Propex Acoustic Ducting 1 Metre ROOF VENTS & HATCHES testing goes far beyond the

testing goes far beyond the required standards

dust and pests

so that the power is run directly through switch direct to tube holder

Immediate response on/off

The 390 has 2 x 1

Propex Acoustic Ducting 1 Metre ROOF VENTS & HATCHES testing goes far beyond theTechnical hot air ducting suitable for use on 2kW heaters. This ducting is designed to reduce any noise transmitted through the ducting from the heater as well as air noise associated with it moving through the ducting. Acoustic ducting has a wide porosity rating of 50 500 Hz and so deadens a range of frequencies. Test have shown that maximum effect will be gained when using 1 metre of ducting and this should be positioned any where within the ducting