Chillchaser Shadow 4kW Weatherproof Patio Heater

If you’re in the market for a high-end low glare patio heater that can be mounted on the ceiling or wall, then the Chillchaser Shadow range might be the perfect patio heater for you!

Chillchaser Shadow – 4kW Weatherproof Wall or Ceiling Mounted Patio Heater Review

Chillchaser is an established presence in the UK market. You may have even seen their heaters on Dragon’s Den in 2009! They specialise in commercial grade patio heaters and offer re-branded Warmwatcher heaters as well.

Heating Area

A 4kW heater gives off approximately 13,656BTUs and as you would expect from a heater that costs just shy of £500 it doesn’t skimp on heating area coverage.

Thanks to a specially built parabolic reflector this heater achieves about 15sqm of heating coverage.

This is dependent on whether the heater is ceiling mounted or wall mounted, you would expect 15sqm from a ceiling mounted installation and a little less from a wall-mounted installation.

Bulb Life & Heating Type

These low glare infrared bulbs offer an extended life over standard halogen bulbs. With a stated life expectancy of between 5,000 and 7,000 hours.

Offering superior and instant infrared radiant heat. Once the bulbs have expired they are easy to replace with the genius EasyFit lamp system.

Power Settings & Specifics

This heater has no adjustable power settings and this is due to it targeting the commercial market over the home user. The upgraded shadow XT with Bluetooth remote offers complete power control if you need an adjustable heating system.

We’re happy to announce however that Chillchaser has offered this heater with a power cord that is long enough for most users! An oversight by many manufacturers that has finally been rectified. With the power cord measuring 4.5m long.

Power info: 240v, 50/60Hz.


These sleek and stylish heaters are available in both black and silver. They would make a perfect addition to any indoor or outdoor area!

Features & Extras

The Chillchaser shadow series are provided with wall brackets and hanging chains ready for easy installation. Each heater comes with a 2-year warranty and offers ingress protection as detailed below.

Weatherproof Rating

The shadow series has an ingress protection rating of IPx5

Solid rating X – not rated for protection from solids.

Liquid rating 5 – perfect for outdoor installation as this heater can withstand splashing water and low powered water jets.

Suitable For

We’d recommend these heaters for commercial properties like pubs and restaurants. Any business that needs to heat an area indoors or outdoors would do well with these heaters! While you could use these at home, there are better shadow series heaters with adjustable heat settings available.

How much does the Shadow 4kW Patio Heater cost to run?

Based on a purchase price of £494.99 *check price* these patio heaters will cost you just 7p per hour before electricity. Making them commercially affordable.

To calculate the cost of electricity we need to do a little bit of math. These figures are based on the average price of 14.7p per kWh in the U.K.

Heater running costs:

Full Power (4000W) – 4.0kW x 1 hour = 4.0kWh x 14.7p = 58.8p (per hour)

Assuming we were to use this heater for 9 hours per day (9am-5pm / 6pm-3am).

Full Power (4000W) – Our monthly electric bill will be £158.76

Perfectly reasonable for a commercial-grade heater.

Heater Specifications

  • Cost at time of review (5th September 2017): £494.99 – Check Latest Price
  • Type of heater: Electric, Infrared
  • Suitable for: Commercial, Home
  • Comes with: 4.5m Power Cable, Mounting Chains & Wall Bracket
  • Height: 15cm
  • Depth: 10cm
  • Width: 105cm
  • Weight: 5kg
  • Power settings: 4000W
  • Cost to run (per hour): 58.8p
  • Additional: IPX5 Rated

PatioMate’s Thoughts

Chillchaser Shadow 4kW Patio Heater

Chillchaser Shadow 4kW Patio Heater

Purchase Cost


    Running Costs









            • Weatherproof (IPX5)
            • Ceiling or Wall Mounting Brackets Included
            • Long Power Cable
            • Long Element Life /w Cheap Replacements


            • No Adjustable Power Settings
            • Better Options for Home Users Available

            This isn’t the cheapest commercial patio heater on the market but it is one of the best! Also available in 3000W and 2000W versions.

            Or if you’re looking for remote control version ShadowPlus† 2000W with remote controlShadowPlus† 3000w with remote control.