Update: DOE Appliance Minimum Efficiency Standards

From MasterResource

“It started with gas cooking.  It will end with getting gas out of homes and business entirely, If they can. Basically, what we’re witnessing is the energy equivalent of ethnic cleansing. I’ve been saying this for years but now it should be obvious.”

The U.S. Department of Energy (DOE) under the Biden Administration has significantly accelerated the pace of minimum appliance efficiency rulemaking. With this acceleration, there has been a marked decrease in DOE’s analytical quality and transparency. The purpose of this update is to summarize:

  1. Energy Conservation Standards for Consumer Conventional Cooking Products
  2. Energy Conservation Standards for Consumer Products; Boilers
  3. Energy Conservation Standards for Consumer Water Heaters

Note: In DOE-speak, the term ‘consumer’ means non commercial/industrial, or just residential.

Part 1: Consumer Cooking Products

On April 27, 2023, MasterResource published DOE vs. Gas Cooking: A Review of Critical Comments. On August 2, 2023, DOE reopened the docket with a “Notification of data availability and request for comment (NODA) with comments due September 1. More than 100 comments were filed. 

The NODA substantially changed the Supplemental notice of proposed rulemaking and announcement of public meeting & request for comments (SNOPR) that my April 27 article summarized . DOE probably should have (or at least could have) issued its NODA as a SNOPR and allowed more time to develop comments than the 30 days the NOPR allowed. A request for extension of the comment period was timely filed but denied by DOE on August 30. This request contained the following excerpt that summarized the effects of ignoring such requests:

 “Ad hoc departures are not proper, for such activities disrupt orderly processes and harm predictability, which are the hallmarks of lawful administrative action.”

Footnote 5 of that statement further stated:

See, e.g., Reuters Ltd. v. FCC, 781 F.2d 946, 950-51 (D.C. Cir. 1986) (“[I]t is elementary that an agency must adhere to its own rules and regulations. Ad hoc departures from those rules, even to achieve laudable aims, cannot be sanctioned . . . for therein lie the seeds of destruction of the orderliness and predictability which are the hallmarks of lawful administrative action. Simply stated, rules are rules, and fidelity to the rules which have been properly promulgated, consistent with applicable statutory requirements, is required of those to whom Congress has entrusted the regulatory missions of modern life.”); Brock v. Cathedral Bluffs Shale Oil Co., 796 F.2d 533, 536 (D.C. Cir. 1986) (“It is axiomatic that an agency must adhere to its own regulations.”); Mine Reclamation Corp. v. FERC, 30 F.3d 1519, 1524 (D.C. Cir. 1994) (on its way to decision an agency must follow its own regulations). [emphasis added]

Some commenters viewed the NODA and relatively short (30-day) comment period as a violation to  the Administrative Procedures Act codified by 5 U.S.C. § 551(5)–(7) and the DOE’s “process rule” codified by 10 CFR 430 Appendix A to Subpart C. One such commenter making this case was the Institute for Energy Research (IER).

Other comments with detailed content in opposition of DOE’s proposal for consumer cooking products included those of:

  1. Association of Home Appliance Manufacturers (AHAM)
  2. National Association of Home Builders (NAHB)
  3. Gas Analytics & Advocacy Services, LLC (GAAS)
  4. Joint Gas industry

The third reference in the above list are my comments. They addressed what has changed since DOE determined (in 2019) that additional efficiency mandates for gas cooking appliances is not justified. In short, Biden happened. With that change, DOE resorted to a longstanding bias that any amount of net positive cash flow (greater than zero) on average was sufficient economic justification. I cited AHAM’s press release “Gas Cooking Appliances Remain at Risk Despite New DOE Data” for this NODA that succinctly justified what that amount now is:

“The revised data reduces consumer savings to just 9 cents per month.

I contend no one would freely elect to invest in anything with that kind of return-on-investment (ROI). Additionally, 9 cents per month is far less than the uncertainty range within DOE’s economic calculations.  Besides, DOE’s economic calculations typically low-ball increased maintenance costs and over-inflate fuel costs (among many other biased input assumptions).

