At the end of this, I have a link to my personal installation I did myself. With this installation, the original idea came off the Casita
site...dont remember the name..I think it's on my Flickr link below.
I think the confusion between "analog" and "digital" should possibly be reworded and compared as "mechanical" to "electronic".
I installed a $25 Hunter to my 2010 Scamp. I did not get the furnace...still wouldnt. But my Coleman A/C has the heat unit. This setup works off a relay tripped by my thermostat. I also have a 120v plug attached and run a small cheap floor heater via the thermostat (but not at the same time!).
People can argue all they want, I can hold my 13' Scamp within ONE degree if desirable. But there's ONE secret to this that I have not found mentioned anywhere else. Steve makes mention of this and that's the effectiveness of the (or ANY) thermostat! Its default location at the end of the cabinet is a "Dead air" area. I found this out the hard way with my Hunter when it TOO was varying 10-15 deg when testing!!
The answer? I put a small micro fan inside the thermostat which circulates the air through it that other wise was flowing over the top of it down into the cushions. This is now how I can vary my temps (hot or cold) within 1 deg. The Hunter has 3 settings that lets you vary the difference you desire with up to 3 deg difference between cycles if you want. Hunter calls the setting: Span 1, 2, & 3.
This link to my installation shows how I installed the fan and it has worked for the past 5 yrs without ONE problem. Honestly, I can say the temp in my Scamp is more comfortable than my house. Sorry I just sleep better in a cool environment with my asthma.
The only thing with this installation, it shuts the entire unit down (fan and compressor) between cycles. My home central unit does the same. This is actually a very simple concept. Oh..I like the Indigo light
at night. I can roll over and easily adjust the temp 1 deg at a time and/or look at the time. :-)