Best Low-EMF Space Heaters (2025) – Safe & Efficient Picks

If you're looking for a space heater that keeps you warm without exposing you to unnecessary amounts of EMF radiation, you found the right article.

In this guide, I'll break down how space heaters emit EMF radiation, review the best low-EMF options, teach you how to measure the radiation from your space heater (or just about anything else) and share practical ways you can reduce your exposure.

Do Heaters Emit EMF Radiation?

First of all, to answer this question, yes, heaters like space heaters absolutely do emit EMF radiation.

They will emit both electric field radiation and magnetic field radiation, and the amounts will depend completely on the device.

Remember that with just about any device that emits EMF radiation, it will be exponentially higher the closer you are to it.

This is due to a law of physics called the inverse-square law; which tells us that as we double our distance from a source of EMF radiation, we quarter our exposure to it.

This is why distance from these sources is so important.

A user on an EMF forum was curious about the type of radiation coming from the devices in his home, and here is what that user found.

Panel Heater (600W) – This had a high amount of electric field radiation just about anywhere within 4 feet, but almost no magnetic field radiation. If you keep any of these heaters across the room, your EMF radiation exposure should be quite low.

Fan Heater (2000W) – With this heater, there was a much larger amount of magnetic field radiation, but still a small amount of electric field radiation. The circuitry in this device produces a measurable amount of EMF radiation – we'll talk about how to measure this down below.

Lower EMF Heating Options

I originally wrote this article in 2018, when low-EMF space heater options were pretty limited.

Now, there are more options for fairly low EMF heating such as:

Heater Type	EMF Level	Key Features	Pros	Cons
Ceramic Heaters	Low	Uses convection, no exposed coils	Safer, efficient	Still emits electric fields
Infrared Heaters	Very Low	Heats objects directly	Minimal airflow noise	Must be unplugged to eliminate EMF
Oil-Filled Radiators	Lowest	Uses circulated oil, no fan	No moving parts, quiet	Bulkier, takes longer to heat
Fan-Forced Heaters	Higher	Uses internal motors	Quickly warms rooms	Produces stronger magnetic fields

I'll also say that if you're looking for a low EMF space heater option, do not get a “smart” heater that is controllable via your phone or smart home devices.

These smart heaters will expose you to increased Radio Frequency (RF) radiation on top of the electric and magnetic fields.

Best Low EMF Space Heaters

When it comes to small space heaters for your home, you will not find any that produce no EMF radiation, it just isn't possible with the way the devices are constructed.

You can get no-EMF radiation heating pads (check out my huge guide on this here), but there isn't a good way to have a heater warm-up space, without emitting at least some EMF radiation.

So first I'm going to give my top recommendations for relatively low EMF heaters, and then I'll talk about how you can measure the radiation from these devices yourself, and finally, I'll talk about how to minimize your EMF exposure.

Here is a table covering my three top picks:

Product	Heating Technology	EMF Levels	Wattage Options	Key Features	Best For
GiveBest Portable Electric Ceramic Heater	PTC Ceramic Convection	Low	750W / 1500W	Compact, no smart features, tip-over & overheat protection	Budget-friendly, small rooms
Dreo Atom One Space Heater	PTC Ceramic with Fan	Moderate (fan motor emits some EMFs)	750W / 1500W	Quiet (37dB), 70° oscillation, digital thermostat, ECO mode	Quiet heating, offices, bedrooms
DeLonghi HMP1500 Mica Panel Heater	Mica-Thermic (Convection + Radiant Heat)	Moderate-High (higher electric fields, lower magnetic fields)	1500W	Wall-mountable, fanless, overheat & tip-over protection	Large rooms, wall-mounting

GiveBest Portable Electric Ceramic Space Heater

Check the current price on Amazon.

I've tested quite a few different space heaters over the years in my search for a low-EMF option that still actually does a good job of heating a room.

The GiveBest ceramic heater is one of the best I've found, especially considering that it's affordable and compact.

Now, I want to remind you, that no electric space heater is completely EMF-free. Any heater that runs on electricity is going to produce at least some level of electric and magnetic fields, but some are absolutely better than others.

This one is absolutely in the “better than others” category.

Here are some of the best features of the GiveBest space heater:

• Low-EMF Ceramic Heating: Uses PTC ceramic elements for efficient convection heating while still emitting fairly low electric field radiation.
• Adjustable Heating: You can choose to run the heater anywhere between 750W and 1500W. Run it at a lower setting to reduce the magnetic field radiation.
• No Smart Features: In this case, it's a good thing that this heater doesn't have any smart features. Not having WiFi or Bluetooth connectivity means it will not emit RF radiation.

