Thermostar – Professional Dry Steam Cleaning System

What is Thermostar?

The Ultimate Home
Cleaning System

The Thermostar is an optimum handy household appliance with the performance and technology of an industrial appliance. It offers enormous relief whilst cleaning and allows for many different applications through its extensive accessories.

Whether stubborn stains on carpets, lime residues on tiles or grease on the sofa — with Thermostar you can remove these completely. No chemicals. No harsh products. Just pure, dry steam.

Beds, mattresses, carpets and upholstery
Bathrooms, kitchens, glass & tiles
Cars, bicycles and garden furniture
No chemicals — steam at up to 190°C kills bacteria

View Accessories

Our Range

Dry Steam Products

From household to professional — choose the Thermostar that's right for you

Thermostar Avantgarde S4

Dual chamber system with extended operating time — no cooling down needed to refill. The ideal home steam cleaner for thorough, chemical-free cleaning.

160°C 6 bar 2.85 KW

Stainless Steel Boiler	AISI 304
Boiler Volume	1.5 L
Water Tank	2 L
Pressure	6 bar
Steam Production	64 g/min (3.8 kg/h)
Steam Temperature	160°C
Voltage	230V – 50/60 Hz
Maximum Power	2.85 KW
Boiler Power	2.0 KW
Weight	ca. 9.5 kg

Professional Choice

Thermostar Professional S4

The professional steam cleaner for the home. Up to 8 bar and 190°C+ steam temperature — for highly hygienic, thorough cleanliness on any surface.

190°C+ 8 bar 2.45 KW

Stainless Steel Boiler	AISI 304
Boiler Volume	1.5 L
Water Tank	2 L
Pressure	8 bar
Steam Production	64 g/min (3.8 kg/h)
Steam Temperature	170°C
Voltage	230V – 50/60 Hz
Maximum Power	2.45 KW
Boiler Power	2.4 KW
Weight	ca. 9.5 kg

Why Dry Steam?

The Advantages of
Dry Steam Cleaning

No Chemicals

Kills Bacteria & Germs

Textiles Stay Dry

Self-Decalcifying

Eco-Friendly

Long Service Life

The Science

Hygienic Cleanliness at 174°C

Thanks to Thermostar technology, steam is heated in the boiler to up to 174°C before cleaning begins. This produces exceptionally dry steam — perfectly suited for textiles, carpets and upholstery without leaving moisture stains or destroying impregnation.

The Thermostar heating elements deliver 28W/cm² — four times more than standard spiral heating elements. The self-decalcifying design means lime deposits fall off as the element expands with heat, ensuring consistent performance for years.

Germs and bacteria are killed
Greases dissolved without chemicals
Impregnation preserved on treated textiles
Ideal for allergy sufferers — reduces mites

Versatility

Where Can You Use It?

28 different applications — from kitchen to car, tap a surface to see how

Entire Household

Instructions

Just clean everything with steam! Sparkling tiles, clean carpets, spotless glass. Clean all rooms twice as fast and easily.

Bathrooms & Toilets

Instructions

Large areas with triangular/square brush + microfibre cloth. Corners and slits with steam nozzle. Inner toilet edges with hot water function.
Accessory: Steam Lance, Triangular & Rectangular Brush

Wall Tiles & Shower

Instructions

For heavy calcium deposits, apply vinegar/citric acid first (20 min), then clean with steam nozzle and microfibre cloth. Clean grooves with nylon or brass brush.
Accessory: Steam Lance, Triangular Brush, Joint Brushes

Kitchen Grease

Instructions

Clean with steam lance, small round brass brush or large nylon brush with stainless steel wool depending on surface sensitivity.
Level: Maximum steam · Accessory: Steam Lance, Brass & Nylon Brush, SS Wool

Kitchen Oven

Instructions

Hot steam dissolves even burnt-in stains. Use round nylon brush with stainless steel wool. Move with pressure on stubborn areas.
Level: Minimum steam · Accessory: SS Wool & Nylon Brush

