Just as an fyi to anyone else interested in this question. I spoke with the plasterer and he told me 3 days as long as it was latex paint. If it was oil then it would be at least 30 days. I also had another conversation with a different paint store and they told me that no paint co. would ever tell you less than 30 days. So the answer differs whether you are a plaster co. or a paint co. Evidently paint blocks or interferes with plaster curing which can affect its bonding to the blueboard. I am waiting 3 or 4 days and then at least doing the primer latex coat. It's my kitchen so I can't wait longer than that. Denise

If the wall feels clammy, especially at corners or anywhere the durabond is thickest, you need to wait. Nothing can stick to damp compound. It will take the longest to dry where it is coolest and has the least air movement, so a fan and space heater can really help. The unical by itself was ready to paint in 24 hrs as a veneer plaster, I'm really only concerned about the durabond areas. Casey

They have compounds which dry in 5, 20,45 minutes, depending on how fast you can work with the taping knife use the right drying-time compound you feel comfortable to work with. Usually, we would use 5 min compound if you have a deep void and use 45 min compound for the last coat if you plan to do the work the same day. If you can wait overnight you can do the last skim coat with a regular compound. They come in small packages (3LB) it should be enough for the base coat for that area.

I'm in an all-electric house, with (air source) heat pump HVAC and electric appliances - I kinda wish I'd shopped for a heat pump dryer, since an electric dryer is such a beast with respect to energy usage, but I didn't really think about it at the time since I have a dryer vent. I would guess that it will be 3-5 years before the demand grows and more models become available. There's an increasing need for less space and I think that will be matched with an increased demand for no (external) venting. Unless you'll be storing your solar energy with your own battery (bank), you may want to consider an automatic generator that will start up in case of a power failure.