boilers.
- Reduced carbon emissions and future‑ready heating technology.
- Minimal disruption thanks to a compact, integrated indoor unit.
- Trusted brand quality from one of Europe’s leading heat pump manufacturers.
Installation and controls
The aroTHERM Plus range is designed to work seamlessly with Vaillant’s own control systems, allowing weather compensation, time and temperature scheduling and smart control options (where specified). For best performance and compliance with current regulations, the system should be designed, installed and commissioned by an MCS‑accredited heat pump installer.
All performance figures and capabilities are subject to correct system design, installation and operating conditions. Always refer to the latest official Vaillant documentation and data sheets for detailed technical information.
This Pack Includes:
- 1x Vaillant aroTHERM Plus 3.5kW Heat Pump (0010047380)
- 1x Vaillant aroTHERM Plus uniTOWER (0010022093) – UKCA Certification – PDF Download
- 1x Vaillant uniTOWER Connection Kit (0010027979)
- 1x Vaillant uniTOWER Expansion Vessel Installation Kit (0020180979) – Quick Guide – PDF Download
- 1x Vaillant uniTOWER On Wall Connection Set (0010027981) – Quick Guide – PDF Download
Vailliant uniTOWER User Manual – PDF Download
Vaillant aroTHERM Plus Installer’s Quick Guide – PDF Download
Vaillant aroTHERM Plus Installation & Operation Manual – PDF Download
Heat Pump Specifications
| Nominal capacity | 4.8 kW |
| Compressor type | Rotary Piston |
| Refrigerant type | R290 |
| Refrigerant volume | 0.6 kg |
| Required flow rate | 7 L/m |
| Max Flow Temp | 75°C |
| Max Sound Level (EN14511) | 54 dB(A) |
| Warranty | Min 2 Years* |
uniTOWER Plus Specifications
| Product Code | 0010022093 |
| Manufacturer Code | VIH QW 190/6 E GB |
| Hot Water Capacity | 185 litres |
| Coil Surface Area | 1.3 m2 |
| Expansion Vessel Size | 8 Litre |
| Heat Pump Connections | G 1.25″ |
| Heating Circuit Connections | G 1″ |
| Cold & Hot Connections | G 3/4″ |
Heat Pump Dimensions
| Height | 765 mm |
| Width | 1100 mm |
| Depth | 449 mm |
| Net weight | 114 kg |
| Flow & Return Connections | 1.25″ Female (For Flat Face Connector) |
Cylinder Dimensions
| Height | 1880 mm |
| Width | 595 mm |
| Depth | 693 mm |
| Weight | 146 kg |
| Weight Full | 351 kg |
