Water or warmth?
Why choose when you can have both? The best water. The best heating. One team.
It’s the everyday comforts that make a house feel like home: silky-soft water on your skin, mineralised drinking water at the touch of a button, and a comfortable indoor climate all year round. BWT and windhagerNXT bring together everything that belongs together – water, heating and wellbeing.
Two leading brands. One perfectly coordinated solution for a home that simply feels right.

Solar PV System
Solar power for water and heating
Already have a solar PV system? Perfect. The heat pump uses your solar electricity directly for heating or cooling in summer, making your home less dependent on the grid.
Water Softener
Silky-soft water throughout your home

talled at the main water supply, the water softener reduces water hardness before the water enters your home’s pipework.
This means soft water from every tap and shower – gentle on your skin and providing effective protection against limescale in pipes, fittings and household appliances.
BWT Perla MAXX deluxe | Part of the OnePipe Pearlwater System
Heating
Two technologies. One team.

Pellet heating and heat pump technology complement each other in a hybrid heating system.
The result: reliable comfort and pleasant indoor temperatures, all year round.
Heat and Electricity Storage
Energy – exactly when you need it

Your storage systems keep heat and solar electricity available whenever you need them, even in the evening or on cloudy days.
BWT Pearlwater Mineralizer Set
Mineralised drinking water at the touch of a button

Discreetly installed beneath your kitchen sink and connected directly to your existing water supply, the system delivers filtered, mineralised water.
No more carrying heavy packs of bottled water.
BWT Pearlwater Mineralizer Set | Part of the OnePipe-Pearlwater System
Living Room and Bedroom
The perfect indoor climate in every season
Cosy warmth in winter, refreshing coolness in summer – heating and cooling from one integrated system.
Balcony
A touch of luxury, even in a small space
Enjoy a spa-like experience wherever space is limited.
Whether you’re looking for an invigorating cold plunge or soothing warmth, the Ice Mirror Tub premium stainless steel hot and cold plunge pool delivers both.
Outdoor Area – Heat Pump
Harnessing energy from the outdoor air

The heat pump extracts energy from the outdoor air and can also work together with the pellet heating system in your basement.
Depending on the weather and your heating requirements, the system automatically selects the most suitable heating technology.
In summer, the heat pump also provides refreshing cooling throughout your home.
Swimming Pool
A clean pool. Without the effort.
The Gassner stainless steel pool becomes the centrepiece of your garden.
The BWT robotic pool cleaner takes care of the cleaning – from the floor and walls to the waterline, removing everything from leaves to the finest grains of sand, fully automatically.
Leaving you more time for what really matters: swimming and enjoying life.
Bathroom
More comfort. Less cleaning.
Soft water feels noticeably gentler on your skin when you shower.
And because less limescale builds up on tiles, glass shower screens and fittings, your bathroom stays cleaner for longer – with less effort.

The Best Water.
Throughout Your Home.
With BWT OnePipe Pearlwater, exceptional water quality becomes a natural part of everyday life.

Bestes Wasser.
im ganzen Zuhause
Mit BWT OnePipe Pearlwater wird beste Wasserqualität zum selbstverständlichen Teil des Alltags.
White limescale marks on your taps, constant cleaning, heavy packs of bottled water in your car? With BWT OnePipe Pearlwater, those days are over. This intelligent system combines two types of water quality under one roof: silky-soft Pearlwater throughout your home and mineralised drinking water directly from your kitchen tap.
Zwei Schritte, ein perfektes Ergebnis





Two Specialists.
One Powerful Team.


The Best Heating and Cooling – All in One System.
A snowstorm outside, cosy warmth inside.
Scorching heat outside, refreshing coolness inside.
The AeroWIN DELUXE NXT heat pump delivers both heating and cooling with a single unit – using the natural refrigerant R290.

Bestes Heizen und Kühlen – mit einem Gerät.
Draußen Schneegestöber, drinnen behagliche Wärme. Draußen flirrende Hitze, drinnen wohltuende Kühle. Die Wärmepumpe AeroWIN DELUXE NXT schafft beides mit einem Gerät – mit natürlichem Kältemittel R290.
AeroWIN DELUXE NXT





One Home.
Everything at Ist Best.

