Hi SunTen,
It would be better to not let the grey water drain continuously. Over time it may build up a layer of ice inside the hose--eventually it may block it totally.
I strongly advise against a digital thermostat. If the power even flickers it may default to an "off" setting. Use a mechanical thermostat instead.
I suggest a cover that is velcroed in place for the shower sky light.
What you need to be concerned about is dew point and condensation. Adding a humidifier may intensify the problem.
It is not necessary or desirable to leave a window open when running an RV furnace.
I would add some radiant electric heaters to the inside of the RV. This may dramatically cut down on propane usage.
I'm outside a local Church in Lancer Saskatchewan running about 4700 watts of heaters (including my electric anti freeze pump heater). It is -6F and I've not burned any propane yet tonight.
SunTen wrote:
We are going to keep the dumping hose out so there will be no water in our grey tanks and will dump the black tank as needed.
I am going to place a ceramic heater in the large storage area with the inside slide door open going to the pumps and the majority of piping. It will be plugged into a digital plug in thermostat. My RV dealer suggested that on the very cold days I have it go to 55 degrees. Otherwise it will see that the heater comes on to heat to 45 degrees. I will also have an outdoor temp sensor in there so I can monitor the temperature from inside the unit. This sensor is connected to the clock I have inside to also monitor the temp on the inside.
I was not planning on sealing up the skylight over the shower.
I do wonder if I should have a humidifier because of the furnace running so much. I am use to having one on my furnace at home. I was thinking about purchasing a small portable one to sit on the counter.
I have heard we should be concerned with moisture but I am not sure where they are referring to.
Also should there be at least a one window with a little crack in it so that everything is not closed up to tight with the furnace running