🌡️ Harvia Cilindro PC70E 6.8kW Electric Sauna Heater – 6-10 m³ Capacity

Iconic Finnish pillar design with freedom to choose your preferred control system and massive 80 kg stone capacity

📋 Product Overview

The Harvia Cilindro PC70E brings the award-winning pillar heater design to sauna enthusiasts who prefer flexibility in their control system selection. This floor-standing cylindrical heater features the same impressive stone capacity and striking aesthetics as its siblings, whilst allowing you to pair it with your choice of compatible Harvia control units.

Crafted in Finland by Harvia, the global leader in sauna technology, the Cilindro PC70E showcases a distinctive grate-style stainless steel exterior that maximises stone exposure for superior heat radiation and steam production. The generous 80 kg stone capacity ensures rich, customisable löyly – soft steam when water is poured on the sides, sharp and invigorating when cast directly onto the stone pillar.

The “E” designation indicates this model requires a separate control unit, making it ideal for installations where the control panel needs to be positioned away from the heater, or where you wish to upgrade to a specific control system such as the Harvia Xenio, Griffin, or C150. This flexibility is particularly valuable for bench-embedded installations or custom sauna designs where heater controls would otherwise be inaccessible.

Rated for sauna rooms between 6 and 10 cubic metres, the PC70E delivers authentic Finnish bathing performance at an accessible price point for discerning home sauna builders.

✨ Key Features

✅ 6.8 kW Heating Power – Optimally sized for residential sauna rooms 6-10 m³, ensuring rapid heat-up and consistent temperatures

✅ 80 kg Stone Capacity – Substantial stone mass delivers exceptional heat retention and abundant steam for authentic Finnish löyly

✅ Separate Control Unit Required – Choose your preferred Harvia control system (Xenio, Griffin, C150, or compatible alternatives)

✅ Premium Stainless Steel Construction – Corrosion-resistant grate-style exterior designed for decades of reliable service

✅ Floor-Standing Pillar Design – Distinctive cylindrical form creates a stunning visual centrepiece whilst maximising stone exposure

✅ Flexible Control Positioning – Position your control panel anywhere convenient – inside or outside the sauna

✅ Bench Embedding Compatible – Can be integrated into bench seating using optional HPC1 mounting flange

✅ CE Certified – Fully compliant with European safety standards for electric sauna heaters

✅ 2-Year Warranty – Comprehensive Harvia manufacturer warranty for domestic use (1 year commercial)

🔩 Technical Specifications

Specification	Value
Model	PC70E (Cilindro)
Item Number	HPCE700400
Power Rating	6.8 kW
Voltage Options	400V 3N~ / 230V 1N~
Fuse Requirements	3 × 10A (400V 3N~) / 1 × 35A (230V 1N~)
Cable Specification	H07RN-F 5 × 1.5 mm² (400V) / 3 × 6 mm² (230V 1N~)
Room Capacity	6 – 10 m³
Dimensions (W × D × H)	320 × 320 × 930 mm
Weight	10 kg
Stone Capacity	80 kg
Recommended Stone Size	5 – 10 cm diameter
Minimum Room Height	1900 mm
Mounting Type	Floor-standing
Control Panel	Separate unit required (not included)
Certifications	CE
Warranty	2 years (domestic) / 1 year (commercial)
Stones Included	No – sold separately

📏 Room Sizing Guide

Basic Formula:

1 kW = approximately 1 – 1.5 m³ sauna room volume

Adjustment Factors:

Condition	Adjustment
Glass door or windows	Add 1.2 m³ per m² of glass
Uninsulated or log walls	Multiply total volume by 1.5
Outdoor or barrel sauna	Add 25-30% to calculated volume
Ceiling height over 2.3 m	Add extra volume accordingly

Worked Example:

📍 Example Room: 2.2 m × 1.6 m × 2.1 m

• Base volume: 7.39 m³
• Glass door (0.7 m × 2.0 m = 1.4 m²): Add 1.68 m³
• Total calculated volume: 9.07 m³
• This 6.8 kW Cilindro heater: ✅ Suitable (rated for 6-10 m³)

📍 Compact Home Sauna: 1.8 m × 1.5 m × 2.1 m

• Base volume: 5.67 m³
• No glass, well-insulated: No adjustment needed
• Adjusted volume: 5.67 m³
• This 6.8 kW Cilindro heater: ⚠️ Slightly oversized – consider if rapid heating is desired, otherwise a smaller model may suit

⚠️ If your calculated volume exceeds 10 m³, consider the larger 9.0 kW Cilindro PC90E model.

