August 27, 2026
Residential Air Conditioning
Air conditioning is increasingly being used for winter heating as well as summer cooling. That leads to an obvious question. How much does it actually cost to run? Unfortunately, there is no honest universal answer such as 10 pence or 20 pence per hour. A modern air conditioning system constantly changes its output according to how much heat the room needs. The outside temperature matters. The room temperature matters. Insulation matters. Your electricity tariff matters. The efficiency of the particular system matters. What we can do is explain how the calculation works and give realistic examples so homeowners can understand what affects their own running costs.
August 24, 2026