Infared Sauna
Warmth that works from within.
Our full-spectrum infrared cabin heats your body directly rather than the air around you. The room stays a gentle 45–60°C, yet you sweat deeply and feel the warmth soak into muscles and joints.
Infrared is light you feel as heat, the same warmth you feel from the sun on your skin, without the UV. It is the softer side of fire at Agni-Jal: calm, comfortable and quietly powerful.
An Infrared facility by the experts.
Our cabin was specified by Spazio Design London for performance, comfort and low electromagnetic emissions.
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Full-spectrum heaters. Near, mid and far infrared, each with its own role. Near infrared works closest to the skin's surface; far infrared warms more deeply and drives the sweat.
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Low-EMF design. Harvia Vitae Infrared Heaters chosen for very low electromagnetic field levels, so you can relax fully.
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Fast warm-up. The cabin is ready in minutes, and sessions are comfortable from the first moment.
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Natural timber. Lined in Light Colored ASPEN for a calm, warm interior.
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Comfort for longer stays. Sit back and settle in for 20–30 minutes with music if you want.
Benefits of the infrared sauna
Because the air stays cooler, infrared is ideal if you find a traditional sauna too intense, or simply want a longer, gentler session. Research on infrared heat is younger than Finnish sauna research, but early studies are encouraging.
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Muscle recovery. Studies on athletes suggest infrared sessions may help muscles recover after hard training and ease soreness.
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Relief for stiff joints. Gentle, deep warmth can loosen stiffness and make movement feel easier, without high air temperatures.
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Relaxation without intensity. The lower heat makes infrared calming rather than challenging. Many people find it easier to switch off, breathe slowly and simply rest.
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Circulation. Infrared warmth widens blood vessels and increases blood flow, which leaves you feeling warm and restored for hours.
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Radiant skin. A deep sweat at a comfortable temperature, plus near-infrared light, may support a clearer, brighter complexion.
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Better sleep. As with any heat session, the natural cooling that follows can help you fall asleep more easily.
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A gentle entry to contrast therapy. Infrared followed by our cold plunge is an ideal first contrast ritual for beginners.
Your infrared session at Agni-Jal
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Shower and dry off. Sit on a towel.
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Settle in for 20–30 minutes. Breathe slowly and let the warmth build.
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Sip water during and after your session.
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Cool down with the cold plunge or a cool shower if you wish.
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Rest in the relaxation lounge before your next round or treatment.
Try pairing infrared with the red light therapy pod for a complete light-based recovery session.
Is infrared right for me?
Infrared suits most healthy adults, including many who find a Finnish sauna too hot. Please consult your GP first if you are pregnant, have a heart condition, low blood pressure, metal or silicone implants, or take medication that affects heat tolerance. Avoid alcohol before your session, and step out if you feel lightheaded.
Frequently asked questions
What temperature is an infrared sauna?
Ours runs at 45–60°C, much cooler than a Finnish sauna. You still sweat deeply because the warmth acts on your body directly.
What does full-spectrum mean?
It means the cabin uses near, mid and far infrared together, rather than far infrared alone.
Infrared or Finnish sauna: which is better?
Neither is better; they feel different. Finnish sauna is hot, steamy and invigorating. Infrared is gentle, dry and deeply warming. Your Signature membership includes both.
How long is an infrared session?
20–30 minutes is typical. Start shorter on your first visit.
How often can I use it?
Three to four sessions a week is a common rhythm. Weekday visits are unlimited on every membership tier.
What should I bring?
Robes, towels and toiletries are provided. Just bring yourself, swimwear and a water bottle.
Is Agni-Jal really for women only?
Yes. Agni-Jal is a private, women-only sanctuary in Hampstead, and entry is by invitation only.