Tankless Gas Water Heater Installation Requirements

The requirements will differ depending on what jurisdiction you live in.

Tankless gas water heater installation requirements.

Many cities and communities now require permits to be obtained and inspections to be conducted before and after the installation of a tankless water heater. Mount the tankless water heater to the wall using the existing wall studs or build a new frame using 2 x 4 lumber. If reticulating pump in system. Condensing tankless water heaters lower the cost of installation.

Turn off the water electricity and gas supply to the old water heater. Insulation is applied to the entire loop. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. If it is needed install new supply lines for gas and water either solid or flexible.

Once the bracket is installed on the wall using 4 screws hang the. A tankless water heater requires a 4 foot clearance from the side or below a door or window that opens unless the unit is directly vented to the outside. A tank type water heater and a tankless or demand water heater for purpose of comparison. If the water heater is installed above the.

A full bore shut off valve is required on cold water side unions must be installed within 12 inch of water heater to facilitate removal first five 5 feet of water line insulated maintains min. If the window does not open the tankless water heater clearance from a window requires a 12 inch setback. Tankless water heaters generally require larger diameter gas supply lines higher voltage power supply if contemplating electric on demand dedicated special stainless steel flue known as category ii iii or iv or larger diameter exhaust system. Just a few of the permits one may need to obtain include electrical permits gas piping permits and mechanical permits.

Drain and disconnect all the connections. This ef rating is based on test procedures developed by the u s. Home improvement online with ron hazeltonwith over 500 hundred free diy ideas tips how to s suggestions and video tutorials available to help you turn yo. If money or return on investment is the principal reason you are considering converting to a demand type water heater you should perform an accurate total cost analysis that reflects all of the costs to install operate maintain both types of water heaters.

If the heater came with the mounting bracket even better make sure the bracket is even use the level. For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating. Tankless water heater vent clearances if the unit is vented to the outside then it needs 12 inches of clearance from a door or window. Tankless water heaters should not be installed near dryer vents or intake air vents.

Traditional gas tank water heater require venting through the roof.