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If you choose not to use a Preferred Plumber, you can still receive the MGE incentive in the form of a credit to your bill. To receive the bill credit, you must complete the rebate form and mail it to MGE with a copy of your receipt and proof of installation within 90 days of purchase.
How efficient is your current water heater? The Energy Star rating as well as other energy details can be located on the water heating unit, it’s box and on the Energy Star web site.
MGE is offering one of the following incentives to customers for switching to high efficiency natural gas water heating.
Tankless System – $200
Tank – $40
The guidelines to qualify for these incentives are:
All water heating systems must meet Energy Star criteria to qualify.
Installed water heating appliance must utilize natural gas.
You must be an active residential MGE customer. Final bill or inactive accounts are ineligible.
Builders, Developers and Landlords are eligible for residential applications only.
Energy Star Water Heater Criteria
RESIDENTIAL WATER HEATERS — ELIGIBLE PRODUCT TYPES
High-Efficiency Gas Storage
Gas Condensing
A nominal input of 75,000 BTU/hour or less and a rated storage volume from 20 to 100 gallons.
Whole-Home Gas Tankless
A nominal input of over 50,000 BTU/hour up to 200,000 BTU/hour and a rated storage volume of 2 gallons or less.
A water heater model must meet all of the identified criteria to be labeled as ENERGY STAR.
HIGH-EFFICIENCY GAS STORAGE
Energy Star Criteria
Energy Factor
First-Hour Rating
Warranty
Safety
Gas Storage
(Ending 8/31/2010)
EF ≥ 0.62
FHR ≥ 67 gallons per hour
Warranty ≥ 6 years on sealed system
ANSI Z21.10.1/CSA 4.1
Gas Storage
(Beginning 9/1/2010)
EF ≥ 0.67
FHR ≥ 67 gallons per hour
Warranty ≥ 6 years on sealed system
ANSI Z21.10.1/CSA 4.1
GAS CONDENSING
Gas Condensing
EF ≥ 0.8
FHR ≥ 67 gallons per hour
Warranty ≥ 8 years on sealed system
ANSI Z21.10.1/CSA 4.1
WHOLE-HOME GAS TANKLESS
Whole-Home Gas Tankless
EF ≥ 0.82
GPM ≥ 2.5 over a 77° F rise
Warranty ≥ 10 years on heat exchanger and 5 years on parts
ANSI Z21.10.3/CSA 4.3
Glossary of Terms
Energy Factor (EF): Energy Factor is the ratio of useful energy output from the water heater to the total amount of energy delivered to the water heater. The higher the EF is, the more efficient the water heater.
First-Hour Rating (FHR): First-Hour Rating is the amount of hot water in gallons a storage water heater can supply per hour (starting with a tank full of hot water).
Gallons per Minute (GPM): Gallons per Minute is the amount of hot water in gallons a tankless water heater can supply per minute over a 77°F temperature rise.
Temperature Rise: The difference between the temperature of the hot water exiting the heater and the cold water entering the heater. If you want a shower of 110°F and you live in south Florida with groundwater at 70°F, then that is a 40°F temperature rise (110-70=40).
