[Greenbuilding] Hot Water Heater options

[Bambi Tran]

I'm trying to figure out the energy-efficient, and life-cycle cost-effective hot water heating option for the following affordable rehab project... please advise!
   
  -- 1000 sf rowhouse in Washington, DC
  -- 3-4 people
  -- 1 full bath, 1 half bath, laundry (washer/dryer), kitchen with dishwasher and sink... all within 20 feet of each other
  -- available utilities: gas, electric
  -- mechanical room in unfinished cellar
  -- current water heater is an old (1980s), 40 gal, gas water heater
   
  Cheers,
  Bambi Tran

 		
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