What else has changed is that DOE cost-effectiveness now includes highly controversial benefits from reduced climate change allowed by grossly inflated social cost of carbon (SCC) avoidance and health benefits from improved indoor air quality (IAQ). As shown by the following table, the economic add-ons of “climate” (SCC) and “health” (improved IAQ) benefits greatly exceed the reduced energy consumption values (shown as “consumer operating cost savings”) that the enabling legislation envisioned should be the leading criteria under the Energy Conservation and Policy Act (EPCA):

Further summarizing Table 1.2.2, for a 3% discount rate and the shown $259.2 million of DOE estimated net benefits, well over half ($160.8 million) are attributable to factors beyond the original intent of the 1975 Energy Policy and Conservation Act (EPCA) to provide “significant” consumer operating cost savings. [1] A similar ratio exists for a 7% discount rate. Of course, “significant” is defined by DOE.  And, at least for the present, “significant” appears to mean any amount of net positive cash flow greater than zero.

My comments also cited a recent paper that debunked assumed IAQ benefits.  The abstract of that paper follows:

  • Reliability of Meta-Analysis Research Claims for Gas Stove Cooking−Childhood Respiratory Health Associations
    Abstract:
    Odds ratios or p-values from individual observational studies can be combined to examine a common cause−effect research question in meta-analysis. However, reliability of individual studies used in meta-analysis should not be taken for granted as claimed cause−effect associations may not reproduce. An evaluation was undertaken on meta-analysis of base papers examining gas stove cooking (including nitrogen dioxide, NO2) and childhood asthma and wheeze associations. Numbers of hypotheses tested in 14 of 27 base papers (52%) used in meta-analysis of asthma and wheeze were counted. Test statistics used in the meta-analysis (40 odds ratios with 95% confidence limits) were converted to p-values and presented in p-value plots. The median (interquartile range) of possible numbers of hypotheses tested in the 14 base papers was 15,360 (6,336−49,152). None of the 14 base papers made mention of correcting for multiple testing, nor was any explanation offered if no multiple testing procedure was used. Given large numbers of hypotheses available, statistics drawn from base papers and used for meta-analysis are likely biased. Even so, p-value plots for gas stove−current asthma and gas stove−current wheeze associations show randomness consistent with unproven gas stove harms. The meta-analysis fails to provide reliable evidence for public health policy making on gas stove harms to children in North America. NO2 is not established as a biologically plausible explanation of a causal link with childhood asthma. Biases – multiple testing and p-hacking – cannot be ruled out as explanation for a gas stove−current asthma association claim. Selective reporting is another bias in published literature of gas stove–childhood respiratory health studies.

Part 2: Consumer Boilers

On September 12, 2023, DOE held a public webinar to go over its proposal for increased minimum efficiencies for residential boilers. A 59-page slide deck for that meeting is here. (If you have never read one of these slide decks, I urge you to do so. It’s a relatively painless way of getting familiar with the ‘administrative state’ going about its business of picking winners and losers.)

The meeting went from 10 am to 3 pm (with a 1-hour lunch break). For the very first time (that I can recall), there were many participants representing manufacturing interests that would be adversely impacted by DOE’s proposal, and they were quite vocal about it (in a professional way of course). 

Hopefully soon, DOE will publish a transcript of that meeting. That transcript will then become part of the record for this docket and can thus be used in litigation that appears likely at this point. And that is why the public meetings offer a relatively easy way to get “into the record.”

And why would manufacturers want to litigate? DOE would put some of them out of business. The reason is DOE would not just ban non-condensing hot water boilers, it would mandate the top end of condensing boiler efficiencies of 95% (“max-tech” in DOE-speak) as shown on page 56.

Part 3: Consumer Water Heaters

On September 13, 2023, DOE held a public webinar to go over its proposal for increased minimum efficiencies for residential water heaters that lasted 3 hours. A 74-page slide deck for that meeting is here.  There were nearly twice as many participants on line compared to the number of webinar participants the day before for consumer boilers; and many of the participants represented water heater manufacturers, some of which would be devastated if DOE’s proposed mandates were finalized. 

One manufacturer that stood out in this regard was Rinnai America. Rinnai is the sole manufacturer of non-condensing tankless water heaters in the U.S. Rinnai’s President stated, as I recall, that DOE’s proposed ban of non-condensing water heaters would shut down Rinnai’s new factory that cost $70 million. That, of course, would devastate the many involved.

Like the consumer cooking NODA, DOE consumer water heating NOPR is again calling for a very short comment period (ending on September 26, 2023). A request for extending the comment period has been submitted, but DOE has yet to acknowledge it.