Vent Hood

Instructions

Blow through grease filter with maximum steam. For extractor hood, use steam lance and wipe with microfibre cloth.
Accessory: Steam Lance & Small Nylon Brush

Mattresses & Upholstery

Instructions

Clean with triangular or square brush + clamped microfibre cloth. Test on concealed spot first. For sensitive fabrics, steam from 10cm away.
Level: Maximum steam

Carpet Cleaning

Instructions

Clean with triangular or square brushes and clamped microfibre cloth. Test a hidden area first. For sensitive fabrics, apply steam from 10cm.
Level: Maximum steam · Accessory: Rectangular Brush & Extensions

Carpet & Fabric Stains

Instructions

Place steam lance directly over stain and move quickly back and forth. Wipe with microfibre cloth. Check material is steam-safe first.
Level: Minimum steam · Accessory: Steam Lance

Parquet & Laminate

Instructions

Use square brush with clamped microfibre cloth. Press steam switch only occasionally — minimal humidity. Gentler than wet mopping.
Level: Minimum steam · Accessory: Rectangular Brush & Extensions

PVC & Floor Tiles

Instructions

Clean with triangular or square brush + clamped microfibre cloth. Kills bacteria and dissolves lime without chemicals.
Level: Minimum steam · Accessory: Triangular or Rectangular Brush

Car Exterior

Instructions

Very hot, dry steam removes insects, brake dust and stubborn dirt gently. Use from close range for deep clean; wipe with microfibre cloth.
Level: Min–Max steam · Accessory: Steam or Bayonet Lance

Car Interior

Instructions

Clean upholstery, carpets, door linings, dashboard, safety belts. Use triangular brush + cloth. Max steam for fabric seats; minimum for leather/Alcantara.
Accessory: Steam Lance & Triangular Brush

Bicycles & Motorcycles

Instructions

Clean with steam lance and wipe with microfibre cloth when complete.
Level: Hot water, min–max steam · Accessory: Steam Lance

Glass & Windows

Instructions

Dissolve dirt with steam nozzle, wipe with microfibre cloths. Or use triangular brush + cloth, or the special window cleaner attachment.
Level: Minimum steam · Accessory: Steam Lance, Steam Window Cleaner

Window Frames & Shutters

Instructions

Use steam lance (wipe with cloth) or triangular brush + clamped cloth. With wooden frames, use little moisture and keep lance tip back.
Level: Minimum steam

Venetian Blinds

Instructions

Steam individually with little pressure then wipe with microfibre cloth — blinds are sensitive.
Level: Minimum steam · Accessory: Steam Lance

Joints & Grooves

Instructions

Use round brass or nylon brushes with extension tubes. Move slowly with little pressure — more heat, less effort. Use special joint brushes too.
Level: Minimum steam · Accessory: Nylon, Brass & Joint Brushes

Bathroom Fixtures & Calcium

Instructions

Use steam lance + round nylon brush with stainless steel wool. For large calcium deposits, add a small amount of vinegar or citric acid.
Level: Min–Max steam

Drain Cleaning

Instructions

Fill drain with a little water, place drain dome head over drain, close overflow openings and flush with hot water in short intervals.
Level: Hot water · Accessory: Drain Dome Head

Radiators

Instructions

Clean radiators from above with steam lance. Dust is collected and can be wiped off at the bottom.
Level: Maximum steam · Accessory: Steam Lance

Garden Furniture

Instructions

Use triangular brush with cloth. For plastic furniture, place microfibre cloth between brush and surface to avoid damage.
Level: Minimum steam · Accessory: Triangular Brushes

Leather

Instructions

Clean with triangular/square brush + clamped microfibre cloth. Operate steam switch only occasionally. Apply leather protective agent after.
Level: Minimum steam

Plants

Instructions

Steam from 40–50cm away. At this distance steam is no longer hot but cool — easily removes dust without damage.
Level: Maximum steam · Accessory: Steam or Bayonet Lance