Dreo Atom One Space Heater

Check the current price on Amazon.

The Dreo Atom is another good low-EMF option for a space heater, especially if you want one that still has some nice features.

While it isn't EMF-free, it also uses ceramic heating technology, which emits lower electric fields compared to coil-based heater models.

The first thing I love about this heater though, is how fast it heats up. It has a really high amount of potential heating power (1500w), and so it feels like it gets warm almost instantly.

I also appreciate how quiet this space heater is. It says it runs at just 37dB, and I believe it is because the brushless DC motor in this fan makes almost no noise at all.

From an EMF safety perspective, the PTC ceramic heating and lack of WiFi/Bluetooth make this a better option than most smart-enabled models.

However, since this is a fan-forced heater, it does produce some magnetic field radiation from the internal motor.

I tested it with an EMF meter, and at a distance of 5-6 feet, readings were very low. But as always, keeping some distance is key to minimizing exposure.

DeLonghi HMP1500 Mica Panel Heater

Check out the current price here
This would be my top pick for a heater intended for a bit larger of a room.

Now, to be clear, this heater will still emit a fairly large amount of EMF radiation.

However, since it is intended for a larger room, you can have it farther away from where you are currently sitting and working.

You can also wall mount it, which would allow it to be at a maximum distance.

Like we talked about above, any space heater is going to emit radiation, but as long as you stay about 5 or so feet away, your exposure to it should be almost nothing.

Some other benefits of this fan are:

• It's quiet, does not use a fan
• Has tip over protection
• Has overheat protection
• Easy and light to carry around

I'd like to note here that none of these EMF meters will emit NO EMF radiation, but these would be my top choices.

The most important thing is to get a quality EMF meter (check the next section) and measure the radiation for yourself.

If you feel that it is too high, simply return it and try one of my recommendations or another unit altogether.

How To Measure EMF Radiation From A Space Heater

This is relatively simple, but it all starts with getting the right EMF meter.  I have and highly recommend, the TriField TF2 (read my review).

It is a fantastic EMF meter that is simple to use, really accurate, and measures all kinds of EMF radiation (which is super important).

Once you have a quality EMF meter, here is how I would measure a space heater:

• Step 1: Set your EMF meter to measure electric field radiation.
• Step 2: With the heater off and unplugged, take a baseline reading near the device to check for ambient radiation.
• Step 3: Plug in the heater and turn it on.
• Step 4: Start measuring from about 10 feet away from the heater.
• Step 5: Slowly move closer to the heater, noting how the radiation levels increase as you approach.
• Step 6: As you get very close, expect the radiation levels to rise exponentially higher.
• Step 7: Repeat these steps with your EMF meter set to the magnetic field setting

Tips To Reduce Radiation Exposure From Space Heaters

Other than getting a good EMF meter to measure and test radiation, the best thing you can do is maintain distance from the heater itself.

There aren't many devices or products you can get that will reduce the radiation from something like a space heater.

There are whole home EMF protection products that you can get, but I don't personally believe they will do much to help.

If you maintain a maximum distance, of 5-10 feet from the heater, your exposure to radiation from that device itself will be very little.

Frequently Asked Questions

I wanted to write out some quick answers to some of the more common questions I've gotten on this topic.

Are there “zero EMF” heaters?

No, there really aren't heaters that will emit absolutely zero EMF radiation.

All electric heaters are going to emit at least some electromagnetic fields because they rely on electrical currents to generate the heat.

However, some types of heaters come pretty close to zero EMF radiation, such as oil-filled radiators. These emit almost no EMF radiation when they're unplugged, and even when they are running, they emit much less magnetic and electric field radiation than other types of heaters.

Do EMF Levels vary with heat settings?

Yes, the EMF levels from space heaters, especially the magnetic fields, are directly tied to the amount of electrical current flowing through the heater.

When you have your heater on a lower heat setting, it draws less power, which reduces the strength of the magnetic fields it's emitting.

Can I shield my heater with something?

While materials are available that block EMF radiation, blocking the radiation from a heater can be a bit tricky.

This is mostly due to the fact that EMF-blocking materials are usually metal mesh made of silver or copper. These materials can interfere with the heaters and even pose a fire risk if placed too close to the heating element.

A simpler and safer alternative is to focus on maintaining distance from the heater and using low-EMF models.

I hope you enjoyed my article on low EMF space heaters, if you did, please consider sharing!