<p><span style="text-autospace:none">1.0) Board over existing timber louvre in dormer window</span></p>

<p><span style="text-autospace:none">2.0) Remove existing egg crate grille and make good ceiling</span></p>

<p><span style="text-autospace:none">3.0) Insulate loft space </span></p>

<p><span style="text-autospace:none">4.0) Strip-out existing low level supply fan and spiral ductwork </span></p>

<p><span style="text-autospace:none">5.0) Low level Supply air ventilation</span></p>

<p><span style="text-autospace:none">5.1)&nbsp;Systemair PRIO250-EC inline fan</span></p>

<p><span style="text-autospace:none">5.2)&nbsp;300mm spiral duct</span></p>

<p><span style="text-autospace:none">5.3)&nbsp;1no 435 x 435mm louvre (with 50% free area)</span></p>

<p><span style="text-autospace:none">6.0) High level extract </span></p>

<p><span style="text-autospace:none">6.1)&nbsp;Systemair PRIO150-EC inline fan</span></p>

<p><span style="text-autospace:none">6.2)&nbsp;200mm spiral duct</span></p>

<p><span style="text-autospace:none">6.3)&nbsp;1no 310 x 310mm louvre (with 50% free area)</span></p>

<p><span style="text-autospace:none">7.0) Gas interlock </span></p>

<p><span style="text-autospace:none">7.1) 1 x Merlin 1000BH gas proving system</span></p>

<p><span style="text-autospace:none">7.2) 1 x Merlin Natural Gas Detector</span></p>

<p><span style="text-autospace:none">7.3) 1 x Merlin CO Sensor</span></p>

<p><span style="text-autospace:none">7.4) Existing Gas Solenoid valve to be used</span></p>

<p><span style="text-autospace:none">8.0) Emergency knock-off buttons and isolations </span></p>

<p><span style="text-autospace:none">9.0)&nbsp;BMS &amp; Fire Alarm interconnections</span></p>

<p style="margin-bottom:11px">10.0) Testing and Commissioning</p>

<p style="margin-bottom:11px">11.0) To overboard ceiling with FR plasterboard to create 30min ceiling</p>