Conclusions

DOE has been (ostensibly) ‘improving’ appliance efficiency for nearly a half-century.  The low hanging fruit is long gone. In many cases, DOE is doing more harm than good and using unfair tactics to maintain control and reward its minions. What we have now is relentless self-serving “mission creep” of the administrative state and its “useful idiots” that forces consumers to fund the erosion of viable energy alternatives. The passage of the Inflation Reduction Act is greatly aiding and abetting this forced transformation away from free market forces.

“Industry” can elect to litigate whatever final rule DOE chooses to further regulate consumer appliance minimum efficiencies. That’s what we did for commercial boilers and we “won.” But doing so takes years and very deep pockets.  Furthermore, even if “industry” prevails and gets a bad rule vacated, a new review is required every 6 years under EPCA.  Another concern is when the clock restarts once a final rule is vacated.  I don’t know.  It could be argued that 6 years has passed already and DOE could possibly re-analyze the need for new commercial boiler standards immediately.

DOE doesn’t care what it costs to litigate. After all, DOE has the backing of the Department of Justice for such matters. In my opinion, DOE has strayed too far from any redeeming virtue that may have originally existed from the 1975 passage of EPCA. It’s past time for Congress clean up the mess it created by enacting EPCA and the numerous ambiguous loopholes that gives undeserved deference to the administrative state to interpret. A valid question is whether EPCA (and DOE for that matter) should be salvaged or scrapped.

Next Steps

We plan on making EPCA (reform or abolishment) a top priority. Defunding the IRA goes hand-in-hand with overhauling EPCA. DOE reform also requires DOE to obey its so-called “process rule.” I recommend that Congress order DOE to do so in conjunction with public workshops that fully include “we, the people” rather than preclude them (as did DOE’s misguided attempt at “peer review” with the National Academies. [For a full review of DOE’s process , please see my December 9, 2020, article, Energy Efficiency Policy Under Trump (Part II: EERE’s Process Rule & Overhaul). Also see the attachments to my comments for the gas cooking NOPR.]

Biden’s DOE wants to eliminate alternatives to electricity. This fixation became apparent to all with their planned elimination of gas cooking and ran head-on with consumers that hold gas cooking near-and-dear. Consumer preferences for gas cooking was and is a major obstacle to control via societal electrification overall. 

This exact sentiment was a subject of discussion at the Electric Power Research Institute’s (EPRI) Electrification 2018 International Conference & Exposition that I attended. If you follow the link, note how EPRI coopted the National Association of Regulatory Utility Commissioners (NARUC) to endorse it. But I’ll have to leave this situation for another time (stay tuned).

As this article hopefully conveys, it started with gas cooking. It will end with getting gas out of homes and business entirely, If they can. Basically, what we’re witnessing is the energy equivalent of ethnic cleansing under the guise of fighting the “existential threat” of anthropogenic global warming. I’ve been saying this for years but now it should be obvious.

——————————

Mark Krebs, a mechanical engineer and energy policy consultant, has been involved with energy efficiency design and program evaluation for over thirty years. Mark has served as an expert witness in dozens of State energy efficiency proceedings, has been an advisor to DOE and has submitted scores of Federal energy-efficiency filings. His many MasterResource posts on natural gas vs. electricity and “Deep Decarbonization” federal policy can be found here.

Mark’s first article was in Public Utilities Fortnightly, titled “It’s a War Out There: A Gas Man Questions Electric Efficiency” (December 1996). Recently retired from Spire Inc., Krebs has formed an energy policy consultancy (Gas Analytic & Advocacy Services) with other veteran energy analysts.


[1] Note: EPCA was and is an energy and economic statute, NOT an environmental nor public health statute despite DOE’s decades of trying to make it so.

——————————

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Ron Long
September 20, 2023 10:29 am

Thanks to Mark for another Reality Check. However, reality is not important to the proponents of the Climate Change Scam, and the Liberal (WOKE) TV programs go on and on about the doom and gloom and death knell obvious to true believers. I have to constantly remind myself that it is OK to shout at the TV as long as you don’t expect an answer: if you wait for an answer they will cart you off. Just saying.

September 20, 2023 10:33 am

Since the DOE likes to promote shutdowns, it should not be opposed to shutting down the DOE. Since the DOE is not really involved in promoting additional energy, I think 50 years of regulating everyone’s life is long enough.

