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Acrylic Render (1)
Airtightness (10)
Alarm (2)
Building Physics (2)
CCTV (2)
Cement Board (2)
Cladding (3)
Design (15)
- Garden (3)
drywall installation (5)
Electrics (9)
- Ethernet (1)
- KNX (3)
- LED Lighting (2)
- TV/Satellite (1)
Exterior Cladding (2)
Fire Best Practice (2)
Foundation (9)
- The Structure (4)
Heat Recovery (6)
Hygrothermal Analysis (3)
Insulation (10)
LED Lighting (5)
Painting (1)
Partitions (6)
Passive House Data (5)
Passive House Shading (1)
PHPP (5)
Plasterboard (5)
Plumbing (4)
Primary Heating (1)
Rainwater Harvesting (4)
Renovation (1)
Roof (8)
Site Survey (1)
Software Tools (5)
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Solar Hotwater (4)
Solar PV (3)
Sound Proofing (6)
Stratification (1)
Thermal Bridge (2)
Thermal Buoyancy (1)
Tools and Aids (10)
Walls (13)
Window/Door Installation (4)
Windows (7)

A Performance Approach To A Self Build

Design

The Self Build

Passive House Self Build

This site/blog is the experience of deciding to build a house to a performance standard using the Passive House Planning Software called PHPP. It is also an objective to comply with the Irish Statutory Rating System (BER). The other tools used to build the house which are also performance oriented are Thermal Bridging Software and Hygrothermal Analysis Software.

Post Archives

Ephermera

LIGHTING AND KNX UPDATE

I am just getting around to installing the light switches . This is how the finished light switches look at the moment. Later on I plan to change the front plate of this switch to one of the other options such as glass, wood or marble.

This is what the above light switch looked like before installation. Standard switches can be used if one uses the method described below. I used a screened alarm cable to connect the KNX binary device known as a universal interface. This voltage is extra low around 3 volts DC.

KNX Distribution Board

As seen above this is what a typical KNX lighting distribution board looks like. One has a Power Supply (top left) and a programming Interface (next to power supply) . The three actuators (12 way) on separate rows send power directly to the rooms or other devices such as towel heaters. Functionality such as timers, last state before power failure, purging (automatically switching on pumps/valves to ensure they do not stall) etc is already built into the KNX technology.
- LED Housings before I assembled the LED and its LED Driver.
- Led mounted on Heatsink
This is one type of LED Driver I have used to power each LED. Typically when one buys an LED they have already tried to fit all the electronics contained in the above unit in the lamp one buys . This is one reason why led lamps do not always live up to their expected life time of 50,000 hours. The majority of LED failures are due to heat stress. I am using 9 watt LED in the housings shown above and the Power supply is a separate unit. For lower power LEDs one requires less electronics.
Lighting and KNX Update
22/03/2019 Seamus Sheehy Leave a comment

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A Performance Approach To A Self Build