| There are different gas water heaters available in | | | | heating unit and at the chimney with high |
| the market so you need to choose the right one | | | | temperature silicone caulk. |
| for your home. Check for the Energy Factor (EF) | | | | 5. If the galvanized duct is longer than five feet, |
| rating before buying a gas heating unit for your | | | | support it using galvanized hanger strap. Screw |
| home. The higher the EF of the water heater, the | | | | the strap to one end of the ceiling joist, loop |
| more efficient it is. | | | | around the duct, and then screw the other end. |
| EF rating of at least 0.61 is recommended for | | | | The duct is now in the middle of the hanger, |
| homes and an outside combustion air source | | | | looking like a letter "U". |
| should be devoted for it. Use the first hour rating | | | | Tips and Warnings |
| to size the system and to ensure that the heater | | | | If you're working on how to properly vent a gas |
| is capable of supplying hot water for the | | | | water heater, first, make sure that you are |
| household needs. | | | | aware of the venting requirements in your |
| Venting to the Chimney | | | | community, which includes the type and size of |
| The simple steps in venting your gas water | | | | vent pipe to be used and the venting method |
| heater are as follows: | | | | that is acceptable. In this way, whatever work |
| 1. Secure the required galvanized metal duct and | | | | you do will not be useless. |
| galvanized metal elbows after measuring the | | | | All the materials needed for installation should be |
| distance between the heater and the chimney. | | | | provided and you need to follow the specified |
| 2. Drill a hole on the chimney that is a quarter of | | | | procedures safely. And if you are planning to vent |
| an inch larger than the duct size. | | | | through the chimney, inspect it first so that you |
| 3. Slide the galvanized metal duct into the hole and | | | | will know if it can hold water heating equipment. |
| install it starting at the water heater then the | | | | Take the necessary precautions. You should be |
| chimney, making sure that they are pitched up | | | | equipped with safety glasses and working gloves. |
| toward the chimney. This will allow the proper | | | | The edges of galvanized duct are particularly |
| rising of the hot combustion gas. | | | | sharp and can easily cause hand and eye injury. |
| 4. Joints are connected together by slipping its | | | | The duct run must be kept short to avoid the |
| non-crimped end above the crimped end then seal | | | | condensation of warm combustible gases in the |
| all the connections, which includes those at the | | | | duct. |