Quick verdict: the Sunray Heathrow is a compact 2-person indoor infrared sauna in Canadian hemlock, with five ceramic heaters drawing 1,600 W from a 120V circuit. It suits a couple or a solo user who wants a small, plug-in cabin with Bluetooth and a reading lamp. It skips chromotherapy and carbon panels, and Sunray's own documents disagree on a couple of specs, so check the electrical details below before you buy.
Sunray Heathrow specs at a glance
| Spec | Sunray Heathrow (HL200W) |
|---|---|
| Capacity | 2 people |
| Wood | Canadian hemlock, tongue-and-groove panels |
| Heaters | 5 Rapid Heat ceramic infrared heaters, 1,600 W total |
| Electrical | 120V plug-in; product listing says 15 amp, Sunray data sheet says 20 amp (see below) |
| Exterior (W x D x H) | 48 x 42 x 75 in |
| Interior (W x D x H) | 43 x 41 x 68 in |
| Weight | 315 lb |
| Glass | 10 mm tempered glass door |
| Extras | Bluetooth audio, LED reading lamp, recessed interior and exterior lighting, ergonomic backrest, oxygen ionizer, ceiling vent |
| Warranty | 7 years structure, 1 year electronics, 1 year heaters |
Sources: the Heathrow product listing and the Sunray Heathrow data sheet (PDF).
What it's like to use
Heating: ceramic, not carbon
The Heathrow uses five ceramic infrared heaters. Ceramic elements run hotter on their surface than the large carbon panels in many infrared saunas, so heat feels more concentrated close to the heaters and less evenly spread across the walls. One thing to know: the product name includes "Nano" and the data sheet's feature page mentions carbon nano heaters, but its specification table and our listing both say Rapid Heat ceramic heaters. If heater type matters to you, ask us to confirm with Sunray before ordering. For how the main heater types compare, see our guide to types of saunas and heaters.
The listing gives a maximum of 150°F. Like most infrared cabins, expect to sit at roughly 120-140°F once it's warmed up. Sunray doesn't publish a heat-up time, so allow some preheat time before your first sessions.
Size and layout
At 48 inches wide and 42 inches deep, the Heathrow fits a corner of a bedroom, home gym or large bathroom. The interior is 43 by 41 inches, which is snug for two adults sitting side by side. The photos show a glass door with angled glass side panels at the front, which keeps it from feeling boxed in. If you're not sure about space, our sauna sizing guide walks through clearances.
Wood
Canadian hemlock is a light-colored, stable wood that's common in indoor infrared saunas and has very little scent. If you'd prefer the aroma of cedar, the Sunray Sierra below is the cedar version of this size. More on wood choices in best wood for a sauna.
Bluetooth, lighting and controls
Built-in Bluetooth lets you play music or podcasts from your phone, and there's a reading lamp plus recessed lights inside and outside. Controls cover temperature, time, lights and heater intensity. Our listing describes dual LED control panels (inside and outside); the data sheet describes an integrated digital keypad.
The oxygen ionizer
The Heathrow includes what Sunray calls an oxygen ionization system, with a ceiling vent for airflow. Sunray says it helps keep the cabin air clean; we haven't seen test data. The EPA notes that ionizers can have the potential to emit ozone, a lung irritant, so it's sensible to switch it off if you notice a sharp smell (EPA guide to air cleaners in the home). Read more in our sauna ionizer guide.
Power and installation
The Heathrow plugs into a standard 120V outlet, with no hardwiring. Sunray's documents disagree on the circuit: our product listing says 120V 15 amp, while the Sunray data sheet says 120V 20 amp. To be safe, plan on a dedicated grounded outlet, have an electrician check whether your circuit is 15 or 20 amp, and don't use an extension cord. Set it on a hard, level floor indoors.
Assembly uses tongue-and-groove panels, and the data sheet says it takes about an hour. Plan on two people.
Pros
- Small footprint (48 x 42 in) for a true 2-person cabin
- Plugs into a 120V outlet, no hardwiring
- Bluetooth audio, reading lamp and interior plus exterior lighting
- 7-year structural warranty
- Quick tongue-and-groove assembly
Cons
- Ceramic heaters only, no carbon panels for wider, more even heat
- No chromotherapy lighting
- Only 1 year on heaters and electronics
- No published EMF figure
- Sunray's documents conflict on amperage and heater type, so confirm before ordering
Alternatives to consider
Product details below come from our live listings; check each product page for current price and availability.
| Feature | Sunray Heathrow | Dynamic Heming | Sunray Sierra |
|---|---|---|---|
| SKU | HL200W | DYN-6225-02 | HL200K |
| Layout | 2-person, angled front | 2-person corner | 2-person |
| Heaters | 5 ceramic, 1,600 W | 7 low EMF carbon panels | 7 carbon nano, 1,665 W |
| Exterior (W x D x H) | 48 x 42 x 75 in | 49 x 50 x 76 in (incl. 2 in clearance) | 48 x 45 x 75 in |
| Wood | Canadian hemlock | Canadian hemlock | Canadian red cedar |
| Electrical | 120V, 15 or 20 amp (see above) | 120V 15 amp, non-GFCI | 120V 15 amp |
| Chromotherapy | No | Yes, plus red light | Yes |
| Warranty | 7 yr structure, 1 yr heaters/electronics | 5 years | See product page |
Dynamic Heming
A 2-person corner sauna in Canadian hemlock with seven low EMF carbon panels (rated 5-10 mG at 2-3 inches), chromotherapy with red light, Bluetooth and FM radio, and bronze tinted glass. Its corner shape suits a room corner rather than a wall. Read our Dynamic Heming review.
Sunray Sierra
The same size class from Sunray in Canadian red cedar, with seven carbon nano heaters and chromotherapy lighting. Pick it over the Heathrow if you want cedar and carbon heat. See the Sunray Sierra.
Who should buy the Sunray Heathrow?
Buy it if you want a compact, plug-in 2-person infrared sauna in light hemlock with Bluetooth and a reading lamp, and you're fine without chromotherapy. Look at the Heming or Sierra instead if you prefer carbon panels, a corner layout or cedar. Browse all our infrared saunas to compare more sizes.
