Ventilation

Question 1

What is ventilation required for?

Answer 1

Air for combustion, Dissipate heat, Remove condensation, Provide fresh air

Question 2

What is Adventitious Ventilation?

Answer 2

Air that enters the building through cracks or gaps around doors and windows

Question 3

What are the requirements for a flueless gas heater?

Answer 3

Never used in a bedroom/bathroom
Max 4.2KW (not too much combustion)
Adequate ventilation (manufacturer instructions)
Oxygen depletion sensor (ODS)

Question 4

What are the ventilation requirements for a flueless gas heater?

Answer 4

12k MM² Split between high and low points 6k² each with 1.6m gap (size of average human roughly)

Question 5

What is the minimum vent size for a flueless gas heater?

Answer 5

6500mm²

Question 6

Ventilation requirements for a tumble dryer?

Answer 6

Under 3kw (domestic) temporary vent (openable window) minimum 6500mm² or else ducted outside

Over 3kw (industrial/commercial) Permeant duct 6500mm²

Question 7

Open flue and room sealed flue ventilation requirements?

Answer 7

450mm² per KW for outside - 900mm² per KW for through a room and x2 for room sealed