water heater with Energy Factor of 2.0 or greater to a standard natural gas water heater with labeled “Mean” of Table 18 in page 5-34 is used to derive an adjustment factor that scales average summer usage to summer weekday usage.
energy factor M mass of water drawn (lbs) (kg) C specific heat of water, (Btu / lb – (F) (k./kg – (C) p QIn = total water heater energy consumption (Btu/day) Physical Characteristiscs of the Water at mean of Tin & Tout at test conditions dens 8.2938 (995.25) lb/gal
2013 Water Heater Rebate PAGE 1 OF 2 MN CHARGE CODE 4363 12-11-314 | 11/2012 | CRS 0677 Read all rebate qualifications on the back page of this form. Energy Factor Self-Installed Install/purchase date Itemized equipment purchased 2.
Here are some things to look for in a water heater that mean it’s a better value for you: the more you get for your money. • Energy Factor – The higher the Energy Factor on your water heater the lower your annual cost of operation will be. Choose an Energy Star compliant model for
water heater type, using efficient system design, The energy factor (EF) indicates overall unit efficiency based on higher efficiency, they do not always mean lowered operating cost, especially when fuel sources are compared.
Doesn’t necessarily mean it will cost less to run. the cost of a water heater purchase and its energy bills spread out over the system’s install, or rated with the highest Energy Factor (EF). To make a truly informed decision,
A high-efficiency water heater uses 10-50 percent less energy than its standard counterpart. Compare the energy factor (EF) Remember, however, that a higher EF may not mean lower annual operating costs if the heater requires a more expensive fuel.
Storage Tank Volume Energy Factora Annual Energy Useb Energy Factor is an efficiency ratio of the energy supplied in heated water divided by the energy input to the water heater. b) Based on DOE test procedure (10 CFR 430, Sub-Part B, energy will mean a stronger economy, cleaner
water heater. The higher the energy factor, the more efficient the water heater will be. Recovery rate is the amount of water that is heated to a set temperature, per hour. An example might be that a water heater has a recovery rate of 30 gallons of water per hour at 80
60 and 80-gallon tank options mean more energy created through the heat pump water heater, utilizing the elements only for conditions when Model Gallon Energy Factor by Mode First Hour Rating by Mode Dimensions (Inches)
The water heater’s efficiency is measured as an Energy Factor (EF), which is usually listed beside the EnergyGuide label. The higher the number, the more energy efficient the water heater. A BETTER FUTURE
Conventional models, which could mean a savings of more than $60 over the lifetime of the unit. Programmable Thermostat ($25) Electric Water Heater with an Energy Factor (EF) of 0.93 or Higher for Your Home (Tankless and Hybrid models do not qualify)
EF—Energy Factor: The measure of a water heater’s efficiency. EF is based on recovery efficiency, standby losses and cycling losses. The higher the EF, the more efficient the water heater. End-Use Customer: A customer who acquires