Hot tub with internal heater


Working in harmony with nature the wood-fired heater is the most economical and energy efficient way to bring a hot tub up to and maintain a comfortable temperature.

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Working in harmony with nature the wood-fired heater is the most economical and energy efficient way to bring a hot tub up to and maintain a comfortable temperature. Simply light the fire, add logs, watch and savour the aroma and warm glow of the fire working its magic. In 1-3 hours you will be enjoying that spa feeling. All our outdoor hot tubs are with fiberglass shell and timber cladding, equipped with stainless steel wood fired heater. Hot tub construction is made of raw spruce wood, which makes it blend well into nature. The fiberglass shell inside the tub is easy to clean, very durable, long lasting and can be coloured in grey, blue or white/cream. Comfortably curved seats are friendly to body lines. No flat wooden benches, no harsh 90° angles — once you get in, you’ll want to stay in.


    • Inner diameter: 180 cm
    • Outer diameter: 200 cm
    • Depth: 85 cm
    • Height: 94 cm
    • Bench width: 32 cm
    • Bench height: 26 cm
    • Weight: 180 kg
    • Water: 1200 l
    • For 3-5 people

Standard equipment:

    • Fiberglass hot tub shell 180 cm ø
    • Inside heater 18 kw
    • Cleaning tools
    • Wooden fence with a drink holder
    • 2 m high chimney with a cap
    • Spruce finish (selected colour or oil)
    • Steps type 1 (Standart steps)
    • Water stirring paddle
    • The drainage valve.

Amber Grill’s Hot Tub with Internal Heater

Discover the innovative Amber Grill hot tub with an internal heater – a true game-changer in the world of hot tubs. While most hot tubs come with external heaters, this luxurious option employs a simple yet highly effective internal heater. The Amber Grill hot tub emulates the natural world using the age-old method of burning wooden logs and offers a more efficient and economical way of heating the water. The process is simple – light a fire, add logs as desired, and enjoy the subtle, fragrant aroma of burning wood that enhances the relaxation experience while enjoying the warmth for 1 to 3 hours.

Not only does this hot tub provide a relaxing spa-like experience, but it also offers a unique opportunity to connect with nature and enjoy the timeless tradition of wood-fired heating. Treat yourself to the ultimate casual luxury with the Amber Grill hot tub with an internal heater.

Construction of The Internal Heater Tub

Experience the ultimate durability and longevity with Amber Grill’s hot tub, constructed from raw spruce wood; the hot tub promises to stand the test of time. The interior is designed with a fibreglass shell and timber cladding, while the wood-fired heater is made with rust-resistant stainless steel for worry-free enjoyment.Although the wood-fired heater is efficient and economical, it does consume up to 18 kW of electricity. However, Amber Grill has thought of everything – their hot tub comes with a water stirring paddle for easy circulation, as well as a drainage valve installed at the bottom of the tub. Plus, the curved seats provide optimal comfort for customers of all ages, ensuring good posture for the ultimate relaxation experience.

Amber Grill’s hot tub is designed with the human body in mind, with streamlined curves that promote comfort and relaxation. And don’t worry about cleaning – the company provides essential cleaning tools upon purchase, making maintenance a breeze. Treat yourself to the ultimate luxury and durability with Amber Grill’s hot tub.

Pricing and Additional Features

Starting at £4400 and going up to £5975, this hot tub is equipped with an internal heater and can comfortably fit up to 6 people. It’s recommended to avoid using the tub alone, as the smallest size available online can accommodate at least three people. After all, the more, the merrier, right? Additionally, the hot tub can be customised with three interior colour options, including blue, white, and grey. However, it’s important to note that optional extras such as LED lights, spa systems, metal decorations (e.g., trees and horses), and tub covers come with additional costs ranging from £475 to £585. The most expensive add-on is the massaging spa system, which costs 585 pounds. The tub covers are available in various materials, including spruce wood, larch, thermowood, redwood, WPC, and an insulated leather cover. Spruce wood is the most affordable option, while redwood is one of the priciest add-ons at £559.

Additional information


3-5 People, 4-6 People

Inside color

Blue, Grey, White

Exterior color

Spruce, Larch £182, Thermowood £221, Red wood £975, WPC £429