Pillar Heat, Wrapped in Black Steel.
The Harvia Cilindro PC70E 6.8 kW Black Steel Sauna Heater is a floor-standing pillar heater finished in black steel, rated at 6.8 kW for sauna rooms of 6 to 10 m³. The tall cylindrical body holds up to 90 kg of sauna stones, so the heat is stored in a large stone mass and released as soft, steady warmth rather than a short sharp burst.
The pillar form gives you freedom in how the sauna is laid out. The heater is only 320 mm wide and 320 mm deep but stands 930 mm tall, so it claims very little floor area for the amount of stone it carries. It can be positioned near a wall with the required 100 mm clearances, placed in front of a glass panel where the black steel exterior becomes part of the interior, or embedded into a bench, where the published safety distances still apply.
Key Features
Large Stone Mass
Holds up to 90 kg of sauna stones sized Ø5 to 10 cm, giving soft, long-lasting heat and a generous stone surface for throwing water.
Slim Pillar Footprint
A 320 x 320 mm base and 930 mm height mean the heater fits tight layouts, and it can be embedded into a sauna bench.
Black Steel Finish
The black steel exterior gives the heater a modern, discreet look that suits a wide range of sauna interiors.
Control Unit Required
No controls on the heater: The PC70E is an “E” model. The heater body carries no switches, timer or thermostat, and it cannot be operated on its own.
A separate Harvia control unit is required: A separate Harvia control unit is required and is sold separately. The control units we offer with this heater are shown in the options on this page. The control unit powers the heater and connects to a control panel that gives you control over temperature and on-time. The range of features varies depending on the control unit selected.
Temperature sensor is included: The temperature sensor is supplied in the box with the heater and has a 5 m cable. It is wall-mounted as standard. If the heater is installed more than 100 mm from the wall, the sensor must be mounted on the ceiling instead. The supply air vent must not be positioned so that the airflow cools the sensor.
Not the same as the PC70: The Harvia Cilindro PC70 (item number HPC700400M) is controlled by manual switches. If that is the arrangement you are after, choose that model instead of the PC70E.
Sauna stones: Stones are not included. This heater takes up to 90 kg of sauna stones sized Ø5 to 10 cm, and they are required for correct operation.
At a Glance
- Power output: 6.8 kW
- Sauna room size: 6 to 10 m³
- Stone capacity: 90 kg
- Heater size: 320 x 320 x 930 mm (W x D x H)
- Net weight: 7.7 kg
- Control: Separate Harvia control unit, sold separately
Why This Heater
The PC70E is an “E” model. There are no switches, dial or thermostat on the heater body. It is powered and controlled by a separate Harvia control unit, sold separately, which connects to a control panel for temperature and on-time settings. Depending on the control unit chosen, the available features can include lighting and ventilation adjustment, a week timer, parental control, a PIN code lock, remote switch-on and a door safety switch. The temperature sensor and its 5 m cable are supplied with the heater, along with the fastening kit and the installation and operating instructions.
Wired Three-Phase or Single Phase
The same heater runs on 400 V 3N~ three-phase (3 x 10 A, 5 x 1.5 mm², 30 mm clearance beneath the heater) or on 230 V 1N~ single phase (1 x 35 A, 3 x 6 mm², 50 mm clearance beneath the heater), so it suits properties with either supply.
Matched to 6 to 10 m³ Rooms
The 6.8 kW output is sized for mid-range home sauna rooms with a minimum room height of 1900 mm. That range assumes insulated, panelled walls and ceiling. Add 1.2 m³ to the room volume for every square metre of non-insulated surface such as glass, brick, glass block, concrete or tile, and multiply the volume by 1.5 if the room has log walls. Harvia's own example: a 10 m³ room with a glass door needs the output of about a 12 m³ room, which is past the top of this heater's range.
Full External Control
Pairing the heater with a separate Harvia control unit gives you temperature and on-time control from a control panel, with further functions depending on the control unit you choose.
Easy to Position
The heater weighs 7.7 kg before stones are added, is levelled upright on its adjustable legs, and is then fixed to the sauna structure using the supplied fixing hardware.
