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Sauna maintenance in cold season

1. Check the stove before the season

Whether you use an electric or wood-fired stove, make sure it is cleaned and in perfect working condition.

  • Completely clean the remaining ash
  • Check the chimney or flue for deposits
  • Inspect the volcanic stones – cracked ones must be replaced

Recommendation: use only dry, hard wood (e.g. birch, beech) for efficient and clean burning.

2. Ventilate the sauna after each use

  • Leave the door and any windows open for 15–30 minutes
  • Do not cover the ventilation grilles

3. Protect the exterior wood

  • Apply 1–2 coats of special exterior oil (e.g. Tikkurila, Njord Protect)
  • Avoid snow accumulation on the sauna roof
  • Periodically clean exposed surfaces with a damp cloth

4. Check insulation and sealing

  • The door closure must be sealed – you can adjust the hinges
  • Apply heat-resistant silicone in corners with leaks
  • Check the roof and walls for signs of moisture

5. Heat correctly, not suddenly

  • Electric stove: set the temperature gradually
  • Wood stove: light the fire 30–45 minutes before
  • Do not force the stove with too much wood at once

Conclusion: Proper maintenance means better thermal comfort and increased lifespan of your sauna.

Source: SaunaTimes – Seasonal Sauna Maintenance

Hot tub maintenance: water, wood and stove

A well-maintained hot tub offers not only relaxation, but also safety and long-term comfort. Whether you have a wood-fired or electric model, proper maintenance of water, structure and stove is essential.

1. Water – clean, safe, balanced

  • Change the water completely every 1–2 weeks
  • Use filtration systems and check them periodically
  • Test and balance pH and alkalinity:
    • pH: 7.2 – 7.8
    • Alkalinity: 80–120 ppm

You can use active oxygen tablets or natural products for light disinfection.

2. Wood – protected and well maintained

  • Clean surfaces with a soft cloth and warm water
  • Apply special oils once every 6–12 months
  • Use a thermal insulation cover for protection

3. Stove – efficiency and safety

For wood stoves:

  • Empty the ash after each use
  • Clean the glass door and check the seal
  • Inspect the chimney for deposits

For electric stoves:

  • Check the control panel and outlets
  • Make sure the control unit is protected from moisture

4. General hygiene – monthly maintenance

  • Clean the inside of the tub with a soft brush
  • Wash headrests and accessories
  • Ventilate the hot tub well after use
  • Avoid lotions and body oils

Quick monthly checklist

ElementFrequencyWhat needs to be done
Water1–2 weeksComplete change and pH testing
FilterweekRinse/check
Exterior wood3–6 monthsOil/cleaning
Stoveafter useAsh cleaning / check
Acrylic interior2 weeksDelicate cleaning with dedicated products

Source: SaunaTimes – Hot Tub Maintenance Tips

User guide - Responsible relaxation

North Heat offers more than products – we offer complete solutions:
  • Choosing the right model based on space, style and budget
  • Detailed guides for maintenance, safety and use
  • Fast technical support, spare parts and useful tips
  • Choosing the right sauna or hot tub can seem overwhelming. Our guide will help you make the best choice for your needs.
  1. „Alegerea saunei sau hot tub-ului potrivit poate părea copleșitoare. Ghidul nostru vă va ajuta să faceți cea mai bună alegere pentru nevoile dumneavoastră."
  2. How to choose the right sauna or hot tub
  3. Product maintenance
  4. Safety and safe use
  5. Educational content: Create articles or videos explaining how to choose the right sauna or hot tub, maintenance tips, and safety precautions.
  6. Frequently asked questions: A frequently asked questions section to address common inquiries related to installation, usage, and warranties.

Product maintenance

For the longest lifespan and always pleasant experience, follow these simple recommendations:

Saunas

  • Ventilate the sauna after each use
  • Clean benches and walls with a damp cloth (without abrasive products)
  • Periodically check the condition of the stove and stones
  • Do not use scented chemical products directly on wood – use only specially designed natural essences

Hot tubs

  • Change water regularly, depending on frequency of use (ideal: 1–2 weeks)
  • Clean the interior with a soft brush and dedicated solutions
  • Check the stove condition and remove ash after each use
  • Use a cover to prevent accumulation of dirt or leaves

Safety and safe use

Your safety and that of your loved ones is a priority. Here are some important rules and tips:

Before use

  • Make sure the (wood) stove is properly ventilated
  • Never leave a lit stove unattended
  • Check water temperature (ideal: 35–37°C for hot tub, 70–90°C for sauna)
  • Do not overload the sauna or hot tub – respect maximum capacity

Children and sensitive persons

  • Children under 12 can use the sauna or hot tub only under strict adult supervision
  • Avoid use during pregnancy or in case of cardiovascular problems, without medical advice

Personal hygiene

  • Showering before entry is recommended – reduces impurities in water and protects materials
  • Avoid using lotions or body oils inside the sauna or hot tub

Other precautions

  • Do not consume alcohol before or during use
  • Exit immediately if you feel dizzy, weak or uncomfortable
  • Make sure the sauna is installed on a solid, heat-resistant base