We usually run our wave on low at night. In 20+ outside it will hold the camper in the high 50's. When we get up I put the wave on high, turn own the furnace set it to 74 or so... after the camper warms up the furnace will not cycle and things are comfy in the camper. If it is cold outside 30+ we will leave the wave on low all day.
You will learn to fine tune to get the warmth from that wave.
Love to have the vent open and a side window by the bed.. Get that fresh crisp air and still the living area of the camper stays warm from the Wave's radiant heat.
Radiant heat is like a campfire. You can be 10+ feet away and feel the heat even with the wind blowing. Try that with our furnace and see if you can feel the warmth.
I have found that having the Wave as low to the floor works better than up on a counter. Heat rises eh? Getting the floor a bit warm helps a lot.
When you are not using the wave make sure you cover it! Even dust contaminates the pad!
Jim