Lennox WHHP040T45MD240S Running Cost (Electric Water Heater)
Running cost for the Lennox WHHP040T45MD240S
The Lennox WHHP040T45MD240S is certified by ENERGY STAR at 915 kWh a year, cheaper than most models in its category to run among electric water heaters currently certified.
That $172 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.
How the Lennox WHHP040T45MD240S compares to other electric water heaters
Against the category average of 1,105 kWh/yr, this model uses 17.2% less, ranking 190 of 596 electric water heaters tracked here for running cost. 596 certified electric water heaters, one average, about $36/year of daylight between it and this model; the full methodology has the rest.
Neighbouring models
Right next to the Lennox WHHP040T45MD240S on that list: John Wood JWHPCO-45 1+JWXST-50LBTTP 1 ($172/yr, 915 kWh/yr) runs slightly less, while Lochinvar LHPCO-45 1+LXST-50LBTTP 1 ($172/yr, 915 kWh/yr) runs slightly more.
Within the Lennox lineup
Ranked 2 of Lennox's 4 certified electric water heaters, this sits between the WHHP050T45MD240S ($159/yr, the brand's cheapest) and the WHHP065T45MD240S ($230/yr, its priciest).
Cost over its typical lifespan
NAHB's Study of Life Expectancy of Home Components puts a typical electric water heater's service life at 11 years; run the Lennox WHHP040T45MD240S that long and it costs about $1,892 in electricity, on top of whatever it cost to buy.
Weighing a replacement
Efficient as certified electric water heaters go, $172/year is a reasonable baseline if you're comparing what else is on the market.
Worth comparing a few current certified models before deciding.
If you're keeping it
The Lennox WHHP040T45MD240S already costs $172/year to run; a repair bill on top of that is the kind of expense a protection plan exists to smooth out.
How this was checked
Two sourced numbers, nothing modeled: ENERGY STAR's certified kWh/yr for this exact model, and EIA's published state electricity rate. At rank 190 of 596 for running cost, see the electric water heater category page for the rest of the field, or the guide to how much your state matters.