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The Stiebel-Eltron [LWZ 180] has been selected for this project. It is a perfect unit for a modest-sized house.

 

Inlets will be located in the bedrooms and extracts will be placed in the kitchen and bathroom.

 

This will ensure clean air in bedrooms, moist and odorous air is exhausted and there is regular air exchange throughout the house.

  • Why was Rockwool used rather than PIR insulation?
    Both Rockwool and Enertherm PIR were used on this project – and both have been used for Outsulation before. Rockwool is ideal for retrofitting because it accommodates the irregularities in the original substrate.
  • Why did you add the insulation to the gable end?
    The PIR section is half the thickness of the Rockwool for the same R-value which allowed us to cope with a step in the existing cladding line, and the height lines up with the ceiling insulation depth – the gap can be seen in the below detail.
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