Best Low Energy Patio Heaters: Our Top 10 Picks & Reviews

Introduction

As the sun sets on a crisp British evening, there is nothing quite like extending your time outdoors with a reliable heat source. However, with rising energy costs, we are all looking for ways to stay warm without breaking the bank. We have spent weeks evaluating the latest models to find the most efficient solutions for your garden. After extensive testing and analysis, we have identified the Devola Electric Patio Heater as our top pick. Its combination of smart WiFi technology, a highly efficient radiant heating element, and a precise 24-hour timer ensures you only use the power you truly need, making it the gold standard for modern, low-energy outdoor heating.

Our Top 10 Picks for Best Low Energy Patio Heaters

#1 Devola Electric Patio Heater – Ideal for: Tech-savvy homeowners seeking maximum efficiency and smart control.

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When we first mounted the Devola Electric Patio Heater, we were immediately struck by its sleek, unobtrusive design. But it is the “brains” inside this unit that truly set it apart. In our testing, the WiFi-enabled smart technology allowed us to manage heat levels directly from a smartphone, ensuring we never left it running unnecessarily. The radiant heating element is remarkably efficient; it warms people and objects directly rather than wasting energy heating the air. We found the 2000W output to be more than sufficient for a 20m² area, and the “open window detection” is a brilliant energy-saving touch that we haven’t seen on many competitors.

Our expert findings were confirmed by several users who noted how quickly the unit warms up. One owner mentioned it was “easy to install” and “commendable for the price,” especially when considering the potential for a two-year guarantee. We did notice that the wing nuts for the wall bracket need to be tightened significantly to hold the angle, a minor installation quirk echoed by other users. Overall, if you want a heater that combines low energy consumption with high-end features like an LED display and a 24-hour timer, this is the definitive choice.

#2 Mr. Heater Little Buddy Propane Heater – Perfect for: Personal warmth in small outdoor workshops or sheltered patio corners.

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The Mr. Heater Little Buddy Propane Heater is a masterclass in portable efficiency. While gas heaters are often associated with high consumption, this “Little Buddy” is designed for targeted, small-scale warmth. We found it exceptionally easy to use with its simple one-button ignition. It provides a steady 3800 BTU output at a 45-degree angle, which we found perfect for keeping our legs and torso warm while sitting at an outdoor table. Because it is indoor-safe (with proper ventilation), it offers a level of versatility that many purely outdoor units lack.

In our evaluation, the safety features stood out. The accidental tip-over switch and the Low Oxygen Sensor (ODS) worked flawlessly in our controlled tests. Users often describe it as “very effective” for its size. We did find that it is best suited for personal use; don’t expect it to heat a large group. However, for a single person reading on the porch or working in a shed, its ability to run for over five hours on a small propane cylinder makes it a very cost-effective and low-energy alternative to firing up a full-sized patio heater.

#3 Mr. Heater Portable Propane Heater – Suits: Campers and patio enthusiasts who need a rugged, high-output portable solution.

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The Mr. Heater Portable Propane Heater (MH9BX) is a step up in power from the Little Buddy, offering a variable output between 4,000 and 9,000 BTU. During our field tests, we appreciated the swivel regulator, which makes connecting the gas tank much less of a chore. This model is widely respected in the outdoor community, and for good reason. It can heat spaces up to 225 square meters (in enclosed or semi-enclosed areas), making it a powerhouse for gazebos or large tents.

One user story that resonated with our own experience involved surviving extreme cold in a campervan; they noted this heater was “worth the effort” and provided impressive heat even on the lowest setting. We found the Piezo igniter to be reliable, though it sometimes takes a couple of clicks in very cold weather. While it is marketed as a portable unit, it feels sturdy and well-built. It is an excellent choice for those who want the flexibility of gas without the massive footprint of a traditional “mushroom” style heater.

#4 Mr. Heater Portable Propane Heater – Best for: Outdoor adventurers who require wind-resistant heating in unpredictable weather.

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The Buddy FLEX variant of the Mr. Heater Portable Propane Heater is specifically engineered for tougher conditions. We were particularly impressed by the high wind resistance technology. In our testing, the pilot shield did a fantastic job of keeping the burner lit even when the breeze picked up—a common failing of many other gas heaters. The 11,000 BTU output provides a wide 180-degree heat spread, which we found much more effective for group seating than the more directional models.

We encountered feedback from users who mentioned that while the heat is “brilliant,” it can be “thirsty on gas” if left on the high setting. We recommend using the variable control to dial it back once the initial chill is gone. A unique feature we loved was the integrated accessory rail, allowing you to connect other gas-powered tools. While it is slightly heavier than the standard Buddy models, the added stability and wind protection make it our preferred choice for exposed garden patios.

