As a general rule you can expect a gas tankless water heater to achieve an efficiency rating of 80 to 85.
Tankless water heaters gas or electric is better.
Expected energy savings over equipment lifetime.
Fuel prices fluctuate but currently the price of gas is lower than electricity.
Gas tankless water heaters are capable of delivering more hot water over 8 gpm than electric systems.
Electric tankless water heater an electric tankless water heater is capable of delivering 8 gpm of hot water.
Electric tankless water heaters are on average more efficient.
We rated the annual energy consumption cost excellent for a gas.
They can reach ef of 0 98 while gas powered ones reach ef of 0 9.
Prices of natural gas and propane are usually lower than the price of electricity.
Electric tankless water heaters are extremely energy efficient with more than 98 of energy supplied to the units actually be used to heat the water.
Similarly if you often suffer from power shortages a gas heater is going to be the better choice provided you choose a unit with no electrical components.
Tankless gas or electric 45 60.
Type of water heater.
Gas water heaters of all types also contribute to greenhouse gas emissions.
On the other hand gas tankless water heaters generally have an energy factor of less than 85.
If your home lacks access to both natural gas and propane the obvious answer to the electric versus gas tankless water debate is electric.