Fanning the coals
Clearing the stem.
18+Reference resource. Nicotine is addictive. Tobacco use harms your health.
Clearing the stem.
Electric heating removes the charcoal from a hookah, not the smoke. These are two different things, and the entire subject of the electronic hookah fits into the distance between them.
Several different devices share the name. A heater "puck" sits on top of the foil in place of charcoal and heats an ordinary bowl packed with ordinary tobacco. An electric head is a bowl with a heating element built into it; the tobacco inside is also ordinary. And devices that vaporise a flavoured liquid and sit on the base in place of a bowl do not heat tobacco at all: that is a vape connected to a hookah. A detailed breakdown of the categories is in a separate article, "Types of Electronic Hookahs: Which Ones Are Hookahs and Which Are Vapes Under a Hookah Name".
This article is about the first two designs — a hookah in which the heat source has been swapped and everything else left in place: the same bowl, the same foil, the same tobacco, the same base and the same hose.
The manufacturers' logic rests on a real finding. Monzer and colleagues (2008) traced hookah smoke back to its sources and reported that "approximately 90% of the CO and 75–92% of the 4- and 5-membered ring PAH compounds originated in the charcoal", and that "greater than 95% of the benzo(a)pyrene in the smoke was attributable to the charcoal".
The conclusion follows directly: remove the charcoal and those specific compounds should fall. And they do. The question is what happens to everything else.
The only located study with direct measurements of a commercial hookah heater comes from the Center for Tobacco Products at the US Food and Drug Administration (Edwards et al., Tobacco Prevention and Cessation, 2020). A commercial 40 mm electric heater (Ren, Headstream, China) was tested against quick-light charcoal of the same diameter.
The electrical parameters are reported cautiously, with a caveat from the authors themselves: "The commercial waterpipe electric heater was powered by the manufacturer's power supply (stated as 13 V DC and 3.5 A current). However, based on internal measurements, the voltage measured 14 V DC with 2.7 Ω resistance." Wattage figures for consumer heaters are not published in peer-reviewed sources, and substituting a guess for a measurement is not worth doing.
The session ran 57 minutes with 171 puffs of 0.53 L each. The results:
| Measure | Charcoal | Commercial electric heater |
|---|---|---|
| Average source temperature | 405.0–450.6 °C | 386.3 °C |
| Maximum source temperature | 526.4 °C | 411.9 °C |
| Average tobacco temperature | 118.5 °C | 103.9 °C |
| Tobacco consumed per session | 31.35 % | 20.56 % |
The warm-up behaviour is separately interesting: "The waterpipe charcoal temperature increased slowly and reached its maximum temperature after approximately 15 min", whereas the electric heater "quickly reached maximum temperature within 2 minutes of heating time; after reaching maximum temperature, the temperature plateaued and then oscillated between 350°C and 450°C."
The authors' verdict on the commercial device is blunt: "The commercial electric heater did not reach consumption levels seen in the charcoal heating system."
This result should not be generalised to every electric design. A different study (Brinkman et al., Tobacco Control, 2020) measured an electric head and found the opposite pattern: "Temperature of the electric head ranged from 300°C to 380°C, depending on the power supply setting", and "maximum tobacco temperature obtained when using electric heating (~300°C) was almost twice that obtained when using charcoal heating (~150°C)". "Electric heats more gently" is a property of a particular device, not of electricity.
Here the data agree, both in the laboratory and in people.
A study from the American University of Beirut group (El Hourani et al., Chemical Research in Toxicology, 2019) compared three commercial electrical heating elements against charcoal on a smoking machine: "EHEs involved an 80% reduction in total PAH and a 90% reduction in CO emissions."
Brinkman and colleagues (2020) point the same way: mainstream carbon monoxide and pyrene were 8.2 and 2.1 times lower respectively (p<0.001).
The review by Shihadeh and colleagues in Tobacco Control (2015) gives a striking figure for benzo[a]pyrene: it "dropped from 170 to 9 ng/session when electrical heating was substituted for charcoal."
The newest and most lifelike study is Kassem and colleagues (Toxicology Reports, 2026): 50 smokers and 25 controls, two sessions in their own homes a week apart, a ceramic electric head against a single quick-light charcoal. The result: "Pre-to-post differences in levels of ambient carbon monoxide (CO), exhaled CO, and heart rate were significantly lower when WPT was electrically heated." In urine, only one compound fell significantly: electric heating "did not significantly reduce exposure to the addictive drug nicotine or the toxicant pyrene, but did significantly reduce exposure to the carcinogenic compound benzene."
The same El Hourani paper carries a second half to its conclusion that advertising rarely quotes: the heating elements "also resulted in a several-fold increase in the potent respiratory toxicant acrolein". The authors' summary: "These mixed findings underscore the complexity of toxicant reduction by product manipulation and suggest that marketing EHEs as reduced harm products may be misleading."
Brinkman and colleagues (2020) add that under electric heating there were increases in "the fraction of tobacco consumed (2.4 times more, p<0.0001), mainstream nicotine (1.4 times higher, p=0.002) and semivolatile furan yields (1.4 times higher, p<0.03)" — with a detailed range of 1.3 to 4.6 times for furans. Total particulate matter did not change at all: "There was no difference in mainstream TPM between electric and charcoal heating."
One more detail from the same work concerns a familiar habit: ice in the base raised furan yields 1.3 to 1.7 times under electric heating.
For scale, the authors compare the furans with cigarettes: 2-furaldehyde and 5-(hydroxymethyl)-2-furaldehyde in hookah smoke were "up to 230 and 3900 times higher, respectively, than those reported for cigarettes."