September 20, 2023 11:08 am

This is one of many fine examples of a bureaucracy in the Biden regime that blatantly ignores the recent Supreme Court major questions rulings. They are going to ignore the courts and ignore the laws and do what they want. Up to us to stop them.

No doubt they hope to get lucky. Maybe the regs will go into effect and only be stopped years later. Maybe the philosophy of the court will change before a challenge reaches SCOTUS and these regulations and these regulations will be allowed to stand.

We need to elect another POTUS who is not part of the establishment. Not necessarily Trump, he lacks the ability to get along with Congress, but I’ll take him if he’s the nominee.

Patrick Childs
Reply to  More Soylent Green!
September 20, 2023 8:12 pm

One wonders what idiots in congress gave the DOE authority over consumer products. This agency was once charged with building nuclear plants and interstate pipelines. it is now, apparently, in charge of destroying manufacturing in America, the energy industry and creating an industrial police state.

September 20, 2023 11:16 am

At this year’s Spring furnace/AC tuneup the technician stated that my AC units were getting old and I would save money by replacing them with newer models. So I invited them out to do a detailed inspection and give me a bid. Turns out to replace both AC condensers and evaporators would cost about $20K; when I had them installed along with two new furnaces about 20 years ago the total job cost me roughly $10K (same company).

When I noted that no possible power savings would justify spending $20K the response was that in a few years new AC units will be even more expensive so replacing them now would “save” money.

The Department of Energy was originally established under President Carter to insure US “Energy Independence”. Now DOE seem intent on imposing energy poverty and should be abolished and most of their regulations rescinded.

Robertvd
Reply to  Alan Watt, Climate Denialist Level 7
September 20, 2023 12:31 pm

Remember that thanks to your government spending/printing like there is no tomorrow your $ buys a LOT less than 20 years a go (killing your savings). And it will get even worse. So yes in $ it could be very expensive but everything will be very expensive in a few years especially electricity (if it is still available).

Reply to  Robertvd
September 21, 2023 2:10 pm

If you are invested using fiat currency then you should at least consider putting at least 20% of your current savings into precious metals such as gold.
Especially in the current regime…

Reply to  Yirgach
September 21, 2023 2:19 pm

BTW, I just had a 12Kw whole house generator installed. It cost about $10K.
That amount was paid for by 5 oz of US gold coins I bought about 20 years ago for about $2K.

Reply to  Alan Watt, Climate Denialist Level 7
September 20, 2023 1:38 pm

> would cost about $20K; when I had them installed along with two new furnaces about 20 years ago the total job cost me roughly $10K (same company).

Sounds about right: (25% of median household income in both cases)
Median household income stood at $43,318 in 2003.
Initial estimate of median household income in May 2023 is $81,454,

OK, not quite so good when comparing CPI’s, but not out of the ballpark:
US CPI in 2003 184.0, Augsut 2023 CPI : 307

strativarius
September 20, 2023 11:50 am

“”ethnic cleansing””

Surely it’s bigger than that? It’s Hom sap cleansing.

What greens call Earth’s facial herpes

Rick C
September 20, 2023 11:57 am

DOE and EPA now start with the mindset that appliance manufacturers are evil capitalists who are only interested in profits and make their products as cheaply as possible – thus they pay no attention to efficiency. This is, of course, complete non-sense. These regulators have no idea how diligently manufacturers work to provide the best value to their customers possible. That is how one must operate to succeed in a competitive free-market. But manufacturers are well aware of law of diminishing returns and the need for high reliability and long term durability necessary to stay in business.

In the 1970’s a company named Arkla introduced a revolutionary condensing gas furnace that improved heating efficiency into the 90% range vs ~70% for traditional gas furnaces. But the design included a stainless steel heat exchanger necessary to prevent corrosion due to water condensing. It turned out that within a few years these heat exchangers failed – cracking and leaking due to differential expansion under repeated on/off cycling. Years worth of production had to be recalled and scraped or repaired which effectively bankrupted the manufacturer.

Regulators like DOE/EPA have no idea what impact their tightened regulations are going to have on manufacturers or consumers. In many cases new, seemingly reasonable, regulations have devastated entire industries often leaving only a few large companies able to comply and wiping out virtually all smaller competitors. Perhaps unsurprisingly, the big companies tend to support the regulation changes knowing that they’ll ultimately benefit – this is commonly referred to as “crony capitalism”. The end result is fewer consumer choices of substantially more expensive products. It is not a mere coincidence that this situation is very similar to what tends to occur in socialist/communist economies.

