Estimated heat loss from
- Offices, apartments, hotels ...
- Entrance halls, vestibules ...
- Industrial buildings ...
- Houses ..
- Public buildings ..
Infiltration rates through various Types of Wall Constructions
|Wall Type||Infiltration Rates (cu.ft per foot of crack per hr.)|
|Wind Velocity (mph)|
|Frame Wall with lath and plaster or wallboard||0.03||0.07||0.13||0.18||0.23||0.26|
|Brick Wall, 8 1/2" plain||2||4||8||12||19||23|
|Brick Wall, 8 1/2" plain with plaster or wallboard||0.02||0.04||0.07||0.11||0.16||0.24|
|Brick Wall, 13" plain||1||4||7||12||16||21|
|Brick Wall, 13" plain with plaster or wallboard||0.01||0.01||0.03||0.04||0.07||0.10|
Heating systems - capacity and design of boilers, pipelines, heat exchangers, expansion systems and more.
Fresh air (make up air) rquirements - or recommended air change rates (ACH) for typical rooms and buildings like auditoriums, kitchens, churches and more.
Thermal resistance in building elements like walls, floors and roofs above and below the ground.
Overall heat transfer loss from buildings - transmission, ventilation and infiltration.
Air flow - volume and velocity - due to stack or flue effect caused by indoor hot and outdoor cold temperature difference.
Calculate steps, unit rise and run in a staircase.
Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units.