Page 19 - MAPR Brochure Updated

E
OF HEATING
RECIRCULATION METHOD
1 Heated air is discharged from the heater and introduced directly into the space.
2 Warm air begins to rise from the heated level to higher levels of a structure.
3 The hot air in the upper level, which has more energy than the cooler air surrounding the structure, attempts to achieve equilibrium with the colder, external air.
4 Many structures are not air-tight (especially during construction) and contain small openings in walls and around windows. During the winter, cold air is drawn in through these openings and warmairin theupperlevelsescapesthrough openings near the roof. This is how a building naturally “breathes.”
5 Warm air from the heater mixes with the
air in the building and is recirculated through the space using fans. The heater is designed to sense the facility’s temperature, cycle
the burner, and keep fans active to mix the
air continuously.
6 Heat loss from a structure is minimized since the fans recirculate the heat within a space.
7 Buildings that are relatively air-tight often benefit from dehumidification equipment, particularly if low relative humidity is necessary to meet construction requirements, codes, or other standards.
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3 HEAT LOSS MINIMIZED BY USING FANS 2 WARM AIR
MIXED AIR 5 1
HEATER FUEL HOSE INSIDE WORK SPACE
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4 BUILDING ENVELOPE
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