I’m in the process of converting from a single furnace heating/Air Conditioning plant to two seperate systems; A heat pump in the attic for the second floor and an oil fired furnace for the first floor. Both will also provide air conditioning to their respective floors. How do I calculate heat loss to appropriately size the units?
The longer length of these 3-in. stair gauges makes it easier to ensure an accurate layout when working with waned lumber.
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