Reply to  Rick C
September 20, 2023 12:33 pm

This an example of thebtypical government BS approach of hitting even issue with a sledgehammer rather than really learning about an issue. Often (maybe always) a result of an agenda. The crap about condensing vs non condensing thankless water heaters is such an example. They say the non condensing units are so much less efficient because of all the wasted heat exhaust. I’ve had 2 Rinnai tankless heaters for 17 years, and their efficiency is remarkable. The exhaust vent stacks are PVC. If they were so inefficient, they sure as hell couldn’t use PVC for exhaust. Bottom line is that the non condensing units can only save a trivial amount of energy, too little to justify the cost. More government boondoggle.

MarkW
Reply to  slowroll
September 20, 2023 1:57 pm

non condensing thankless water heaters 

I’ve never been thanked by a water heater.

Mark
Reply to  MarkW
September 20, 2023 2:58 pm

slowroll has never been ‘tanked” by a water heater.

Tank you, tank you. I’ll be here all week.

Seriously, though, Rinnai has some incredible stuff. They put out 200,000 BTU; enough hot water for DHW and space heating (with the addition of a “radiator” in you air handler). So they’re not just a water heater.

MarkW
Reply to  slowroll
September 20, 2023 2:03 pm

You are confusing two concepts, tankless and condensing.

Tankless are usually more efficient because you don’t have 40 gallons of water sitting their losing heat 24/7.
Condensing heaters are more efficient because they get more energy out of their exhaust.

A tankless water heater can be condensing, or it can be non-condensing.
A condensing water heater can be tankless or it can have a tank.

Condensing water heaters, and heaters in general use can use PVC because the exhaust temperatures are lower.
Condensing units have to use PVC because the water that is being condensed from the exhaust is acidic enough to eat through a metal exhaust stack in short order.

MarkW
Reply to  Rick C
September 20, 2023 1:56 pm

In the real world, you have to balance the cost of quality vs the benefits of quality.

In the regulator’s world, there is no cost. No matter how much the new regulations jack up the price of a product, the regulators won’t suffer.

September 20, 2023 1:29 pm

What this means in practical terms is that no major appliance should ever be scrapped and replaced with a new one. Leaking water heaters should be disassembled and repaired. Boilers, condensing or non-condensing should always be repaired. Only the termination of gas service should a reason for scrapping a gas fixture. Businesses will be quick to supply parts, as they generally are now, if demand for them continues regardless of their replacement by those of dubious technological superiority.

I just removed a condensing gas boiler from a home because the manufacturer no longer makes boilers and parts had become hard to find. I replaced it with a newer boiler of a similar design. The old boiler is going to go into storage so it will be available for use in the future. It’s in no way obsolescent. The problem is that during the heating season no one can afford to go without heat for more than a few hours.

MarkW
September 20, 2023 1:52 pm

They are willing to spend hundreds of dollars in other people’s money, in order to save a few cents worth of energy.

They are determined to impoverish everyone who isn’t already a member of the elite.

Lee Riffee
September 20, 2023 2:02 pm

It’s funny that the left is usually associated (quite wrongly, I might add) with looking out for the poor and low income people. They like to accuse the right of only caring about money and profits and not the average person.
But Bidet’s DOE is anything but caring towards those of limited income. We’ve all seen people who live in run down homes and drive ancient vehicles because they can’t afford better. Or living in slum apartments and not owning a car at all….

But what will happen when home appliances are so much more expensive (and don’t work very well)? If your clothes dryer breaks and you can’t afford a new one, you can hang up your clothes to dry. But what happens when a furnace or boiler gets too old and can no longer be repaired? And if the homeowner can’t afford to replace it? In that case, what would be an inconvenience with a clothes dryer or dishwasher can become life threatening.

This sort of thing already happens these days. People who are desperate to keep warm will run faulty heating appliances and then die in a fire or of CO poisoning. And for those living in the slum apartments, maybe the landlord will replace such units. But they will also raise the rent big time, and more and more people will be living on the street. This is how things are in Cubafornia, as many people already cannot afford any place (other than the street) to live.

