Dometic FanTastic Breathe 3100 – Roof ventilation system with heat recovery, including LED light and air purifier

Fresh air in your RV—without heat loss or drafts: The Dometic FanTastic Breathe 3100 is a roof ventilation system with patented heat recovery. Whether you’re cooking, showering, sleeping, or traveling with your dog, it continuously replaces stale air with fresh air—even with the windows and doors closed. In the process, it transfers 72–87% of the heat from the exhaust air to the fresh air, significantly reducing the load on your heater and air conditioner.

Smart sensors monitor air quality and automatically adjust the ventilation output. The built-in air purifier reduces dust, mold spores, and odors, while the integrated LED ambient light provides atmospheric lighting. You can conveniently control everything via smartphone using the Dometic Climate app. In STORAGE mode, the system ventilates your vehicle even when it’s parked, helping to prevent mold.

• Draft-free continuous ventilation with windows and doors closed
• Patented heat recovery with 72–87% efficiency—saves heating and cooling energy
• Integrated air purifier to combat dust, mold, and odors (included)
• Integrated LED ambient lighting (included)
• Smart sensors with automatic adjustment of ventilation output
• 4 modes: AUTO, TURBO, SLEEP, and STORAGE (mold protection during periods of inactivity)
• Control via the Dometic Climate App
• Slim, lightweight design—fits standard roof cutouts of 400 × 400 mm or 360 × 360 mm
• Expandable with Performance Kit and Solar Kit

Technical Specifications:

• Input voltage: 12 V DC
• Max. power consumption: 16.5 W
• Energy consumption: 0.06–0.40 kWh/24 h (4.9–33 Ah/24 h)
• Airflow: 30–50 m³/h
• Heat recovery: 72–87%
• Internal noise level: 52 dB(A), only 35 dB(A) in sleep mode
• External noise level: 43 dB(A)
• Roof unit dimensions: 542.6 × 553 × 127 mm
• Indoor air diffuser dimensions: 517.6 × 517.6 × 46 mm
• Suitable for roof thicknesses: 23–60 mm
• Operating temperature: −20 °C to +70 °C
• Protection rating: IPX4 | External fuse: 3 A
• Weight: 7.14 kg
• Model: ACC3100DWHWLD | Part No. 9620005072

Shipping costs:

Normal package: 9.
PRIO Normal package: 15.
Bulky goods package: 29.
Prio bulky goods package: 39.00
3x or more bulky goods parcels: 49.00
Prio 3x or more bulky goods parcels: 69.00
Piece goods: 99.
Collection: Free of charge

We deliver throughout Switzerland and to Liechtenstein. 

The costs are displayed in the checkout BEFORE payment. 

Bulky goods packages Parts with one side longer than 1 meter, e.g. Armaflex, solar, felt, aluminum profiles... 

General cargo: These are some batteries or large items that have to be shipped by freight forwarder. (Air conditioners...)

PRIO (selectable in the checkout at an additional cost) means that we pack these parcels first and hand over orders to the post office by 16:00 on the same day. These parcels are handed over to the post office with PRIO stickers and should arrive the next day. 

A pick-up in Winterthur can be selected at check-out. Please leave your email so that our system can let you know when it is ready for collection. (Usually happens within 24 hours)