Hot Water Boiler Supply and Return Pipe Sizes
| Boiler Model |
Supply Header Size (in) |
Supply Water Riser Connections |
Return Header Size |
Return Water Connections |
||
| Quantity | Size (in) | Quantity | Size (in) | |||
| 32-475 | 2 | 1 | 2 | 2 | 1 | 2 |
| 32-570 | 2 | 1 | 2 | 2 | 1 | 2 |
| 32-665 | 2 1/2 | 1 | 2 1/2 | 2 1/2 | 1 | 2 1/2 |
| 32-760 | 2 1/2 | 1 | 2 1/2 | 2 1/2 | 1 | 2 1/2 |
| 32-855 | 2 1/2 | 1 | 2 1/2 | 2 1/2 | 1 | 2 1/2 |
| 32-950 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1045 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1140 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1235 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1330 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1425 | 3 | 1 | 3 | 3 | 1 | 3 |
| 32-1520 | 3 | 2 | 2 1/2 | 3 | 2 | 2 1/2 |
| 32-1615 | 3 | 2 | 2 1/2 | 3 | 2 | 2 1/2 |
| 32-1710 | 3 | 2 | 2 1/2 | 3 | 2 | 2 1/2 |
| 32-1805 | 3 | 2 | 2 1/2 | 3 | 2 | 2 1/2 |
| 32-1900 | 3 | 2 | 3 | 3 | 2 | 3 |
| 32-1995 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2090 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2185 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2280 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2375 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2470 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2565 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2660 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2755 | 4 | 2 | 3 | 4 | 2 | 3 |
| 32-2850 | 4 | 2 | 3 | 4 | 2 | 3 |