Electric vs wood burning sauna
Choosing between an electric and a wood burning sauna heater is one of the most important decisions a UK buyer will make. At Gravity Wellness, every sauna we build is handcrafted from sustainably sourced Canadian hemlock and delivered across mainland England, Scotland and Wales, so we understand exactly what each heater type demands in a real British home or garden setting.
How each sauna heater type works
An electric sauna heater uses a resistive heating element to warm a bed of sauna stones, raising cabin temperatures to between 70 and 100 degrees Celsius within 30 to 45 minutes. The heater draws power directly from your mains supply and is controlled by a digital or analogue thermostat. All Gravity Wellness electric saunas operate at a maximum of 2000W, meaning they are fully compatible with a standard UK 13-amp socket and require no specialist rewiring or additional consumer unit work. This makes the electric sauna heater the most straightforward sauna heater type in the UK for residential installation, whether the cabin is positioned indoors or in a garden building.
A wood burning sauna, by contrast, uses a dedicated log-burning stove — known in Finnish tradition as a kiuas — to heat the cabin. Hardwood logs, typically birch or oak, are burned inside a cast-iron or steel firebox and the radiant heat transfers through the stove body and a large stone load resting on top. Temperatures can exceed 100 degrees Celsius and the process of feeding the fire, monitoring airflow and managing the burn creates a deeply ceremonial experience that many sauna enthusiasts regard as the authentic Nordic method. Smoke is vented through a purpose-built flue that must exit the roof or wall of the structure, which adds meaningful complexity to the build and planning process. Browse our full range of handcrafted saunas to see which heater configuration suits your space.
Installation, planning and practical considerations in the UK
For most UK homeowners, the electric sauna heater represents the path of least resistance when it comes to installation. Because Gravity Wellness electric saunas draw no more than 2000W, they can be plugged into any standard 13-amp socket without the need for a dedicated circuit, a Part P electrical notification or an electrician beyond the basic connection. The cabin itself simply needs to be positioned on a level, load-bearing surface with access to a nearby socket. Indoor installations in a spare bedroom, utility room or garden studio are all viable, and our team can advise on ventilation requirements when you get in touch via health@gravitywellness.co.uk. The approximately 60-day build and delivery window means you can plan your installation date well in advance.
Wood burning saunas introduce a significantly greater installation burden. The flue system must be professionally specified and installed to comply with Building Regulations Part J (combustion appliances), and in many cases a HETAS-registered engineer will be required to sign off the work. If the sauna is to be positioned in the garden, permitted development rights must be checked against local authority guidance, and any structure with a fixed combustion appliance may require full planning permission rather than simply permitted development. Chimneys must clear roof ridgelines by specified distances to prevent downdraught, and hearths must meet minimum mass and dimension requirements. These are not insurmountable challenges, but they are real ones that buyers should factor into their budget and timeline before committing. Our outdoor sauna range includes models well suited to both heater types for garden installations.
Running costs, maintenance and the Gravity Wellness approach
Running costs differ meaningfully between the two heater types and the gap is heavily influenced by local energy and fuel prices. An electric sauna heater rated at 2000W costs approximately 60 pence per hour to operate at the October 2024 Ofgem price cap unit rate of around 24.5 pence per kWh. A one-hour session therefore costs roughly the same as a large cup of coffee. Wood burning saunas depend on the price and quality of the fuel: a cubic metre of kiln-dried hardwood logs costs between 120 and 180 pounds in the UK, and a single session may consume three to five kilograms of wood. Across a full year of regular use, the operating costs of both types are broadly comparable for most households, though electric saunas offer far greater predictability and are unaffected by seasonal log price fluctuations. At Gravity Wellness, registered under York House Group (Company No. 15903905) at Meadow House, Long Bennington Business Park, Newark, NG23 5JR, we build every sauna to order using PEFC-certified Canadian hemlock, a timber chosen for its natural antimicrobial properties and dimensional stability in the humid conditions inside a sauna cabin. If you are considering a solo session model, our traditional one-person sauna is an excellent starting point.
Maintenance requirements also diverge between the two heater types. An electric heater requires almost no routine upkeep beyond an occasional wipe of the stone bed and a periodic inspection of the element and wiring connections. Wood burning stoves require the flue to be swept at least once a year by a qualified chimney sweep, the firebox grate and baffle plates need inspecting for warping or cracking, and the door rope seal and glass must be checked regularly. Ash must be cleared after every session and stored safely before disposal. Neither maintenance regime is onerous for a committed sauna user, but the electric option is considerably lower effort and better suited to the spontaneous, after-work session that most UK buyers are looking for. Our two-person traditional sauna is our most popular electric model for couples and households seeking exactly that kind of effortless regular use.
The sensory experience and health outcomes of each heater type
The sensory experience of a wood burning sauna is genuinely distinct from its electric counterpart and for many enthusiasts it is the primary reason to choose one. The crackle and scent of burning birch logs, the gradual build of heat as the fire matures, and the almost meditative process of tending the stove all contribute to an experience that feels deeply rooted in Finnish sauna tradition. The loyly — the steam produced when water is thrown onto the hot stones — tends to feel softer and more enveloping in a wood burning cabin because the stone mass is larger and retains heat more evenly over a longer period. For buyers seeking that authentic, ritualistic dimension, a wood burning sauna is hard to rival and our four-person traditional sauna is an outstanding platform for that experience when shared with family or guests.
