Radiator at a window with an illuminated thermostat, heating costs

additional an aparatus apartment apartments appliance appliances architecture associated at attendant blur blurred blurriness blurring blurrings blurry blurs building buildings central charges condo condominium condominiums condos consumption control controller controllers costs element elements energy energy saving expenses extra extras flat flats focus furnace furnaces fuzziness heat heater heaters heating heats house houses illuminated illumination illuminations indoor indoors inside interior lamp lamps light lighting lights lilac lit night night time nights nighttime nobody of out out of focus photo photograph photographs photos power power saving purple radiator radiator radiators red saving service shot shots system systems thermostat thermostatic thermostats time unfocused up use valve valves violet warm warming warmness warms warmth window windows windowsill windowsills with