Gtech Patio Heater Review: Models, Coverage, Cost, and Safety

The Gtech HeatWave (model HW01) is a wall-mounted electric infrared patio heater that pumps out 2 kW of heat, claims a 6-metre warming range, and reaches full warmth in about one second. It runs on a standard 220–240 V household outlet, weighs just 1.5 kg, and carries an IP65 weatherproof rating, making it a genuinely practical pick for covered patios, pergolas, and sheltered outdoor areas. For most people searching 'Gtech patio heater,' this is the one model in the lineup worth knowing about right now.

Which Gtech patio heater are we actually talking about?

Gtech is primarily known for cordless garden tools and vacuums, so if you stumbled onto their patio heater range expecting a big product family, the reality is simpler: the HeatWave HW01 is the main (and currently most widely available) patio heater model from the brand. It's a wall-mounted infrared unit rather than a freestanding propane tower or tabletop heater, which immediately tells you a lot about where it fits in the market. If you were hoping for a portable propane option or something like a pellet-burning fire pit, the HW01 isn't that. But if you need a no-fuss, plug-in outdoor heater you can mount once and forget about, it deserves a proper look.

The specs that actually matter

Let's run through the numbers that will actually affect your buying decision, not just the marketing highlights.

The 2 kW output sits right in the middle of the electric patio heater market. It's not the most powerful unit you can buy (some electric models push 3 kW), but for a heater of this size and weight, 2 kW is respectable. The 6-metre range claim comes from the manufacturer, and like most 'maximum range' figures it assumes calm conditions and direct line-of-sight from the heater element to the person below. In real life, expect comfortable warmth within 3–4 metres in typical conditions. The IP65 rating is a genuine plus: it means fine dust can't get in and the unit can handle low-pressure water jets, so light rain and damp outdoor air won't damage it.

How it actually performs outside

Covered patios and pergolas: where it shines

The HW01 is genuinely well-suited to covered or semi-enclosed spaces. Infrared heat works by warming objects and people directly rather than heating the air, which means in a pergola or under a patio roof, the warmth reflects off surfaces and concentrates around the people sitting underneath. For a small to medium covered patio (think 10–20 square metres), one HW01 mounted at the recommended height of at least 180 cm above the floor does a solid job at extending the usable season into autumn and mild winter evenings. On cold but still nights under a cover, the 2 kW output is noticeably effective within 2–3 metres.

Open, exposed, and windy spaces: honest limitations

Out in the open, infrared heaters face the same physics challenge every outdoor heater does: wind carries warmth away before it reaches you. The HW01 is not a strong performer in exposed, windy gardens. At anything more than a light breeze, the effective comfort distance drops noticeably, and you'll want to be within 2 metres of the unit rather than relying on that 6-metre figure. If your patio is exposed on multiple sides with regular wind, you'll likely need either a higher-powered unit or a propane tower heater that throws more BTUs into the air. For large open terraces, one 2 kW infrared panel is undersized.

Patio size guidance

• Small covered patio (up to 12 sq m): one HW01 works well, especially mounted centrally on a wall or ceiling joist
• Medium covered patio (12–25 sq m): one unit handles it at the lower end; two units at opposite walls for the upper end
• Large open patio or decking (25+ sq m): the HW01 is not the right primary heater here — consider a higher-output propane or natural gas unit instead
• Under a parasol or gazebo: useful as supplementary heat but not a standalone solution in cold temperatures

Ease of use: setup, controls, and day-to-day living with it

One of the HW01's strongest selling points is how simple it is to live with. There's no gas line to connect, no propane tank to swap, and no ignition system to troubleshoot at 9 pm on a cold Friday night. You plug it into a standard outlet, mount it on the wall at the correct height (at least 180 cm off the floor, at least 40 cm from side walls as specified in the manual), point it where you need heat, and switch it on. The one-second warm-up is real: infrared panels don't need any pre-heating cycle. You get heat the moment power flows.

The controls are minimal by design. There's no elaborate digital interface or app pairing to worry about. At 1.5 kg, the unit itself is light enough that one person can handle installation easily. The 190 cm cable is long enough for most wall positions to reach a nearby outdoor socket without an extension lead, though you should check your specific setup before buying. There are no wheels or carrying handles since this is a fixed-mount unit, so portability isn't part of the equation. If you want to move your heat source around the garden, this isn't your heater.

Safety features worth knowing

• IP65 weatherproof rating protects against rain and outdoor moisture
• Manual specifies minimum installation clearances (180 cm above floor, 40 cm from side walls) to prevent heat buildup near combustible surfaces
• Infrared heating elements are enclosed rather than open-flame, eliminating fire risks associated with gas heaters
• No combustion means no carbon monoxide risk, making it safer for semi-enclosed spaces than gas alternatives
• 2-year manufacturer warranty covers material and manufacturing faults

What it costs to run, and whether it's worth it

Running costs for the HW01 are straightforward to estimate because it's a fixed 2 kW electric unit. In the UK, where this heater is primarily sold, electricity typically runs around 24–28 pence per kWh (as of mid-2026). At 2 kW, the HW01 costs roughly 48–56 pence per hour to run at full power. Run it for three hours on a weekend evening and you're looking at around £1.50 per session. Over a full outdoor season of, say, 60 such evenings, that's about £90 in electricity. For context, a standard 13 kg propane gas patio heater burns through roughly £20–25 of gas per tank and typically provides 8–12 hours of heat at maximum output depending on the model.

