Product Details:
| Application: | Plumbing |
|---|---|
| Intended Household: | 2-3 Person |
| Fuel Type: | Propane |
| Capacity (Gallons): | 38 |
| BTU Input: | 40000 |
| Gas Connection: | 1/2" |
| Water Connection: | 3/4" |
| Vent Size: | 3" 2" 4" |
| Vent Type: | Power Vent PVC CPVC Polypropylene ABS |
| ASME: | No |
| 1st Hour Delivery (Gallons): | 73 |
| Energy Factor: | 0.70 |
| Max Pressure (PSI): | 150 |
| Recovery 90°F Rise: | 44.7 GPH |
| Max Altitude (Feet): | 10100 |
| Diameter (Inches): | 22" |
| Height (Inches): | 59" |
| Depth (Inches): | 29-1/8" |
| Weight (lbs): | 174 lbs |
| Warranty: | 6 Year Tank/6 Year Parts Limited |

Hey Joe, Technically, you can use a water heater for radiant floor heating since you would need the water to get up to 120 Degrees Fahrenheit, but honestly, you are much better off going with a Boiler for this, as a Water Heater will only last a couple to several years in this application.
The height is 59" from the top of the power vent. The top of the tank down to the ground is 49-5/8".