In addition to its aesthetic quality, Glow also makes for a pleasant sauna experience: with its large amount of stones, soft and pleasantly humid steam is guaranteed. Also the bathers at the lower benches get to enjoy even, caressing warmth. The heater’s exterior leaves plenty of the stones visible, and the briskness of the steam can be tuned by throwing water either straight onto the stone pillar or to the side of the heater.
The sensors, embedded to the inside, guarantee its safe functioning. The assembled stones do not hinder the working of the thermostat, and the heater functions reliably, even after extended use. Glow’s thermostat reacts quickly when the stones cool down, swiftly turning on the heating elements so that the stones are warmed up before the next steam water is thrown.
The tunnel inside the heater speeds up the air circulation while also functioning as support for the heating elements. Erosion of the stones doesn’t weaken the circulation of air. The heat sensor and air circulation, integrated to the tunnel, are inventions by Harvia. They make the heater safer to use.
Electric heater technical details
| Product code |
HTRT904XE |
| Output, kW |
9,0 |
| Sauna room min - max size, m3 |
8 - 14 |
| Measurements (HxWxD),mm |
1076 x 364 x 364 |
| Weight, kg |
13 |
| Stone capacity max, kg |
80 |
| Minimum safety distances (ceiling / sides) |
850 / 100 |
| Supply voltage, phase |
400V 3N |
| Fuse A |
3x16 |
| Connection cable, mm2 |
5x2,5 |
| Control unit |
Equipped |
| Water tank capacity, l |
- |
| Stones |
Stones are not included |
📘 User Manual & Policy Section
👉 Download PDF – User Manual
✅ UK Delivery: 5–10 working days via FedEx (pallet & parcel safe shipping)
✅ Warranty: 3 years factory warranty
✅ Returns: 14-day return for unused items in original packaging
