Correct me if I'm wrong, but heat pumps (which we have) will work down to 40 degrees like several posters have stated above.
Now, if you have electric strips, they should give you heat all the time as that is 'electric heat'.
Our home in Southern California (desert) has heat pumps for heat (rarely used).... but, we also have a selection for 'supplemental heat' on the thermostat, which is the electric strip that will 'drink' the electric juice!
MM.
Mr.Mark
2021.5 Pleasure Way Plateau FL Class-B on the Sprinter Chassis
2018 Mini Cooper Hardtop Coupe, 2 dr., 6-speed manual
(SOLD) 2015 Prevost Liberty Coach, 45 ft, 500 hp Volvo
(SOLD) 2008 Monaco Dynasty, 42 ft, 425 hp Cummins