The tank electric water heater *I'm replacing* is larger than any
tankless
model, therefore, if I go that route (tank), I would want to keep it where
it currently sits next to the furnace (which is on an interior basement
wall), because I can enclose both in a mechanicals closet. ?This placement
situation is what would lead to my needing a powervent ($$) model *if* I
decide to go with the gas tank model. ?*If* I go tankless, the space
requirement would not be as great, and I could easily move it against an
exterior basement wall (next to the main) which would cause more effort in
plumbing from the tankless to where the existing hwh pipes are, but would
save me money during installation because venting would be cheaper. ?The
double-walled stainless steel vent pipes for tankless models are *not*
cheap.

sorry I wasn't clearer 1st time around.

jc- Hide quoted text -

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electric tankless for large family? live where it gets cold in
winter?

nooo, i'm replacing an *electric* hwh with either a gas tank hwh *or* a gas
tankless hwh.



just figure on a MAJOR elecrical upgrade 200AMPS just to heat water,
plus 200 amps for your existing service.......

the electrical upgrade will cost thousands

all the bwater heated MUST be heated instaneously, that takes a lot of
current.

since electrical water heating is 100% efficent less just minimal tank
standby losses you will never save any money.;

had a friend price a electrical tankless 5 grand for install.

the vent line is a minor issue...


your power company should be asked they may need to upgrade lines and
or transformer in your area....

were you trying to save energy / money or desiring unlimited hot
water?