Running cost calculator

Running cost estimator

Less than most people expect. Inverter systems slow down once the room reaches temperature, and in heating mode they deliver three to four times more heat than the electricity they use.

• 3–4× more heat out than electricity in
• Pennies an hour for a typical bedroom

Estimates use a typical 60% average load, cooling efficiency of 4.0 and heating efficiency of 3.5. Change the price to match your tariff.