Have HVAC Questions? Ask an HVAC Expert for Answers
There a large variety of different types and brands readily available. If you are a homeowner your best bet will be one of the big box stores like Lowes or Home Depot.
Below are some of your options:
Tank water heaters (conventonal natural draft vent)
Tank water heaters with a fan assisted vent
Tankless water heaters (provide hot water on demand )
All of above are available in a variety of sizes and both gas or electric.
My recommendation is Lowes.They will help you decide which is best for your situation