In 2018, it was the Water Products Purchase. In 2019, it was the Laundry Filtration Installation. In 2020 it was the Solar System Setup (and the clothesline!).
 It seems like every year, I make another biggish investment in some 
planet-friendly home improvement, but in 2021, there was not an environment
 blog post to be found! What happened? Did I give up? Had I succumbed to
 the allure of conspicuous consumption? Was I just too busy riding high 
on a lavish lifestyle of gas-guzzling flights around the world? (Hint: 
it was still COVID. I was most definitely not).
Of
 course I hadn't quit my commitment to a life of extreme green—I just 
got lazy about blogging! But here I am, only 8 months after the fact, 
finally getting around to telling you about my latest 
eco-endeavor—switching to a tankless water heater.
This
 story starts all the way back in 2016, when I first bought my house. My
 memories of this period are a little hazy because I've tried to block 
them out. It was a stressful 7 months of nonstop fixing
 of things that I hadn't known were broken! But among the most egregious
 of those things was the state of the water heater. Shortly after 
closing, I do recall having to bring in the gas company for some 
reason—maybe because my gas dryer wasn't running, or maybe to get the 
gas turned on in the first place. In any case, when the gas man left, he
 left in his wake two big red tags wired to my furnace and water heater,
 reading something along the lines of "HAZARD: DO NOT USE! TO BE REMOVED
 ONLY BY A CERTIFIED PLUMBER" and the gas lines leading to them firmly 
shut off. I, um, removed the tags.
Well,
 for at least a few days, I left the tags on and focused on regretting my
 life decisions. Then I had another technician come to the house for 
some other reason, and he blithely removed the tag on the furnace 
without a second's thought. He was not a certified plumber. So with that
 good precedent, I removed the tag from the water heater and lived with 
it in its life-threatening condition for the next 5 years. I am only 
telling you this now because no one died.
In
 case you're curious just what made this appliance so dangerous, it was
 this: The top of it was pitted with holes from years of rusting. The 
flue pipe, which at one point had been affixed to the top of the tank, 
now just balanced on three spindly and unattached legs, one of which had slipped into a
 rust hole and caused the whole pipe to teeter out of position.  I was informed that, when out
 of position, it could allow combustion fumes like 
carbon monoxide to escape out into my living areas. The solution, I 
decided, was to make sure it stayed in position. I placed it 
back in its precarious home and precariously positioned other objects around 
it to help it stay upright. I also kept my carbon monoxide detector 
supplied with fresh batteries at all times!
I
 hoped we could limp along like this until the heater crapped out 
entirely, at which point my home warranty should cover a replacement. 
But after 5 years of limping, waiting with one ear cocked for the 
wailing of a carbon monoxide alarm, I decided I was going to have to 
take matters into my own hands and replace the water heater with my own 
money.
Research-Time had arrived, and the more research I did, the more it became clear that tankless heaters are by far the most energy 
efficient of the water heating options out there. Among their other benefits, they take up less space than a traditional water heater, and they never run out of hot water. Since I wasn't really hurting for space in my basement and had never run out of hot water, those weren't compelling arguments to make the switch, but in my quest to 
protect the planet, it was really the only responsible choice.
Tankless
 heaters are much more expensive to install than storage heaters, but I 
felt confident that I would get a nice rebate in exchange, because the utility companies are always giving out rebates for Energy Star appliances. But alas! The electric company only gives out rebates for hybrid heat pump 
water heaters...which aren't compatible with my basement layout. The gas company gives out rebates for tankless water
 heaters, but only if you have them installed by one of their 
participating installers, all of which quoted me such high fees that I'd 
end up spending more even with the rebate. 
Eventually
 I settled on paying a cheap company full price to install a gas-powered
 tankless water heater. When it was all said and done, I was underwhelmed. 
Going
 into the project, I'd been prepared for be the biggest downside of 
going tankless: you have to run the water longer before it comes out of 
the tap hot. I didn't figure that would bother me—I can have a little 
patience, if it's for a good cause. But as I repeatedly stood idly next 
to the shower, watching the still-cold water swirl uselessly down the 
drain for what seemed like forever before I could even get in, I began to wonder: had I 
just traded lower energy usage for higher water usage?
Well,
 according to this handy graph from the water company, probably not. 
My 
new water heater was installed right about December 20, 2021. The water 
usage in the two billing periods after the installation was exactly 
equal to the usage in the same billing periods the year before the 
installation. 
On
 the other hand, according to this graph from the gas company, the 
energy savings from this new water heater, if any, have been negligible. 
My gas usage is in fact lower than the previous year's, for almost every 
billing period...but that includes all the billing periods before I even
 had the new heater installed. So while I'm apparently not wasting a ton of water with the new heater, neither am I saving any money or gas.
So,
 of all the eco-friendly home improvements I've implemented over the 
past few years, the tankless water heater might have been the least 
impactful. if I was expecting some monumental improvements in my quality
 of life or my bills, I didn't get it. The much higher up-front costs 
of this high-tech heater may never be offset by energy savings. And 
because it operates on a computerized system, I fully expect it to fail 
just out of warranty and require expensive repairs. I probably could 
have done just as well or better with a new, more efficient, 
storage-style heater. But, uh, at least I gained some extra floor space 
behind the furnace?




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