Tankless Water Heater Requirements

As a general rule any gas heater which is tankless uses combustion air must have a minimum area of 10 000 cu.

Tankless water heater requirements.

Determine the mounting space. You re only looking at 20 to 100 out of pocket as opposed to several hundred dollars to call in a plumber. Around the water heater. Ok so san jose has the following requirements for where to install the tankless water heater.

Measure your cold water temperature. Tankless water heaters can be 8 14 more energy efficient for homes that use a lot of hot water around 86 gallons per day. The models which need combustion air from the outside are required to have a second hose which is supposed to be put in. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.

Simply locate the appropriate water heater sizes on ecomfort using your information. Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. With a condensing tankless water heater you don t need metal venting. Determine your water flow rates.

Vent termination all tankless water heater vents must terminate at least 4 feet from a property line. How to determine the required size of a tankless hot water heater. The higher the energy factor the more efficient the water heater. For a household of one or two people a tankless electric unit will probably be adequate.

Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. Non condensing tankless water heaters typically transfer to the water only about 80 percent of the heat they generate. The remaining heat creates a hot exhaust gas that requires metal venting typically stainless steel or thick aluminum. How much does a water heater permit cost.

Restrictions on gas fueled tankless water heaters no gas appliance may be located in a room used. The first permit is for the water heater itself. Enclosed areas just as closets might need air ducts and extra air inlets.