Speaking of Cuba, I swear that this administration, if not stopped (i.e. ideally replaced or at least shut down in the courts) will turn this entire country into something very much like that island nation. Not only will people manage to keep ancient cars and trucks on the roads, they will also keep ancient appliances going long past their typical lifespan. But while this will bring a little relief to the consumer, it will devastate manufacturers.

Reply to  Lee Riffee
September 20, 2023 2:12 pm

I’ve always been curious about the remarkable number of small, co-op shops that repair and rebuild bicycles, often donated to them, which they then sell or give away. Why hasn’t this happened with household appliances like washers, driers, ranges, refrigerators and so on? The renewable/recyclicable tribe should go out of their way to enable this sort of enterprise but there’s no evidence of it around here.

Dave Andrews
Reply to  general custer
September 21, 2023 6:50 am

30 years ago when I lived in East Finchley (North London) there was a shop at the end of the road that did precisely that- repaired old appliances and resold them. Took a couple of things to them. Doubt it is still there today.

Mark
Reply to  Lee Riffee
September 20, 2023 3:01 pm

You should submit that as a comment (due on the 26th).

Reply to  Lee Riffee
September 21, 2023 2:38 pm

This is what happens when a “need” becomes a “right”.
When people start screaming loud enough the current regime will fix the poblem by simply printing more money. Of course, if you have lived scrupulously and saved in fiat $, your savings will be destroyed by inflation and increased taxes used to stop the screaming…

Bob
September 20, 2023 3:04 pm

The government needs to get out of our business, they do not know better than us.

September 20, 2023 3:39 pm

Bureaucrats have a habit of wanting to make this so efficient…

… that THEY DON’T WORK AT ALL.

MiltonG
September 20, 2023 6:45 pm

Where is the justification to radically change society? The SCOTUS already said this would not recive judicial support.

Patrick Childs
September 20, 2023 8:08 pm

Strikingly, the most serious omission (as compared to the totally fabricated economics benefits series which is pure nonsense designed to get pass an Obama judge), is the very real cost of the shortened lives of these “energy efficient” products. Not only do they under-produce (such a wash of clothing now taking 45 minutes as opposed to 20 previously, and yet the clothes often smell and look in worst shape as when washing commenced), but the average life of a washer, upright freezer and refrigerator is now 6 years as opposed to 20+ a mere 15 years ago. The average life of an electric range is now 10 years as opposed to 50 a mere 15 years ago. Like windmills, solar plants and EVs, somehow the capital replacement cost is completely eliminated from the energy equation. And yet longevity is, and once was, the primary parameter of the economic utility of a consumer tool product. If included, the fabrications of the DOEs economic analysis would enter the Wizard of Oz level of regulation.

MarkW
Reply to  Patrick Childs
September 21, 2023 11:09 am

To the regulators, appliances that last a long time are a problem.
After all, in their “minds”, they have made newer appliances so much more efficient. People need to be forced to buy the newer models to replace the older, less efficient ones.
The best way to do this is to make sure that new appliances wear out quickly.

September 21, 2023 8:37 pm

Six years ago I made the mistake of buying a “HE” (high efficiency) washing machine. Almost all were HE and I wrongly assumed it was probably innocuous.

The reveal? It turned out they were taking out the internal electric heating elements that earlier washing machines had used to get hot water up to temperature before hot water from the house water heater had reached the machine.

My previous econo-model Maytag washing machine had one of these heating units built in, and I think they were quite standard. That is why when you ran a warm or hot wash, the water could come in slow at first, and only speed up when hot water reached the tap.

I tested mine with my hand to make sure. Does the water enter the wash hot from the start? Yet it did, well before hot water had a chance to make its way over from the sink.

I would always run the hot water in the laundry sink first to get the hot water near to the washing machine, so the electric heating unit didn’t have to do much, but it was still on for a minute or two.

Without any built-in heater, the new HEs just put cold water into the “hot” wash until the hot water comes, yielding at best an on-average warm wash.

With my laundry sink nearby, that is about what I am getting. “Hot” washes for sheets and towels are only warm. Without a laundry sink I’d always be getting cold washes, regardless of setting.

Hot washing and drying is crucial for sanitary purposes. That is how bedbugs were kept out. As long as they are hot washed and hot dried when before they’ve gotten enough blood meals to reproduce (about 5), they can’t get established.

We are already down to relying on dryers for that, but I doubt the next generation of driers will be up to snuff either. Like the washers, they probably won’t do true hot, and bed bugs will come roaring back.