Webb vs Mountfield Patio Heater

Webb WEH-13R Patio Heater Review

The Webb WEH-13R is a popular choice for those wanting the highest heat output in this comparison. At 13kW, it can warm a larger patio area up to 25 square metres, making it suitable for bigger gatherings or open spaces. Owner reviews on retailer sites highlight its quick heat-up time and the convenience of the adjustable telescopic pole, which lets you tilt the reflector to direct warmth where needed. Some users note that the powder-coated steel can show rust after a few seasons if left uncovered in damp conditions. The piezo ignition is generally reliable, though a small number of owners report needing multiple clicks on first use. Overall, it offers strong performance for the price, but requires some care with storage.

Mountfield 12kW Patio Heater Review

The Mountfield 12kW model is built with a focus on safety and durability. Its stainless steel burner and powder-coated body resist corrosion better than the Webb's all-steel construction, according to owner feedback. The oxygen depletion sensor (ODS) is a key safety addition that automatically shuts off the gas if oxygen levels drop, which is reassuring for use in partially enclosed areas. The fixed height is a minor drawback for some, but the unit feels more solid and stable on its base. Heat output is slightly lower at 12kW, covering around 20 square metres, which is still ample for most standard patios. Owners consistently praise its build quality and ease of assembly.

What to Check Before Buying a Patio Heater

Before you choose between these two, consider your patio size. Measure the area you want to heat — a 12kW unit covers roughly 20 sq m, while 13kW covers up to 25 sq m. Check your gas supply: both run on propane, but the Webb can also use butane. Think about storage space — both have wheels but the Mountfield is slightly heavier. Finally, look at safety features: the Mountfield's oxygen depletion sensor adds peace of mind if your patio is under a pergola or awning.

Mistakes to Avoid When Buying a Patio Heater

A common mistake is underestimating the importance of wind protection. Patio heaters lose efficiency in breezy conditions, so position yours against a wall or use a windbreak. Another error is buying a unit too large for your space — overheating a small area can be wasteful and uncomfortable. Finally, don't neglect the gas regulator: ensure you have the correct propane regulator for your chosen model, as some come without one.

Heat Output and Coverage

The Webb's 13kW output gives it a clear edge in raw heating power. It can warm a larger area faster, which is ideal for open patios or when entertaining guests. The Mountfield's 12kW is still effective for standard-sized gardens but may struggle in very open or windy spots. Both use a parabolic reflector to direct heat downward, but the Webb's adjustable tilt allows you to angle the heat more precisely. Owner reviews suggest the Webb feels noticeably warmer within a 2-metre radius, while the Mountfield provides a more even, gentle heat across its coverage zone.

Build Quality and Durability

Mountfield has a reputation for better corrosion resistance thanks to its stainless steel burner and thicker powder coating. Owner feedback on forums and retailer sites frequently mentions that Mountfield units hold up better after two or three British winters. The Webb, while functional, has more reports of rust developing on the pole and base after prolonged outdoor use. Both come with a 2-year warranty, but the Mountfield's construction inspires more confidence for long-term ownership. If your patio heater will stay outside year-round, the Mountfield is the more durable choice.

Safety Features

Both heaters include a tip-over shut-off switch that cuts the gas supply if the unit is knocked over. The Mountfield goes a step further with an oxygen depletion sensor (ODS), which is a legal requirement for some indoor-rated heaters but is a valuable extra for patio use in semi-enclosed spaces. This sensor automatically shuts off the heater if it detects low oxygen levels, preventing carbon monoxide buildup. The Webb lacks this feature, so it should only be used in well-ventilated outdoor areas. For families with children or pets, the Mountfield's additional safety layer is a significant advantage.

Ease of Use and Assembly

Both models are straightforward to assemble, with most owners reporting setup times of 20-30 minutes. The Webb's telescopic pole is a practical feature, allowing you to adjust the height from 1.5m to 2.2m to suit different table heights or seating arrangements. The Mountfield's fixed height is simpler but less flexible. Both have wheels for moving, though the Mountfield's slightly heavier weight makes it feel more stable when rolling over uneven paving. The piezo ignition on both is similar, with the Webb occasionally requiring a second press in cold weather according to some reviews.

Price and Value

Webb typically prices its WEH-13R lower than the Mountfield 12kW, making it the budget-friendly option for those who prioritise heat output. The Mountfield commands a small premium, justified by its superior build materials and extra safety sensor. Owner ratings slightly favour the Mountfield (4.3 vs 4.2), reflecting higher satisfaction with durability. For occasional use on a covered patio, the Webb offers excellent value. For year-round outdoor heating and peace of mind, the Mountfield's higher price is money well spent.