💰 Running Costs

Energy Rate Used: £0.2769/kWh (Ofgem Price Cap Q1 2026 – Direct Debit average)

Cost Calculation:

Usage Level	Sessions/Week	Hours/Year	Annual Cost
🏠 Light Use	2	150	£282
🏠 Regular Use	4	300	£565
🧖 Heavy Use	6	450	£847

Calculation Formula:

Annual Cost = kW × Hours/Year × £0.2769

Example (6.8 kW heater, Regular Use):
6.8 kW × 300 hours × £0.2769 = £565 per year

Per session cost (1.5 hour session):
6.8 kW × 1.5 hours × £0.2769 = £2.82 per session

💡 Energy Saving Tip: The heater cycles on and off to maintain temperature once heated, so actual consumption is typically 60-70% of the rated power during a session.

⚠️ Actual costs depend on usage patterns, session length, room insulation, and current energy rates. Rates shown are Ofgem Price Cap averages for January-March 2026.

🛠️ Installation Requirements

Electrical Requirements:

Requirement	400V 3-Phase	230V Single-Phase
Voltage	400V 3N~	230V 1N~
Fuse Size	3 × 10A	1 × 35A
Cable Type	H07RN-F	H07RN-F
Cable Size	5 × 1.5 mm²	3 × 6 mm²
Dedicated Circuit	Required	Required

Minimum Safety Clearances (from PDF Figure 6):

Position	Distance
Side walls (A)	100 mm
Back wall (B)	100 mm
Ceiling (C)	950 mm
Floor – 3-phase (D)	30 mm
Floor – 1-phase (D)	50 mm
Front clearance (E)	520 mm
Front clearance (F)	520 mm

Ventilation Requirements:

• Fresh air intake: 50-100 mm diameter, positioned above heater (mechanical exhaust) or below/beside heater (gravity exhaust)
• Exhaust vent: Diameter should be twice the intake size, positioned near floor, far from heater
• Air changes: Sauna air should exchange approximately 6 times per hour

Control Unit Installation:

This heater requires a separate control unit (not included). Compatible options include:

• Harvia Xenio (digital touchscreen with WiFi capability)
• Harvia Griffin (digital with colour display)
• Harvia C150 (commercial-grade digital)
• Harvia C90 (basic digital)

Junction Box Requirements:

• Must be splash-proof
• Maximum height from floor: 500 mm

⚠️ IMPORTANT: Installation must be carried out by a qualified electrician in accordance with BS 7671 (IET Wiring Regulations) and local building codes. Use only heat-resistant H07RN-F rubber cables – PVC-insulated cables are prohibited for sauna heater connections. Cables higher than 1000 mm from floor must withstand minimum 170°C.

✅ Safety Features & Certifications

Built-in Safety Systems (from PDF):

✅ Overheat Protection – Automatic thermal cut-out permanently cuts power if temperature becomes dangerously high; can be reset after heater cools (see PDF Section 3.5)

✅ Separate Control Unit Safety – PC70E models controlled from separate control unit for flexible, safe operation

Certifications:

✅ CE Marked – Compliant with European safety directives

Important Safety Warnings (from PDF Section 1.6):

• Keep away from heater when hot – stones and outer surface can burn skin
• Keep children away from the heater
• Do not let young, handicapped or ill persons bathe alone
• Never go to hot sauna under influence of alcohol, strong medicines or narcotics
• Never sleep in a hot sauna
• Do not hang clothes to dry in sauna – fire risk
• Sea air and humid climate may corrode metal surfaces

🏠 Ideal Applications

Application	Room Size	Typical Capacity	Notes
🏠 Home Sauna	6-10 m³	2-4 people	Ideal for residential installations
🛖 Garden Sauna	6-8 m³	2-4 people	Account for additional volume with adjustment factors
🪵 Barrel Sauna	6-8 m³	2-4 people	Apply 1.25-1.3 multiplier for curved walls
🧖 Small Wellness Space	6-10 m³	3-5 people	Pair with commercial-grade control for durability

Particularly Suited For:

• Custom sauna builds where control placement flexibility is essential
• Bench-embedded installations using optional mounting flanges
• Upgrades from existing saunas where a specific control system is already in place
• Budget-conscious projects where control unit can be added separately

♨️ Sauna Stones

Stone Requirements (from PDF Section 1.1):

• Capacity: 80 kg
• Recommended Stone Size: 5-10 cm diameter
• Stones Included: No – sold separately
• Recommended Types: Peridotite, olivine-dolerite, olivine

Important Stone Guidelines (from PDF):

• Use only angular split-face sauna stones intended for heater use
• Do NOT use light, porous ceramic “stones” or soft soapstones – they do not absorb enough heat and may damage heating elements
• Wash off dust from stones before piling into heater
• Pile dense layer against steel grid, rest loosely in centre for airflow
• Do not drop stones into heater or wedge between heating elements
• Support heating elements with stones so they stay vertically straight
• Do not form high pile on top of heater
• Rearrange stones at least once per year; more often with frequent use
• Remove stone pieces from bottom and replace disintegrated stones

⚠️ The guarantee does not cover faults resulting from use of stones not recommended by the heater manufacturer.