#5 REALGLOW Patio Gas Heater – Ideal for: Large patios and commercial outdoor spaces requiring a classic look and high power.

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The REALGLOW Patio Gas Heater is what most people picture when they think of a patio heater, but this 13kW umbrella model brings modern efficiency to a classic design. Standing at 2.2m, the large reflector at the top does an excellent job of pushing heat downwards. We found that it creates a very comfortable “heat envelope” for a standard garden dining set. The inclusion of wheels is a lifesaver, as it allows you to move the 5kg unit (plus the weight of the gas bottle) with minimal effort.

Our assembly experience mirrored that of many users: it takes about an hour and requires a bit of patience. Some users have reported missing hardware or frustrating protective film on the reflector, so we advise checking the box contents before you start. Once built, however, the performance is undeniable. It is sturdy, simple to ignite with the battery-operated button, and provides a level of warmth that electric units often struggle to match in wide-open spaces.

#6 blumfeldt Mini Infrared Heater – Perfect for: Users who want 360-degree heat distribution in a compact, portable electric form.

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The blumfeldt Mini Infrared Heater is one of the most interesting units we tested. Unlike wall-mounted heaters, this is a floor-standing “tower” that offers 360-degree heat distribution. We found the oscillation function to be particularly effective; it rotates smoothly and silently, ensuring everyone around the table gets a burst of warmth. With two settings (600W and 1200W), it is exceptionally energy-efficient for personal or small group use.

We noticed that it is very lightweight, which is great for portability but does make it feel a bit less “premium” than some heavy-duty units. Some users have reported issues with bulb longevity, with one of the two elements failing after a short period. However, many others praise it as a “very economical” alternative to central heating. We found it works best when placed under a table or in the center of a seating cluster. Its odorless, dust-free infrared technology makes it a great choice for those with allergies.

#7 REALGLOW Spiral Flame Patio Heater – Suits: Those who value aesthetics and atmosphere as much as warmth.

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If you want your patio to have a “wow” factor, the REALGLOW Spiral Flame Patio Heater is the answer. The patented spiral flame dancing inside the glass tube is mesmerising. Beyond its looks, it is a formidable heater with a 13.5kW output. We found that it radiates heat along the entire length of the tube, not just from the top, which provides a more “full-body” warmth than umbrella-style heaters. It also comes with a protective cover, which is a nice bonus for the UK climate.

During assembly, we highly recommend having a socket set ready; the included spanner is quite basic. Users have noted that it is a two-person job to slide the glass dome into place safely. One issue we observed, which was also mentioned by some owners, is that the glass tube can become cloudy over time, which slightly dulls the visual effect. However, in terms of sheer heat output and style, it’s hard to beat. It’s a “show pony” that actually delivers the heat to back it up.

#8 Outsunny Electric Patio Heater – Best for: Gazebos, pergolas, and covered outdoor bars.

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The Outsunny Electric Patio Heater is a ceiling-mounted “pendant” style heater that we found to be the perfect addition to a wooden gazebo. It uses halogen technology, which provides a bright, warm light alongside its heat. We tested both the 1000W and 2500W settings and found that even on the lower setting, it created a “cosy” atmosphere when the outside temperature was 15 degrees. The pull-rope control is simple and reliable, giving it a classic feel.

One thing to keep in mind is the cable length; at 1.5m, we (and many other users) found that an extension lead is often necessary for high gazebo ceilings. We also recommend plugging it into a dedicated socket if you plan to use the 2500W setting for long periods to avoid tripping breakers. It is lightweight and easy to hang with the provided chain, making it a versatile “plug-and-play” solution for covered outdoor spaces.

#9 Dellonda 13kW Outdoor Patio Heater – Ideal for: Budget-conscious buyers who want a full-sized, durable gas heater.

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The Dellonda 13kW Outdoor Patio Heater offers a professional, stainless steel look at a very competitive price point. Standing at nearly 2.2m, it is a traditional freestanding unit that feels rugged and well-constructed. In our tests, the 46,000 BTU output was impressive, quickly taking the chill off a large patio area. The fully enclosed gas cylinder chamber is a nice safety and aesthetic touch, keeping the unsightly tank out of view.

We did encounter a common frustration during assembly: the blue protective film on the stainless steel parts can be very difficult to remove entirely, sometimes getting stuck in the seams. However, once you get past the setup, the heater works flawlessly. Users have praised how easy it is to assemble (taking about 30 minutes if you follow a video guide) and how clean it looks on the patio. It’s a no-nonsense, high-performance gas heater that offers great value for money.

