Vehicle service centres and car washes

The typical workshop and car wash problem

• Every vehicle that drives in brings cold, exhaust fumes, moisture and dirt with it.
• A wash bay runs at permanently high humidity, with condensation on the structure and corrosion behind it.
• Technicians work underneath cars, so the heat has to arrive at floor level.
• Filters clog with dust and aerosols within weeks.

Recommended models

Requirement	Model
Heating the repair area	OXA D, OXA GD
Make-up air for exhaust extraction	OXA FD
Dehumidifying the wash bay	OXA DK
Wall mounting beside the lifts	OXA SD

Worked example

A 600 m² workshop, 6 m high, 4 lifts, exhaust extraction of 3,000 m³/h.

• OXA FD-1 — 1 unit providing heated make-up air against the extraction.
• OXA D-1 — 2 units heating the repair area.
• A 90 m² wash bay: OXA DK-1 holding 60 % RH.
• Automatic filter cleaning runs daily after the shift.

The investor’s view: no corrosion, no downtime

In a workshop, condensation is not a cosmetic issue — it is corrosion on the lifts, the tools and your customers’ bodywork. The right combination of heating and dehumidification protects the equipment, cuts the time a bay takes to recover after the doors open, and makes a winter shift genuinely productive.

• Temperature recovers fast after a vehicle drives in: the long-throw stream brings the bay back up in minutes rather than hours.
• Wash bay dehumidification (OXA-DK): no more condensation on the doors, rust on the tools or damp in the paint area.
• Zone-by-zone metering: repair area, wash bay and customer area on different setpoints — you pay for heat where it earns.
• Every degree saves around 2.5–3 % of annual running cost, and overnight background heating is two clicks to set up.

Case study

A 600 m² vehicle workshop with a wash bay: OXA D plus OXA FD in the repair area, OXA DK in the wash bay. Condensation on the doors and corrosion on the equipment are gone, and floor-level temperature holds at +18 °C.