An older measure of water heater overall efficiency that is being phased out due to new test methods for water heaters.
Tankless natural gas water heater ef 82 or higher.
I am in the market for a new water heater and this would sweeten the deal but i don t see any such products in big box stores.
This natural gas tankless water heater has a 95 thermal efficiency and is intended for residential and commercial use.
Review of propane natural gas hot water heaters 2020 last updated on.
Qualified natural gas tankless water heaters with 0 82 or higher energy factor qualified natural gas tankless water heaters with 0 82 or higher energy factor company trade name model e f.
More than 45 energy star models available.
According to energystar if a gas tankless water heater with a 0 82 energy factor were installed it would consume 183 therms per year.
Let s think about three basic options to keep it simple.
Rinnai value series outdoor 5 6 gpm residential 120 000 btu natural gas tankless water heater model v53den 555 60 555 60 unit.
Rheem manufacturing ranks as the global leader in the manufacture of high quality sustainable and innovative water heaters tankless water heaters air conditioners furnaces pool heaters and hvac systems for residential and commercial applications and is a full member of ahri the air conditioning heating refrigeration institute.
Many are eligible for state and local rebate programs making them an even better choice.
That means that 58 60 of the energy that is being used to heat your water is effectively converted into heat.
Enbridge has a 500 rebate for 0 80 ef or higher tanked natural gas or propane water heaters.
Any idea if these exist or tankless is the only option in this efficiency range.
Like our aerotherm heat pump water heater our infiniti k series tankless water heaters and our ef series gas water heaters and more all designed to save energy and money.
3 best tankless gas water heater.
Business owners will love it for its energy saving technology and the heat at up to 185 f.
For a typical gas tank water heater oh this would represent a savings each year of roughly 30 or 78 therms.
Ef is determined by the department of energy s test method outlined in the 10 cfr parts 200 to 499 edition revised as of january 1 2014.
Ok i have a gas water heater are we done yet.
It is compact 10 x 18 5 x 26 in but pretty heavy weighing 82 pounds.
The higher the ef value is the more efficient the water heater.
Most new water heaters have an efficiency factor ef of 58 60.
Standard energy star and tankless.