Pretty much. The energy used by the heating elements is the same to heat a
gallon of water (say, from 50 to 130) on the old unit as the new. If you
want to offset the heat loss in non-heating months, add a wrap of insulation
and it will be as good as the new units.
Reasons to change are: old heater has a buildup of minerals in the bottom,
dip tube is corroded and not functioning properly, unit is about to spring a
leak after so many years.
Actually it is in the basement pretty close to the sump pump hole so if it
springs a leak it would not be a big deal except for the incovienience. I am
going to probably replace it here soon. Actually you are right, they don't
make them like they used to. This thing is a real tank. Very heavy duty
looking, however, it does not have a dip tube at all, the pressure relief
valve is on the hot line just outside the tank, and the cold water enters
the tank at the bottom. I just hate to replace it when it is working fine.
Oh by the way, I do have a timer on it. As for the insulation, it is
fiberglass. I do not have NG so I heat with Fuel Oil. However I used to have
a house that was all electric. This is pretty popular in this area. My
electric is about 8.5 cents per KWH and that house cost me less electric
than this place and it is a smaller house. So we will see if the bill
decreases with the new heater.
So you are getting a new water heater?
You could put a pan underneath it and not put in the pipe going to the
pump unil later, when you're convinced you need it.
My sump has a plastic lip around it, that mates with the big plastic
lid. Water would reach the sump but not go in. I drilled 3 or 4
holes in the lip, but they didn't have much effect, I think. I didn't
want to cut off whole sections of lip. I only had one time when
there was enough water on the floor to test. But water went in many
directions anyhow, and not just towards the sump.
Actually, heat loss is also a function of the difference in temperature, so
you have less surface area, the hotter water, and thus the hotter tank shell
heat faster, so I doubt there is much difference.
That is a decidedly Yankee point of view, you need to consider that to
a lot of the country, mid summer is the "unseasonable weather". I
spend at least 3 times as much cooling as I do for heating, it is like
January, February and summer.
You probably pay 50-100% more per Btu for electricity, so any heat you
get just cost alot more than your gas furnace can provide, they do
sell electric furnaces but I bet nobody has them anywhere near you.
Because they cost to much to run. Is yours foam insulation, how thick.
Look at E.F. - Energy Factor ratings for electric water heaters,
www.energystar.gov they dont loose alot of heat and are efficient.
You can get a new heat pump electric water heater but it costs alot
and may not have a payback. Getting a few insulating blankets would be
the cheapest way to upgrade but is it near the end of its life.
Putting on thermal unions on a new install will save alot.
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