Friedrich PROH40 T0 FD120-MSO Running Cost (Electric Water…
Friedrich PROH40 T0 FD120-MSO: running cost
The Friedrich PROH40 T0 FD120-MSO is certified by ENERGY STAR at 780 kWh a year, one of the cheaper models in its category to run among electric water heaters currently certified.
That $147 is priced at 18.8¢/kWh, the average of all 51 state rates this site tracks. Your own state's rate is one click away.
Efficient, or not, for a electric water heater
Against the category average of 1,105 kWh/yr, this model uses 29.4% less, ranking 10 of 596 electric water heaters tracked here for running cost. That average is drawn from all 596 electric water heaters ENERGY STAR currently certifies, not an outside number, a $61/year gap from this model at the national rate. Full sourcing is in the sourcing notes.
Right next to it on the list
A rank or two either side of the Friedrich PROH40 T0 FD120-MSO: Friedrich PROH40 T0 FD120-M ($147/yr, 780 kWh/yr), then Rheem PROPH40 T0 RH120-M ($147/yr, 780 kWh/yr).
Same brand, different models
Ranked 2 of Friedrich's 29 certified electric water heaters, this sits between the PROH40 T0 FD120-M ($147/yr, the brand's cheapest) and the PROH80 T0 FD120-MSO ($264/yr, its priciest).
What this adds up to over time
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the Friedrich PROH40 T0 FD120-MSO that long and it costs about $1,613 in electricity, on top of whatever it cost to buy.
Is it worth replacing?
Efficient as certified electric water heaters go, $147/year is a reasonable baseline if you're comparing what else is on the market.
See what else is certified in this category before you decide.
If you're keeping it
Whether or not the Friedrich PROH40 T0 FD120-MSO ever needs replacing, a repair is the more common failure for a electric water heater, one a protection plan budgets for ahead of time.
Where this number comes from
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. Ranked 10 of 596, the Friedrich PROH40 T0 FD120-MSO sits in the middle of the electric water heater category, see the guide to why your state changes this number for the other half of the math.