The True North TN20 is one popular wood heater.
Value for money, this heater is brilliant. It takes the longest length of wood, burns up to 15+ hours, largest cook top, quad-burning system, and has the options for adding outside air.
The full firebrick lining means this heater can not only burn all night long, but the thermal mass means this heater stays hotter for longer. A true must buy wood heater!