Specifications
| Model | PC70E |
|---|---|
| Item Number Harvia | HPCE700400M |
| Type Code | PC70E |
| Electrical Number (STK) | 8266730 |
| Power Output | 6.8 kW |
| Sauna Room Size | 6 to 10 m³ (insulated, panelled walls and ceiling) |
| Minimum Room Height | 1900 mm |
| Stone Capacity | Up to 90 kg (stones sold separately) |
| Stone Size | Ø5 to 10 cm |
| Control Type | Controlled by a separate control unit. A separate Harvia control unit is required and sold separately. |
| Sensor Cable Length | 5 m |
| Installation Location | Floor |
| Installation Orientation | Vertically |
| Colour | Black Steel |
| Main Material | Steel |
| Use Environment | Interior, wet area |
| IP Rating | IPX4 |
| Supply Voltage | 400 V 3N~ (three-phase) or 230 V 1N~ (single phase) |
| Prime Energy | Electric (high voltage 400V/230V 1/3N~) |
| Electrical Frequency | 50/60 Hz |
| Fuses, three-phase (400 V 3N~) | 3 x 10 A |
| Supply Cable, three-phase (400 V 3N~) | 5 x 1.5 mm² |
| Clearance Beneath Heater, three-phase (400 V 3N~) | 30 mm |
|---|---|
| Fuse, single phase (230 V 1N~) | 1 x 35 A |
| Supply Cable, single phase (230 V 1N~) | 3 x 6 mm² |
| Clearance Beneath Heater, single phase (230 V 1N~) | 50 mm |
| Storage Temperature | 0 °C to 50 °C |
| User Group | Households |
| Certificates | CE, EAC |
| Product Width | 320 mm |
| Product Depth | 320 mm |
| Product Height | 930 mm |
| Product Size | 32 cm W x 32 cm D x 93 cm H |
| Net Weight | 7.7 kg (heater only, before stones) |
| Gross Weight | 9.1 kg |
| Package Width | 330 mm |
| Package Height | 975 mm |
| Package Depth | 330 mm |
| Package Size | 33 cm W x 33 cm D x 97.5 cm H |
| GTIN / EAN | 6417659026055 |
| Customs Tariff Number EU | 85162999 |
| Packaging Material | Cardboard |
| Sales Unit | pcs |
Installation and Contents
Safety Distances
- Only one electric heater may be installed in a sauna room.
- Front, combustible and non-combustible materials: 100 mm
- Sides, combustible and non-combustible materials: 100 mm
- Behind, combustible and non-combustible materials: 100 mm
- Ceiling: 950 mm
- Beneath the heater, three-phase (400 V 3N~): 30 mm
- Beneath the heater, single phase (230 V 1N~): 50 mm
- Minimum room height: 1900 mm
- Bench opening for embedded installation (W x D): 520 x 520 mm
The floor under and around the heater must be heat resistant. Hot pieces of stone can damage floor coverings and are a fire risk.
The heater can be embedded into a sauna bench. The safety distances above still apply, including the 520 x 520 mm bench opening.
Always follow the safety distances and installation requirements given in the installation and operating instructions supplied with the heater. Installation and connection, including the choice between the three-phase and single-phase arrangements, must be carried out by a licensed electrician working to that manual and to the current wiring rules.
What's Included
- Harvia Cilindro PC70E Black Steel sauna heater (item number HPCE700400M)
- Temperature sensor with 5 m cable
- Fastening kit
- Installation and operating instructions
Not included: A separate Harvia control unit is required and is sold separately. The control units we offer with this heater are shown in the options on this page. Sauna stones are also required and sold separately. This heater takes up to 90 kg of stones sized Ø5 to 10 cm.
Using and Caring for Your Heater
Piling of the Sauna Stones
Properly arranging sauna heater stones is essential for safe and efficient operation. Follow these guidelines:- Use suitable sauna stone materials such as peridotite, olivine diabase, olivine and vulcanite.
- Only use cleavage surfaces and/or rounded stones on your sauna heater.
- If heating elements come into contact with the stones, use rounded stones only in the outer layers of the stone space.
- Ceramic and decorative stones may only be used if the manufacturer has approved them and they are used according to that manufacturer’s instructions.
- Decorative stones are only suitable on the top layer of the stone space. Place them loosely so air can circulate, and keep them clear of the heating elements.
- Stones should be Ø5 to 10 cm in diameter for this heater.
- Wash off dust from the stones before piling them into the heater.
- Pile a dense layer of stones against the steel grid. This dense layer stops direct heat radiation from overheating the materials around the heater. Take particular care at the corners, where the heating elements sit close to the grid.
- Pile the remaining stones loosely in the middle, so air can flow through the heater and both the room and the stones heat properly.
- When placing the stones, do not drop them into the heater.
- Do not wedge stones between the heating elements.
- Pile the stones so they support each other rather than placing the weight on the heating elements.
- Support the heating elements with stones so that the elements stay vertically straight.
- Avoid forming a high pile of stones on top of the heater.
- Do not place any objects or devices inside or near the heater that could alter the airflow.
- Cover the heating elements completely. A bare heating element can endanger combustible materials even outside the safety distances, so check that no heating elements can be seen behind the stones.
- Do not load more than 90 kg of stones into the heater.
Heater Maintenance
Sauna stones can disintegrate due to temperature fluctuations. Rearrange the stones at least annually, or more often with frequent sauna use. Remove any disintegrated stones from the bottom of the heater and replace them with new ones to maintain optimal heating and prevent overheating. Pay particular attention to the stones settling over time and make sure no heating elements become visible. Stones settle most rapidly within two months of piling, so it is worth checking the stone space again a couple of months after the heater is first filled.Heating Your Sauna with Harvia Sauna Heater
When using the heater for the first time, both the heater and the stones may emit odours. Ventilate the sauna room efficiently to remove them. If the heater output matches the size of the sauna room, a properly insulated sauna will take about an hour to reach the desired bathing temperature. The sauna stones typically reach this temperature at the same time as the sauna room. A suitable temperature for the sauna room is about 65 to 75 °C.A Considered Heater for an Everyday Sauna
Rated IPX4 for interior wet areas, the heater runs at 50/60 Hz and carries CE and EAC certification. Sauna stones are not included and are required for the heater to work correctly.
Get in the Know!
Subscribe to our newsletter and get the latest designs, pricing and updates about wooden saunas & hot tubs.















