Avainsanoja: wood, chopped, work, hard labour, piles, pine, spruce, birch, stock, warehouse, shed, storage, heating, energy

Avainsanoja: house, home, temperature, hot, warm, energy, level, degree, celsius, nobs, lights, display, device, heating, central, control, unit, setting, on, CO2, warming, plus, minus, signs, up, down, arrows

Avainsanoja: oil, energy, Teboil, expensive, fuel, warming, home, house, heating, system, home, delivery, winter, truck, tank, pipes, lights