The 2026 home study also found physical evidence of overheating: "we found visual evidence of charred WPT from electric sessions, suggesting excessively heated WPT." In their conclusions the authors frame this as a regulatory requirement: "Inadequate control of electric heaters can lead to WPT overheating and degradation."
This is the pivotal question, because it can cancel out any reduction in emissions.
Brinkman and colleagues (Tobacco Control, 2020, a second paper): 34 experienced smokers, crossover design, ad libitum smoking in a chamber. The result: "Smokers' mean plasma nicotine, heart rate, and exhaled benzene and CO boost were all significantly lower for electric compared with control. However, smokers puffed more intensely and took significantly more and larger volume puffs for a larger total puffing volume (2.0 times larger, p<0.0001) when smoking electric." In detail: 30 % more puffs, puffs 16 % longer and 38 % larger in volume, and almost twice the total volume.
The authors state the consequence outright: "inhaling twice as much smoke when using the electric heat source would result in higher exposures to toxicants associated with the burning tobacco, such as furans and carbonyls."
An honest caveat: the picture is not uniform. In the 2026 home study there was no difference in urinary nicotine biomarkers between sessions, so compensation did not show up there. Two designs gave two answers, and it is too early to call the question settled.
There is no objective measurement of taste, only participant ratings — and they consistently do not favour electricity. In the laboratory study, smokers "rated electric smoking experience less satisfying and less pleasant". The 2026 home study is more specific: "Participants reported smoking electric-heated WPT was less appealing; harsher and hurt their throat; but healthier and cleaner."
That last part — "healthier and cleaner" — is an opinion, not a measurement, and it sits at odds with the measurements taken in the very same study.
The gap between data and perception has been measured directly. A survey of 199 people aged 18–32 who had smoked hookah in the past 30 days (Lipkus, Cobb, Eissenberg, Health Education & Behavior, 2020) found that "participants viewed charcoal as more harmful than electrical heaters. Participants knew more about chemicals released from charcoal than electrical heaters," while overall awareness was described as: "knowledge about harms for each heating source is poor."
The expectation that the base will "filter out" the difference does not hold. In the background section of Rezk-Hanna and colleagues (Chest, 2022) it is put plainly: the notion that smoke is filtered by passing through water "is incorrect … because bubbles of smoke pass quickly through the water". Changing the heat source affects the composition of the smoke; the water does not.
Taken together, the data show electric heating solving exactly one problem: it removes the products of burning charcoal. The 2026 study puts this most concretely in terms of indoor air, noting that ambient carbon monoxide levels indoors were significantly higher than outdoors and advising those who use charcoal not to smoke indoors. Meanwhile the systematic review written for regulators (Kienhuis, Talhout, Tobacco Induced Diseases, 2020) places electrical heating in the "toxicity" column alongside charcoal and states: "Both heating sources increase toxicant emissions in different ways."
What electric heating does not do: it does not remove nicotine, does not remove the glycerol aerosol, does not remove the products of thermal degradation of tobacco, and for some compounds it increases yields. No long-term health research on electric heating specifically has been published; every available dataset describes a single session.
Russian Federal Law No. 15-FZ of 23 February 2013 defines a hookah in Article 2 as a device for generating smoke from the smouldering or heating of tobacco, or of products containing no tobacco leaf. The phrase "or heating" covers electric designs, and the mention of products without tobacco leaf covers tobacco-free fillers. Article 2 also classifies tobacco-free heating mixtures as nicotine-containing products, and clause 4.2 of the same article describes them explicitly as a type of nicotine-containing or nicotine-free article.
The practical consequences are the same as for a conventional hookah: hookah use is prohibited in food-service premises (Article 12), advertising and the promotion of sale and consumption are prohibited (Article 16), and sale to and consumption by minors are prohibited (Article 20). Changing the heat source does not move the product outside the law.
The limits of knowledge deserve to be stated as plainly as the figures:
Is an electronic hookah a hookah without charcoal?
Only for some designs. A heater puck and an electric head heat ordinary tobacco with electricity, and everything else stays the same. Devices that vaporise liquid do not heat tobacco at all.
What actually falls without charcoal?
Carbon monoxide and polycyclic aromatic hydrocarbons — by 90 % and 80 % respectively in machine testing; benzo[a]pyrene fell from 170 to 9 ng per session in the 2015 review. In the 2026 home study, room carbon monoxide, exhaled carbon monoxide, heart rate and urinary benzene all fell significantly.
What rises instead?
Acrolein, several-fold; furans and mainstream nicotine by roughly 1.4 times; tobacco consumption by 2.4 times. Total particulate matter is unchanged. Home sessions produced visibly charred tobacco from overheating.
How much hotter is an electric heater?
The commercial unit tested by the FDA held 386 °C on average against 405–450 °C for charcoal, and reached working temperature in 2 minutes instead of 15. But in another study an electric head drove tobacco to about 300 °C against roughly 150 °C under charcoal — it depends on the design.
Do people smoke more of it?
In the laboratory study, yes: 30 % more puffs and twice the total smoke volume, with lower plasma nicotine. The home study found no such difference in biomarkers. The question is open.
So is it the less harmful option?
The people taking the measurements do not think so. The group that ran the comparison wrote that marketing electrical heating elements as reduced-harm products "may be misleading". There is no long-term data at all.
Related material on the site: on charcoal itself — "Types of Hookah Charcoal" and "Coconut Charcoal"; on toxicants and risk — "Health Effects of Hookah" and "How to Minimise the Risks"; on tobacco-free fillers — "Hookah Without Tobacco: Tea, Fruit and Mineral Blends"; on misconceptions — "Top 10 Hookah Myths"; on device categories — "Types of Electronic Hookahs".