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6
Direct Gain Heating Strategy
Direct Gain Heating Strategy is the most common passive solar heating system. Sun is admitted which heats the thermal mass surfaces. It is a simple strategy which offers large amounts of daylighting. It is a good strategy when coupled with night ventilation.
The thermal mass surface is typically 3x the southern glass area (avoids sunny overheating). The mass is minimum 4" thick.
Problems include glare, sunny-day overheating, large night heat-losses and faded furnishings.
The thermal mass surface is typically 3x the southern glass area (avoids sunny overheating). The mass is minimum 4" thick.
Problems include glare, sunny-day overheating, large night heat-losses and faded furnishings.
