Top 5 Best Space Heaters Under $100 - Best for Large & Small Rooms

Updated: Dec 19th, 2022

What are the most energy-efficient space heaters?

Well, they are simply units that:

  1. Provide us with as much heating output as possible
  2. For the lowest electricity expenditure.

If you need to heat up indoor spaces safely and effectively, buying one of the most energy-efficient space heaters makes a whole lot of sense.

The truth is that because a new type of heater has hit the market that big energy companies are trying their best to stop as it is saving Americans THOUSANDS of dollars on their electricity bills while ALSO providing them with comfortably hot homes.

To help you out, we decided to buy, review & test 2022’s most popular and efficient heaters on the market to see which ones are truly the best.

Our testing revealed that buying a heater from a big brand can actually be a waste of money as they’re already established on the market and don’t need to “fix what’s not broken”.

So it seems the winner is from a smaller company that figured out they had to re-invent the wheel to beat the competition.

And they did, in every last aspect: Safety, User control, Quick heating, Silent operation, Portability, Aesthetics, and Price.

Here’s our Top 5 Picks of 2022, with a full review of our top pick at the bottom-

Exclusive 50% Deal



"Editor's Choice"

3,489 Reviews

Limited Time Promo: 50% Off




2,730 Reviews




"Best for small space"

1,439 Reviews




"Very Good"

3,913 Reviews





1,039 Reviews

Exclusive 50% Deal



"Editor's Choice"

3,489 Reviews

Alpha Heater Test Results - the Most Energy Efficient & Poweful Space Heater Under $100

We bought and tested them all.

The best portable heater of 2022 is surprisingly won by a small brand, Alpha Heater.

Tech, price/quality ratio and customer support all came in first.

Its strong heating power were also unmatched.

It passed every test with flying colors, including the most important one – keeping our homes warm for an affordable price.

Under our controlled testing, the Alpha Heater rapidly heated up a cold, 54 degree room to a warm 75 degrees in just 2 minutes.

This was no box room either, although it will be perfect for that. We ran our test in a 375sqft living room, so that level of warming was much more than we expected.

For results like that, you’d think it would be burning through the electricity at a rapid pace – but surprisingly, it was the exact opposite. Alpha portable space heater is the most energy efficient space heater we tested, making it incredibly cheap to run.

With a portable heater this good, you may actually worry about rooms becoming TOO hot, but thankfully the Alpha Heater has multiple settings to suit any room size or temperature preference. It was so easy to get the desired temperature we felt comfortable at.

Portability is another area where Alpha Heater scores top marks. It’s so small you can easily place it in rooms of all sizes. It would be perfect to give to a child moving into a new apartment or dorm room, as it’s so light and easy to transport. You could also attach a mobile power bank and take it on with you.

But what shocked us most was the price – it’s incredibly affordable for something that works so well. And considering it comes with a full money-back-guarantee – Alpha Heater is a no brainer.

If you want a small space heater that keeps your home warm and comfortable at all times – the Alpha Heater is our #1 choice.

Don’t Throw Your Money Into the Bottomless Pit of The Electric Company! It Only Costs Pennies to STAY WARM and HAPPY This Winter!

To take advantage of their exclusive 50% discount – order right now from their official website.

“Not only did I save a bunch of money, but what I loved about this was you could set it up literally anywhere. It was always instant-warm. Never had to wait for the big, noisy central heating system or oil-filled radiant heater anymore!”
Austin D.

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