it was less than 20F outside last night. we have two of these oil heaters. each costs about $1 per day to run.
we have one in the trailer (240 sq ft with 1.5″of insulation in the walls) along with 4 people, a wood stove, and breakfast cooking. it was maybe 40F in the trailer when i woke up.
we have another identical heater in the house (2,400 sq ft with 9.25″ in the walls and 18″ in the attic), hoping to dry paint, and keep the stacked up flooring dry. it was at least 65F when i walked in there this morning. very comfortable.
i am feeling like this extra insulation was a very good choice.
my little helper touching up the paint.