How to Determine the Water Heater Energy Factor
{"Image ImageWidth": "3744", "Image ImageLength": "4937", "Image BitsPerSample": "[16, 16, 16]", "Image Compression": "Uncompressed", "Image PhotometricInterpretation": "2", "Image ImageDescription": "A plumber is performing maintenance on a residential water heater", "Image Make": "Canon", "Image Model": "Canon EOS 5D Mark II", "Image Orientation": "Horizontal (normal)", "Image SamplesPerPixel": "3", "Image XResolution": "300", "Image YResolution": "300", "Image PlanarConfiguration": "1", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS5 Windows", "Image DateTime": "2013:06:02 23:18:00", "Image Artist": "Photographer: Alexey Stiop", "Image Copyright": "Alexey Stiop", "Image ExifOffset": "448", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "300", "Thumbnail YResolution": "300", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1102", "Thumbnail JPEGInterchangeFormatLength": "6195", "EXIF ExposureTime": "1/80", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Manual", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2013:02:23 19:21:09", "EXIF DateTimeDigitized": "2013:02:23 19:21:09", "EXIF ShutterSpeedValue": "790241/125000", "EXIF ApertureValue": "2485427/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "4", "EXIF MeteringMode": "Spot", "EXIF Flash": "Flash fired, compulsory flash mode", "EXIF FocalLength": "32", "EXIF SubSecTimeOriginal": "94", "EXIF SubSecTimeDigitized": "94", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "3744", "EXIF ExifImageLength": "4937", "EXIF FocalPlaneXResolution": "5616000/1459", "EXIF FocalPlaneYResolution": "1872000/479", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Manual Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF CameraOwnerName": "Alexey Stiop", "EXIF BodySerialNumber": "2321307145", "EXIF LensSpecification": "[24, 105, 0/0, 0/0]", "EXIF LensModel": "EF24-105mm f/4L IS USM"}