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Written for the moment before you book anything — when you are still working out what the system is doing and whether it needs someone.
One diagnostic question, one decision, and the one that turns out to have six possible answers.
Working out what a cooling system is actually doing.
The decision questions worth answering before you spend.
Planned work, and when it is worth arranging.
Furnaces, heat pumps, and heat that is not behaving.
Airflow, distribution, filtration and humidity.
If you already know what the system needs, there is no reason to read an article about it first.
10 articles · more added over time
Where NextGen serves