| Intended Household: | 3-4 Person |
|---|---|
| Capacity (Gallons): | 48 |
| BTU Input: | 37000 |
| Fuel Type: | Propane |
| Vent Size: | 4" 3" |
| Vent Type: | Atmospheric |
| Water Connection: | 3/4" |
| ASME: | No |
| Max Pressure (PSI): | 150 |
| Gas Connection: | 1/2" |
| 1st Hour Delivery (Gallons): | 88 |
| R-Value: | 8 |
| Energy Star Rated: | No |
| Recovery 90°F Rise: | 41 GPH |
| Energy Factor: | 0.60 |
| Height (Inches): | 60.75" |
| Depth (Inches): | 21" |
| Diameter (Inches): | 21" |
| Weight (lbs): | 148 lbs |
| Warranty: | 6 Year Tank/6 Year Parts Limited |

Height (Inches): 60.75 Diameter (Inches): 21"
The warranty info is 6 yr Tank/6 yr Parts Limited. The complete document can be found here: https://s3.amazonaws.com/s3.supplyhouse.com/product_files/Ao-Smith-GCG-50-Warranty.pdf
Brad, All models approved for installation from sea level to 10,100 ft. elevation.
All models approved for installation from sea level to 10,100 ft. elevation and the Propane Version would be this: https://www.supplyhouse.com/AO-Smith-GCG-50-LP-50-Gallon-ProLine-6-Yr-Warranty-Residential-Gas-Water-Heater-Tall-Model-LP-Gas
The tank is made of 444 stainless steel.
That would depend on local codes and free area of the louvered door.
The unit comes standard with the aluminum anode rod.