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Using multiple synchronised dataloggers to identify vapour production, ventilation and heat gain/loss.
Here is an example using 10 dataloggers installed in a 5 bedroom Victorian house. Do use it or better still, improve on it and feedback. This is summer version. The summer and winter version is too large (and complex) for upload.
Note always, that dew point is a proxy for vapour quantity, so it can be used to identify vapour gain loss, compared to another room, or the average.
Excel spreadsheet for dataloggers
Excel screen shots
Dew point comparable in °C between kitchen and dining-room, showing that vapour is being ventilated more than produced in the kitchen compared to the dining room. Dew point comparable in % between kitchen and dining-room, showing that vapour is being ventilated more than produced in the kitchen compared to the dining room. Temperature difference in % between kitchen and living room, summer. Dew point difference % between kitchen and living room, summer. Temperature comparable in °C between kitchen and average in winter, showing that temperature is much higher (produced by an Aga). The Aga was turned down mid way. Dew point difference between master bedroom and bathroom showing significant unvented vapour production in bathroom.