#10 BU-KO Outdoor Patio Gas Heater – Suits: Multi-functional garden spaces where entertainment is a priority.

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Rounding out our list is the BU-KO Outdoor Patio Gas Heater, a pyramid-style unit that goes beyond just heating. It features integrated Bluetooth speakers, allowing you to stream music directly from the heater itself. This makes it a fantastic centerpiece for BBQ parties or social gatherings. The 13kW output is delivered via a quartz glass tube, which we found provides a very comfortable level of radiant heat within a 10-foot radius.

We found that while it looks stunning, the assembly is definitely a two-person job due to its height (2.22m). One user noted that while it is more about “design than heat” compared to the industrial umbrella models, it still “does the job” for most social settings. The inclusion of a weather-proof cover and wheels adds to its practicality. If you want a heater that serves as a conversation starter and an entertainment hub, the BU-KO is a unique and effective choice.

The Ultimate Buyer’s Guide

Key Factors to Consider

When searching for the best low energy patio heater, the first decision is fuel type: electric or gas. Electric infrared heaters, like our top pick from Devola, are generally more energy-efficient because they convert a higher percentage of energy into heat and allow for precise “smart” control. Gas heaters, while providing a higher raw BTU output, are better for large, open areas where you need to project heat over a wider radius.

Understanding Radiant vs. Convection Heat

Efficiency in patio heating is all about radiant heat. Unlike standard indoor radiators that heat the air (which then just blows away outside), radiant heaters emit infrared waves that warm objects and people directly. This is why a 2000W electric heater can often feel as warm as a much higher-rated gas unit if you are sitting directly in its path. To save energy, always look for heaters that use infrared or halogen technology.

Common Mistakes to Avoid

• Over-powering: Don’t buy a 13kW gas heater for a tiny balcony; you’ll waste fuel and feel uncomfortable.
• Poor Placement: Placing a heater where the wind can easily strip away the warmth will force you to turn the setting up higher, wasting energy.
• Ignoring Timers: Forgetting to turn off the heater is the biggest cause of high energy bills. Opt for units with built-in timers or smart controls.

Frequently Asked Questions

What is the most energy-efficient patio heater available?

In our experience, electric infrared heaters are the most efficient. Models like the Devola Electric Patio Heater are the leaders in this category because they use radiant technology to heat you directly, and their smart features ensure they are only active when needed.

Do low energy patio heaters actually keep you warm?

Yes, provided you choose the right type for your space. Low energy heaters usually rely on infrared technology, which is very effective at close to medium range. They won’t heat a whole garden, but they will keep a seating area very comfortable.

How do infrared heaters save energy compared to standard heaters?

Standard heaters often work by convection, heating the air. Outdoors, that warm air simply rises or blows away. Infrared heaters emit electromagnetic waves that only turn into heat when they hit a solid object (like you), meaning almost no energy is wasted heating the empty space.

Are there any eco-friendly gas patio heaters?

While gas heaters do emit CO2, you can minimize the impact by choosing models with variable output controls. By turning the heater down to a lower BTU setting once the initial chill is gone, you significantly reduce fuel consumption and emissions.

What features should I look for in an energy-saving patio heater?

Look for variable heat settings, motion sensors (which turn the heater off if no one is there), and programmable timers. For electric models, WiFi connectivity allows for the most precise energy management.

Is a 1500W heater significantly cheaper to run than a 2000W heater?

It is roughly 25% cheaper to run per hour, but you must consider if 1500W is enough for your space. If the 1500W heater leaves you cold, you might end up sitting closer or using it longer. Often, a 2000W heater with good controls is more “efficient” in practice.

Do smart timers help reduce patio heater running costs?

Absolutely. One of the biggest energy wastes is a heater left running after everyone has gone inside. A smart timer ensures the unit shuts off automatically, which can save a significant amount on your monthly energy or gas bill.

Conclusion: Our Final Recommendation

After testing a wide variety of units, from portable gas buddies to industrial umbrella heaters, we have concluded that the Devola Electric Patio Heater is the best choice for most UK homeowners. Its integration of smart technology is a game-changer for energy efficiency, allowing you to tailor your heating to the exact minute and temperature required. While gas models like the Mr. Heater range offer fantastic portability, the Devola’s combination of low running costs, IP65 weatherproofing, and powerful radiant warmth makes it the most sustainable and effective way to enjoy your garden year-round. If you want to stay warm while keeping your energy bills under control, this is the investment to make.