H1: Electric Hot Tub – The Complete Guide for 2025
An electric hot tub stands for convenience, comfort and a constant temperature.
In this guide, you will learn everything about energy usage, costs, operation, and the pros and cons.
An electric hot tub uses a 3kW–6kW boiler or heater to warm the water.
It works much like a household electric boiler: stable, quiet and automatic.
Ideal for:
Homeowners
B&Bs
Groups who want convenience
Small gardens
Luxury accommodations
3kW heater = ± 6–8 hours
6kW heater = ± 3–4 hours
(Exact heating times depend on outside temperature and water volume.)
An electric boiler keeps the water automatically at 37–39°C.
An electric hot tub uses 0.7–1.4 kWh per hour to stay hot.
No fire → no hassle.
Always warm when you want it.
Guests don’t need to heat it themselves → lower risk.
Electric boilers are highly accurate.
Almost no sound during heating.
Requires a good electrical connection
Heating takes longer than wood-fired
Higher monthly costs than wood
| Theme | Electric | Wood-Fired |
|---|---|---|
| Use | Most comfortable | Pure experience |
| Heating | 3–8 hours | 1.5–2.5 hours |
| Monthly cost | Higher | Lower |
| Suitable for | Rentals & convenience | Nature & experience |
| Installation | Requires power | No electricity needed |
Average electric hot tub costs:
Per session: €2 – €5
Per month (1–2x per week): €20 – €45
Heavy use: €50 – €80
Important:
A well-insulated cover cuts consumption in half.
All Malu electric hot tubs include:
High-quality electric heater
Quiet pump & filtration system
Fiberglass tub
Comfortable seating depth
LED lighting
Optional jets
Do I need a high-power electrical connection?
For 6kW heaters: yes.
For 3kW heaters: often not.
Can I leave an electric hot tub outside?
Yes, all components are weather- and IP-rated.
How often should I replace the water?
With filter: every 6–8 weeks.
Want to know whether electric or wood-fired suits you best?
Request personalised advice.
H1: What Does a Hot Tub Cost Per Month? (2025 Examples)
Monthly hot tub costs depend on:
Heating type (electric or wood-fired)
Usage frequency
Insulation
Water quality
Filter pump & accessories
This guide gives you an honest cost calculation.
Average: 25–35 kg per heating
Cost per session: €6 – €12
1x per week: €24 – €48
2x per week: €48 – €96
Water: €3–€5 per refill
Maintenance: €5 per month
3kW → 3–8 hrs → €3–€6 per heating
6kW → 1.5–3 hrs → €2–€4 per heating
0.7–1.4 kWh per hour
Cost: €0.25 – €0.50 per hour
Light use: €20 – €40
Medium use: €45 – €75
Heavy use: €80 – €120
A premium cover saves up to 40% electricity.
An insulated tub reduces up to 25% heat loss.
Malu hot tubs include:
Insulated fiberglass tub
Optional premium insulated cover
1,100–1,500 litres
Cost: €3–€6 per refill
Water quality products: €5–€10 per month
Filter pump (electric): €1–€3 per month
| Hot tub type | Low use | Medium | Intensive |
|---|---|---|---|
| Wood-fired | €25–€50 | €50–€90 | €90+ |
| Electric | €20–€40 | €40–€75 | €75–€120 |
A hottub typically adds €20–€40 per night to the rental value.
This means:
? Monthly costs often become €0, as guests earn it back for you.
Want personalised cost calculation?
Request a free quote or tailored advice.