Electric saunas deliver equally well-documented health benefits including improved cardiovascular circulation, reduced muscle soreness, lower cortisol levels and enhanced sleep quality, all documented in peer-reviewed research conducted at institutions including the University of Eastern Finland. The heat produced by a quality electric heater is consistent, controllable and repeatable, which actually makes it easier for users to build a structured wellness habit. For households new to sauna bathing, the ability to set an exact temperature, walk away and return to a fully heated cabin 30 to 45 minutes later removes all barriers to regular use. Those interested in a different heat modality can also explore our infrared sauna options, which operate at lower ambient temperatures and offer their own distinct physiological benefits. Whichever heater type you choose, the sustainably sourced Canadian hemlock in every Gravity Wellness cabin creates an environment that is naturally antimicrobial, pleasantly aromatic and built to last for decades.
Frequently Asked Questions
What is the fundamental difference between these two sauna types?
The fundamental difference lies in the heat source. An electric sauna heater uses a resistive element powered by mains electricity to warm sauna stones to temperatures between 70 and 100 degrees Celsius, while a wood burning sauna uses a log-burning kiuas stove and an open flame. Electric heaters offer precise digital temperature control and heat up in around 30 to 45 minutes. Wood burning stoves take longer to reach temperature but produce a larger stone mass that retains heat exceptionally well throughout a session.
Which type delivers better health benefits?
Both heater types deliver equivalent core health benefits when the cabin reaches the correct temperature range. Research published by the University of Eastern Finland found that four to seven sauna sessions per week were associated with a 40 percent reduction in all-cause cardiovascular mortality over a 20-year follow-up period. Those outcomes are linked to heat exposure, not the heat source. Electric saunas make it easier to achieve consistent, frequent sessions because they require no fire preparation, which may give them a practical health advantage for most UK households.
Which is easier to install in a UK home or garden?
Electric saunas are considerably easier to install in a UK setting. Gravity Wellness electric models draw a maximum of 2000W and connect to a standard 13-amp socket, so no electrician or Part P notification is required for the heater itself. Wood burning saunas require a purpose-built flue system that must comply with Building Regulations Part J, typically installed by a HETAS-registered engineer. In a garden setting, a fixed combustion appliance may also trigger planning permission requirements rather than falling within permitted development rights, adding meaningful time and cost to the project.
Which sauna type costs more to run day to day?
At the October 2024 Ofgem price cap unit rate of approximately 24.5 pence per kWh, a 2000W electric sauna heater costs around 49 pence per hour to run. A one-hour wood burning session consumes roughly three to five kilograms of hardwood logs, which equates to between 36 and 60 pence at current kiln-dried log prices, making the two broadly comparable. However, log prices fluctuate seasonally and delivery charges apply in most regions, so the electric option offers greater cost predictability across a full year of regular use.
Which sauna type does Gravity Wellness recommend for first-time buyers?
For first-time buyers in the UK, Gravity Wellness recommends an electric sauna. The ability to simply switch on a heater, set a temperature and step into a fully warmed cabin 30 to 45 minutes later removes every practical barrier to building a regular sauna habit. Our electric models operate at a maximum of 2000W on a standard UK socket, require no specialist installation and are backed by a approximately 60-day build and delivery window from our workshop. Once you are comfortable with sauna bathing as a routine, upgrading to or adding a wood burning model is always an option.
Can I order both types from Gravity Wellness?
Yes. Gravity Wellness, the trading name of York House Group (Company No. 15903905), handcrafts saunas to order from PEFC-certified Canadian hemlock and delivers to mainland England, Scotland and Wales. Our range includes traditional saunas compatible with electric heaters across one-person, two-person and four-person configurations, as well as outdoor models and infrared options. Every sauna is built fresh to your order with an approximately 60-day lead time. Contact us at health@gravitywellness.co.uk to discuss the heater configuration that best suits your space, budget and wellness goals.
Related Pages
Explore the full range of handcrafted traditional, infrared and outdoor saunas built from sustainably sourced Canadian hemlock.
Discover garden sauna cabins built to withstand the UK climate, available with electric or wood burning heater configurations.
A compact one-person traditional sauna handcrafted from Canadian hemlock and ready to connect to a standard UK socket.
Our most popular model for couples and households, combining generous bench space with a 2000W electric heater on a standard plug.
Ready to choose your perfect handmade sauna today
Every Gravity Wellness sauna is built entirely by hand from sustainably sourced Canadian hemlock and delivered free to mainland England, Scotland and Wales with an approximately 60-day lead time. Whether you prefer the effortless convenience of an electric heater or the ceremonial warmth of a wood burning stove, we can build the right cabin for your home or garden. Contact our team at health@gravitywellness.co.uk or browse the full range to find your ideal model.