passive heating

The first category chosen for comparison is wall
construction, as this categorizes each construction technique to its case
study. The date of construction, location and architect do not provide data
regarding energy use but contribute valid information between each case study. Depending
on how recent or old the dwelling is, a pattern in regards to energy
consumption due the age of the dwelling could be shown. All case studies will
be located in the UK/Ireland. Therefore, the data compared is more fair as all case studies are from a similar climate.

 The
relationship between the thickness of wall and the U-value of the wall will
compare the thermal transmittance of each method of construction. Some
construction methods may need thicker walls to preform as well as others. The
floor area is essential when comparing space heating demand. The bigger the
floor area the more heating required for the dwelling. The space heating demand
is the amount of heating used from mechanically stored solar energy. This is referred
to as active heating, the energy is used to heat the building through hot water
or space heating. The heat load is the amount of heat energy added to a space
to maintain an appropriate temperature. In regards to passive house, the heat
load should be ideally low as the MHVR should supply a regulated temperature.