This thread will discuss the suitability for all these heating systems to be off grid.
heat infographic we're working on here:
https://permies.com/t/204534/creating-heat-infographic"
Electric Baseboard
no
Mini Splits
would require a huge amount of off-grid electricity
In Ground Heat Pump
would require a large amount of off-grid electricity
Central Natural Gas Furnace
no
Central Propane Furnace
would require a moderate amount of off-grid electricity
Pellet Stove
typically requires a small amount of off-grid electricity
Wood Stove
yes
Modern wood stove
sometimes requires a small amount of off-grid electricity
Masonry Heater
yes
Rocket Mass Heater
yes