Varmeoverførsel

Hvor varmen bliver af: U-værdier, den varme luft under taget og kondens på kolde flader.

U-values and heat loss (English)How much heat leaves a hall through its roof, walls, windows and floor over a heating season, and why the roof usually loses the most.
Warm air under the roof (English)Warm air rises and collects under the roof, where it costs the most. See how much of the heat bill stratification accounts for, and what mixing the air saves.