Please can you share any experience installing a underlayment to help with imperfections and or help with insulation in cold temperatures?

I can't imagine how fogging would work: some of the (toxic) molds are resistant to extremes of temperatures.

Also, as was mentioned earlier, you have more control of the temperature and therefore more control of your expenses.I hope this newbie opinion helps.Darrell

Mistakes can be made in any market temperature regardless of economic factors. 

It should have learned that the temperature inside has a lot to do with the temperature and humidity of outside.  

We have had some drops in temperatures which always allows for possible pipes to be frozen, but nothing too extreme.  

@Tuline MaDepending on the sound, it could be the house expanding and contracting as the house heats/cools with the daytime/nighttime temperatures.

That is pretty much a death sentence for a landlord because frigid temperatures combined with FEET of lake effect snow all the time does't motivate anyone to move.

Im looking for a way to supplement (save $$) on a current system in one of my rentals and i am looking at having a Hyper-Heating H2i System installed-supposedly it can cool and heat within temperature paramaters.

It's called a BTU meter, measures the temperature and flow of incoming and outgoing water to determine how many BTUs the tenant has used.