SunLizard Installation Notes & Photos

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.Installation Notes & Photos

I opted to have a plumber install the unit - I didn't feel confident waterproofing around the ducting as it passed through the roof tiles.
The Sunlizard was fitted flush to the most northerly face of the house roof (This roof face is about 35° west of True North). The pitch of the roof is 30°. I used 6 metres of duting between the inlet vent and SunLizard, and 8 metres between the SunLizard and outlet vent. I used 1 joiner in the 8 metre run (The Ducting is purchased in 6 metre lengths). These runs should be kept as short as possible to minimise heat loss in the ducting. Depending on the position of the wall outlet, the ducting to it can either be run down an external wall, or down an internal wall or through a built-in cupboard in an adjacent room. If either of the first two options are used, then a suitable covering for the ducting also has to be worked out. In my case, I had a built-in cupboard which backed on to the living area, so I modified a number of shelves and ran the ducting through it.

Some of the Installation Components Items in the photo:
  • In top left hand corner, Weather Protector which mounts over control flap* (Supplied)
  • 20 Watt Photovoltaic Panel (Supplied)
  • 2 x DektiteŽ DNL 103 Nu-Lead Flashings
  • 2 x 150mm diameter 90° bends
  • 2 x 150mm duct joiners
  • Round vent for mounting in the ceiling
  • Hood for converting 150mm ducting to a wall vent
  • Wall Vent
  • 3 Rolls of duct tape.

 

Preparing the roof Holes have been cut in the roof tiles, and the DektiteŽ flashing placed over the top. The plumber is cutting out the rubber inserts of the flashing to fit the 150mm diameter 90° bends. You can also see the hooping iron sticking out from under some of the tiles.This is used to secure the Sunlizard to the roof. One end of these lengths is attached to the roof trusses, while the other ends will attach to the SunLizard.

 

In the roofspace In the roofspace: The 150mm insulated ducting attached to the lower part of the 90° bends. Unfortunately the amount of the 90° bends poking through to this side of the tiles isn't great, which made attaching the ducting tricky.

The inlet (from the ceiling vent) is on the left, and the outlet (to the floor vent) is on the right. The cables that can be seen go to the datalogger's temperature sensors located just inside the 90° bends.

One of the pieces of hooping iron which attaches the SunLizard to the roof trusses can be seen at the top left corner of the photo.

 

Ducting for the outlet vent inside built-in wardrobe A number of shelves in this built-in wardrobe were modified to accomodate the ducting, which is used to feed the heat from the SunLizard to the outlet vent in the adjacent longeroom.   Inlet & Outlet Vents in the loungerrom SunLizard Round Inlet vent in the ceiling, and rectangular wall outlet vent. The Laptop PC on the table is displaying and recording temperature data from the Datalogger.

 

Suppliers:
  • Sunlizard box, including 20 Watt PV Panel : Alternative Fuels & Energy
  • Datalogger with temperature probes: Speak to Alternative Fuels & Energy
  • DektiteŽ DNL 103 Nu-Lead Flashings : Sourced by local Plumber. Supplier: DEKS Industries Pty Ltd, Bayswater, Vic.
  • 90 degree bends, vents & vent hood, 150mm insulated ducting & joiners, duct tape : Westaflex, Penrith, NSW (Part of Uniflex, West Heidelberg, Vic)

Last Updated: 28/06/04