⚙️ Compatible Control Units

This heater requires a separate control unit. Recommended options:

Control Unit	Type	Features	WiFi Ready
Harvia Xenio	Digital touchscreen	Temperature 40-110°C, timer 1-12 hours, delay start	Yes (with module)
Harvia Griffin	Digital colour display	Full programmability, multiple user profiles	Yes (with module)
Harvia C150	Commercial digital	Heavy-duty, extended timer options	No
Harvia C90	Basic digital	Simple operation, reliable performance	No

Control Unit Considerations:

• All Harvia control units include temperature sensor with 5 m cable (extendable to 30 m)
• WiFi-enabled models require separate CX001WIFI module for smartphone control via MyHarvia app
• Safety or door switch required for remote start functionality (per IEC/EN 60335-2-53)
• Control panel can be surface-mounted inside or outside the sauna

💬 Frequently Asked Questions

Q: What size sauna room will this heater work for?

A: The Cilindro PC70E 6.8 kW heater is designed for sauna rooms between 6 and 10 m³ (per PDF Table 2). For rooms with non-insulated surfaces (glass, brick, concrete), add 1.2 m³ per m² of non-insulated area. For log walls, multiply volume by 1.5 (per PDF Section 2.3).

Q: Why doesn’t this heater include a control unit?

A: The “E” designation indicates this model is controlled by a separate unit (per PDF Section 1.3), giving you flexibility to choose your preferred Harvia control system. This is ideal for custom installations or bench-embedded setups.

Q: Which control unit should I buy?

A: Compatible options include Harvia Xenio, Griffin, C150, or C90 (per PDF Figure 7). For home use, we recommend the Harvia Xenio for its digital touchscreen and optional WiFi connectivity. Contact Parts4Tubs for personalised advice.

Q: How long does it take to heat up the sauna?

A: Per PDF Section 1.2, a properly insulated sauna with suitable heater output takes about one hour to reach bathing temperature. A suitable sauna room temperature is about 65-75°C.

Q: What electrical supply do I need?

A: Per PDF Figure 7: 400V 3-phase requires 3×10A fuses and 5×1.5mm² cable, or 230V single-phase requires 1×35A fuse and 3×6mm² cable. Professional installation by qualified electrician is mandatory.

Q: Are sauna stones included?

A: No, stones are sold separately. This heater has capacity of 80 kg stones, 5-10 cm diameter (per PDF Table 2 and Section 1.1). Use only peridotite, olivine-dolerite, or olivine stones.

Q: What is the warranty period?

A: Per PDF page 1: 2 years for heaters used in family saunas, 1 year for heaters in public/building saunas. Warranty does not cover faults from improper installation or non-recommended stones.

Q: Can I embed this heater into the sauna bench?

A: Yes, using the optional HPC1 embedding flange (sold separately). See flange installation instructions before cutting hole in bench (per PDF Section 3.2).

📄 Downloads & Resources

📄 Installation & User Manual (EN/FI/SV/DE/RU/ET) – Complete installation guide with wiring diagrams and safety distances

📄 Harvia Electric Heaters Catalogue – Full product range specifications and features

⭐ Why Choose the Harvia Cilindro PC70E

✅ Control System Flexibility – Pair with your preferred Harvia control unit for a customised sauna experience

✅ Authentic Finnish Engineering – Designed and manufactured by Harvia in Finland with over 75 years of sauna expertise

✅ Outstanding Value – Premium pillar heater design at an accessible price point when purchasing control separately

✅ Exceptional Steam Quality – 80 kg stone capacity delivers rich, customisable löyly from soft to sharp

✅ Striking Visual Design – Award-winning cylindrical pillar aesthetic creates a stunning sauna centrepiece

✅ Installation Versatility – Floor-standing or bench-embedded with separate control positioning

🛒 Why Buy From Parts4Tubs

✅ UK-Based Company – Local support from our Northamptonshire headquarters

✅ Expert Advice – Specialist guidance from experienced sauna and hot tub professionals

✅ Fast UK Delivery – Quick dispatch to get your project moving

✅ Competitive Pricing – Fair prices on genuine Harvia equipment

✅ Full Warranty Support – We handle warranty claims directly with Harvia

✅ Complete Solutions – Control units, stones, and accessories all available

🔥 Summary

The Harvia Cilindro PC70E 6.8 kW sauna heater offers the iconic Finnish pillar design with complete freedom to select your preferred control system. Ideal for custom installations, bench-embedded setups, or budget-conscious builds where controls can be added separately, this floor-standing heater delivers exceptional performance for sauna rooms from 6 to 10 m³. With 80 kg stone capacity for authentic löyly, premium stainless steel construction, and CE certification, the PC70E brings professional-grade quality to your home sauna project. Backed by Harvia’s 2-year warranty (1 year commercial) and Parts4Tubs’ expert UK support, order today for fast delivery.