Tankless Gas Water Heater Electrical Requirements

Determine the mounting space.

Tankless gas water heater electrical requirements.

Electrical even gas water heaters have electrical parts and need to be hooked up to your breaker box. 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. In order to ensure your safety and qualification for the limited lifetime warranty a licensed professional must install your system.

How to determine the required size of a tankless hot water heater. 1 x 6 awg copper. Today tankless water heater energy factors range between 64 and 91 for gas fired models and up to 99 for electric models. Btu restrictions a 200 000 btu input tankless water heater requires an opening or vertical duct at the upper and lower locations with the equivalent area of an 8 inch round duct 50 sq in.

Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise. Double the area for horizontal ducts. Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home. 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.

Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted. A tank type water heater and a tankless or demand water heater for. 2 x 10 awg copper. Measure your cold water temperature.

Carpentry although you won t be working with wood you need to be familiar with levels to ensure a level base and may need to anchor pipes to ceiling beams. Simply locate the appropriate water heater sizes on ecomfort using your information. Breaker size and wire gauge must meet all applicable local state provincial and national electrical codes for your area these are only guidelines that will apply to most installations.