Gas Tankless Water Heater Installation Requirements

Restrictions on gas fueled tankless water heaters no gas appliance may be located in a room used for sleeping a bathroom a clothes closet or in a closet or other confined space opening into or having access from a bedroom or bathroom.

Gas tankless water heater installation requirements.

This ef rating is based on test procedures developed by the u s. Electrical even gas water heaters have electrical parts and need to be hooked up to your breaker box. For both gas and electric models a tankless water heater s overall energy efficiency is measured using an energy factor ef rating. Gas line requirements all new and altered gas piping systems must be pressure tested as prescribed.

If it is needed install new supply lines for gas and water either solid or flexible. The water heater can deliver water at only one temperature setting at a time. A tank type water heater and a tankless or demand water heater for. Mount the tankless water heater to the wall using the existing wall studs or build a new frame using 2 x 4 lumber.

Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. Plumbing the most important skill is needed for working with both gas and water lines installing fixtures and ensuring there are no potential leaks or pressure issues. Electric units have measurements in the 10 inch high to 7 inch wide range while gas fired. 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.

6 rv53i rv53e operation and installation manual this water heater will attempt to provide hot water at the temperature setting even when the water flow is varied or when more than 1 tap is in use. Turn off the water electricity and gas supply to the old water heater. This guide outlines a typical gas tankless water heater installation with easily available tools and materials. The available temperatures for a given model are provided below.

Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. Although condensing tankless units require this additional step and are a bit more expensive than non condensing models their cooler exhaust gas temperatures allow for the use of less expensive plastic venting pipe whereas the high temperature flue gases of non condensing tankless water heaters require more costly stainless steel vents. Cpc508 5 provide gas line sizing calculations and isometric riser diagram of the gas delivery piping system for the equipment with permit application.