Wood Furniture

Instructions

Steam from slightly greater distance and wipe immediately with microfibre cloth. Takes a little longer but is very gentle.
Level: Minimum steam, even clean · Accessory: Steam Lance

Polished Wood Surfaces

Instructions

Treat waxed wood very carefully, without pressure. Use towels (not microfibre) as microfibre can remove the wax layer.
Level: Minimum steam · Accessory: Steam Lance

Thawing & Defrosting

Instructions

Attach steam lance with steam scraper. Smoothly clean frosted fridge areas — gently thaws ice in a controlled manner.
Level: Maximum steam · Accessory: Steam Scraper

Watch Bands & Jewellery

Instructions

Place jewellery on microfibre cloth and clean at close range with steam nozzle. Steam onto the strap only — not directly onto the watch case!
Level: Minimum steam · Accessory: Steam Lance

Animal Cages & Metal Grates

Instructions

Simply clean with steam lance and wipe with microfibre cloth.
Level: Min–Max steam · Accessory: Steam Lance

Under the Hood

Thermostar Technology

More than 100,000 units sold worldwide. The technology in Thermostar is now used in many other products globally.

True Temp Technology

The electromagnetic float in Thermostar ensures high-quality, dry steam throughout the entire service life. Unlike electronic sensors that calcify over time, True Temp stays accurate.

Self-Decalcifying Element

28W/cm² — four times more power than standard elements. The heating element expands with temperature, causing limescale deposits to fall off automatically.

Two-Chamber System

The steam cleaner can be refilled at any time, even at full operating temperature — no cooling down period needed. Never wait to top up.

AISI 304 Stainless Boiler

Produced exclusively from AISI 304 stainless steel — withstands up to 600°C. Welded via Tungsten Inert Gas process and pressure-tested to 70 bar.

Equipment & Tools

What's in the Box

Standard Equipment

Thermostar Dry Steam Cleaner (Avantgarde or Professional)
Flexible steam hose with extension tube
Two extensions
Two standard brushes with steam buffers
Set of standard brushes
Two steam lances
Drain dome head
Steam scraper

Additional Thermostar Tools

Thermostar Steam Mop System
Steam Iron
Steam Ironing Station
Cleaning Cart

View All Accessories

Our Promise

Lifelong Restoration Warranty

The investment in a Thermostar is an investment for life. The self-descaling heating rod has four times higher performance than other spiral heating elements and can be replaced at any time.

If a repair is ever necessary, we guarantee you will receive all the spare parts — no matter how many years have passed. You will never have to dispose of a device again.

Lifelong Spare Parts
For all device types, always available

European Quality
Best-in-class product standard

Eco-Friendly
Clean without chemicals. Buy once.

10-Year Boiler Warranty
On the stainless steel boiler

See It In Action

Thermostar Videos

Product Video

Technology Video

Application Video

Steam Iron Station

Training Video

Our Story

A Sustained Invention

More than 30 years ago a pioneering invention was made in Italy — the land of steam. The foundation of modern Thermostar was a revolutionary boiler and an interchangeable heating element. Since then the product has continuously evolved with the times.

1989

First Thermo-Cleaner launched — the beginning of a revolution in steam cleaning

2009

Rebranded as THERMOSTAR — a name synonymous with dry steam excellence

2011+

Portfolio expanded — accessories, mop systems, steam irons and more

Today

100,000+ units sold worldwide. The smallest, fastest and strongest dry steam cleaner in its class

Our Philosophy

Products for Life

Sometimes, just looking at people, one might get the impression that nature belongs to us. In reality, we are also just a part of it. The future belongs to our children.

Therefore, we at Thermostar try to prevent mountains of waste wherever possible — and we have found a way that makes sense both ecologically and economically.

Products for life only have to be bought once and disposed of once. Thermostar is not available through conventional retail channels — it is sold exclusively through selected authorised distributors to ensure the highest quality standard and extraordinary guarantee services.

Thermostar
Dry Steam System

The Ultimate Home
Cleaning System