Bathroom
Silky-Soft Pearlwater

Kitchen
Mineralised Drinking Water

LIVING SPACES
Comfortable Warmth
Why the Best Team?
QUALITY
Two premium solutions united by a shared commitment to quality.
COMFORT
Water, heating and indoor climate solutions for a better quality of life.
DESIGN
Technology that blends seamlessly into modern living spaces.
RESPONSIBILITY
Responsible use of resources and future-oriented technology.
I’m interested in
Everything You Need to Know at a Glance.
Less effort and greater peace of mind. Instead of planning two separate systems and coordinating different companies, you get a solution designed to work together from the very beginning. Your hot water supply and heating system are perfectly coordinated, while the right water quality helps protect pipes and appliances from limescale deposits.
And whenever you need support, you’ll know exactly who to contact.
Yes. BWT and windhagerNXT systems complement each other wherever water and heating interact – for example, in domestic hot water production, heating system water and water-based building services.
The choice is yours. Start with water or heating, or combine both solutions. You also decide when to install them.
If you’re replacing your heating system now, you can add the water solution later – or vice versa. We’ll help you determine the best approach for your property.
You’ll have a dedicated contact person to support you throughout the entire process – from initial consultation and installation to servicing and warranty matters.
Yes, the initial consultation is free.
Here’s what happens next:
- We’ll contact you to discuss your requirements.
- We’ll assess the conditions at your property.
- You’ll receive a tailored recommendation for your home.
You can then take your time to decide, with no obligation.
Pearlwater is produced using BWT water softening systems, which reduce the hardness-causing minerals calcium and magnesium.
You’ll notice the benefits throughout your home: fewer limescale deposits in your pipes, less cleaning and long-lasting, reliable operation of your boiler, coffee machine and washing machine. Pearlwater also transforms your daily shower into a moment of wellbeing, leaving your skin and hair feeling silky-soft. The difference compared with conventional water softening is that OnePipe Pearlwater provides softened Pearlwater throughout your home and mineralised drinking water in the kitchen – all through one shared pipe system.
Yes, it can be.
Even moderately hard water, starting at around 8 °dH (German degrees of hardness), can cause limescale deposits. With hard water above 14 °dH, water treatment is particularly beneficial. The advantages include less limescale, better protection for pipes and appliances, and reduced cleaning effort.
You can find out your local water hardness from your water supplier or local authority. We’ll assess your situation and recommend the most suitable water treatment solution for your needs.
No, you don’t need a separate tap. Mineralised drinking water comes directly from your existing kitchen tap. This is made possible by BWT OnePipe Pearlwater. The water softening system supplies your entire home with Pearlwater, while the BWT Pearlwater Mineralizer kitchen set, installed beneath the sink, enriches the water with minerals at the touch of a button. This gives you two water qualities from one supply line: silky-soft Pearlwater for everyday household use and mineralised drinking water for drinking and cooking. No more carrying bottles or storing packs of water.
Water softening systems are compact and are usually installed in a basement or utility room. Depending on the system, connections for water, wastewater and electricity are required in addition to space for the unit itself. Regular maintenance is recommended to ensure reliable operation.
Running costs depend on factors such as water consumption, water hardness, the system installed and the level of maintenance required.
We’ll provide a clear overview of the expected costs in advance, giving you complete cost transparency from the outset.
Yes. The AeroWIN DELUXE NXT is also designed for renovation projects and can operate with radiators or underfloor heating.
It achieves flow temperatures of up to 72°C.
Whether your existing heating surfaces can continue to be used depends on factors such as your property’s heating requirements, insulation and heating system design. In some cases, the existing heating surfaces are sufficient. In others, it may be advisable to adapt or replace individual radiators. We’ll assess your property and explain what’s required to make the switch to a heat pump.
The AeroWIN DELUXE NXT can both heat and cool your home, with active cooling included as standard. In cooling mode, the heat pump extracts heat from your rooms and releases it into the outdoor air.
Suitable surface-based systems, such as underfloor, wall or ceiling heating systems, are used to provide cooling.
The best cooling solution for your property depends on your existing building services and the desired cooling capacity. Conventional radiators are generally not suitable for cooling.
The AeroWIN DELUXE NXT is designed for particularly quiet operation.
Depending on the model, its specified sound power level ranges from 44 to 49 dB(A).
The installation location also influences perceived noise levels and is therefore taken into account during planning.
R290 is propane, a natural refrigerant used in heat pumps. It has a very low global warming potential and is therefore used in modern heat pump technology.
The AeroWIN DELUXE NXT uses an R290 refrigerant circuit.
The funding available for a heat pump depends on your property, your federal state or region, and the funding programmes currently in place.
Eligibility requirements, application deadlines and available funding can change.
That’s why we’ll review the current funding options available for your project.
Important: Different funding programmes have different requirements and deadlines.
We therefore recommend checking funding opportunities as early as possible, particularly before placing an order or starting installation.