The electric running cost is a real consideration if you use the heater heavily. Where the HW01 wins on cost is in upfront simplicity: no gas delivery, no tank refills, no regulator replacement. The unit itself is priced competitively for a branded infrared panel with IP65 rating and a 2-year warranty. For occasional use on a small covered patio, the total cost of ownership is genuinely low. For heavy daily use on a large space, the running costs stack up and you'd likely be better served by a more efficient infrared unit with higher output or a natural gas heater permanently plumbed in.

Warranty and parts

The 2-year guarantee covers manufacturing and material defects, which is solid for an outdoor heater at this price point. If you run into a fault that the manual's troubleshooting steps don't fix, the Gtech customer care line can walk through further diagnostics and send replacement parts where applicable. Parts and service availability can vary by region (Gtech's Iceland operation, for example, has a specific local repair workshop), so if you're outside the UK, it's worth confirming parts availability before buying. For most UK buyers, Gtech's support network is well-established through their main product lines.

Gtech HW01 vs other fuel types and brands

The most useful question to ask isn't just 'is the Gtech good?' but 'is a 2 kW wall-mounted infrared heater the right type for my situation?' Here's how it stacks up against the main alternatives.

Against other infrared electric brands, the HW01 competes directly with options like Infratech wall-mount models, which offer higher wattage options but at a significantly higher price. If you are comparing options, these infratech patio heaters reviews can help you judge performance, build quality, and value for similar covered spaces. If your budget allows and you need more power for a larger covered space, it's worth comparing those. For buyers who want fire-pit ambience alongside heat, something like a pellet-burning option or a Tiki-style fire pit brings a different experience entirely. For more product comparisons and buyer impressions, read our thermo tiki patio heater reviews to see how Tiki-style options stack up. If you are specifically looking for tiki brand patio fire pit reviews, compare features like heat output, burn time, and build quality against your space and climate Tiki-style fire pit. The Gtech wins on simplicity, weatherproofing, and zero-fuss operation, not raw heat output.

Who should buy the Gtech HW01 (and who shouldn't)

Best for

• Small covered patios up to around 15 square metres where a wall-mount makes practical sense
• People who want zero maintenance and instant heat without gas connections or fuel deliveries
• Renters or homeowners who can mount a single unit and leave it in place season after season
• Anyone who values a clean, flush-mounted aesthetic over a freestanding heater that takes up floor space
• Covered dining areas or outdoor kitchens where permanent heat directly overhead is the priority
• Budget-conscious buyers who don't want to overpay for a brand name on a basic infrared panel

Not the best fit for

• Large open decking or exposed garden patios where wind will defeat the infrared warmth
• Anyone needing portability — this is a fixed-mount unit with no wheeled base
• Very cold climates where you need 3 kW or more to stay comfortable in winter
• Buyers who want the social experience of an open flame or fire pit as part of the outdoor setting
• Spaces without an accessible outdoor electrical socket within 190 cm of the planned mount position

Maintenance, troubleshooting, and keeping it safe

Routine maintenance

One of the best things about an electric infrared heater is how little upkeep it needs compared to gas or pellet alternatives. There's no burner to clean, no igniter to replace, and no fuel system to inspect. To keep the HW01 running well: wipe the front panel with a dry or lightly damp cloth a few times a season to remove dust and debris that can affect heat output. Make sure the mounting hardware stays tight, especially after winter when temperature swings can loosen fixings. Check the cable and plug for any signs of wear or water ingress at the start of each outdoor season.

Troubleshooting common issues

• Heater not warming: check the power outlet is live and the cable connection is secure; the one-second warm-up means it should be instant, so any delay suggests a power issue
• Heat feels weak: check that you're within 3–4 metres and in direct line of sight from the element; also verify the unit is mounted at the correct height and angle
• Unit trips the circuit breaker: do not share the circuit with other high-draw appliances; the HW01 draws a full 2 kW which can overload a shared outdoor socket
• Visible damage or burning smell: switch off and unplug immediately; contact Gtech customer care before attempting any fix yourself
• Moisture inside the unit (despite IP65): check that the mounting position isn't directing water runoff directly onto the unit; IP65 handles splash but not sustained immersion

Safety do's and don'ts

1. Do mount the unit at least 180 cm above floor level and at least 40 cm from side walls — these clearances are in the manual for a reason
2. Do use a qualified electrician if you're adding a new outdoor socket rather than extending an indoor one
3. Do turn it off at the socket when the patio is unattended for extended periods
4. Don't mount it beneath low, combustible ceilings (untreated timber, thatch, etc.) without verifying clearance from the manual
5. Don't use it as an indoor heater — it's rated for outdoor/semi-outdoor use and the IP65 rating is no substitute for indoor-rated appliances
6. Don't attempt to modify the cable length or unit yourself — doing so voids the 2-year warranty and creates a genuine safety risk

Overall, the Gtech HeatWave HW01 is a well-specified, sensibly priced infrared patio heater for a specific use case: a small to medium covered outdoor space where you want plug-in simplicity, fast heat, and minimal long-term hassle. It's not trying to be a propane powerhouse or a social fire-pit centrepiece, and it shouldn't be judged as one. If your patio fits the profile, it's a very solid buy. If you specifically want the best patio heater for your space, reading trustech patio heater reviews can help you compare performance and value solid buy. If it doesn't, the alternatives across propane, natural gas, and higher-output infrared options are worth exploring before committing. If you are also shopping for a timber patio heater style, big timber patio heater reviews can help you compare build quality, heat output, and real-world performance.