Marshall Co REMC Rebates Electric Water Heater Rebate Who Qualifies? Members who are replacing a non-working electric water heater, building a new house, or replacing their existing gas water heater. What are the requirements? Water heater must be electric and 40 gallons or larger. How much is the Rebate? $100 bill credit How to apply for a rebate? Please contact Brian Perry, our Member Services Manager, to apply for a rebate or for more information!