Gas DHW heater questions
Looking at a gas hot water heater to replace a Marathon electric that is going to go to a rental house of mine with a lower element in its heater that has failed and is so carroded I can't get it out without breaking the tank.
Can a gas heater go in a closet that held the electric? Are powervents more efficient? Is there any point in going to a tankless? Are Vertex heaters more $$ than 2 60 year olds would ever save in efficiency?
You have the issue of a flue pipe, and if in a closet, there must be louvered ventilation inlets both high and low. If the closet is in the bedroom...that is no-go for gas.
are there direct vent heaters that draw outside air for combustion?