You'd be totally fine to install your RV cover on your Forest River 30VSK in 40 degree weather. The big thing is definitely your safety so waiting till there's no snow or ice on the roof of it will be the key. The colder weather does not make the roof more likely to damage so in that regard you'd be fine as well. view full answer...
Yes the Progressive Dynamics Mighty Mini AC/DC Panel and Converter Charger part # PD4045KA can be mounted vertically. In most situations it is horizontal but there are no balance type sensors that would be negatively effected by the alternate position. view full answer...
We don't offer a Greystone F2712B, and I can't find any information regarding this model to give you an alternative with similar specs. We have numerous replacement RV fireplace options though, and to find one that can work for you, just measure the space of the cut out you have.
For example, the Greystone 26" Electric Fireplace with Crystals # 324-000068 requires a 26-1/4" wide x 20-1/2" tall x 5-3/8" deep wall cut out.
I have added a link below to our entire selection of RV fireplaces... view full answer...