Bestway Pool Heater Running Cost Calculator

At the Ofgem Direct Debit price cap average of 26.11p/kWh, a 2.8kW Bestway heater costs approximately 73p per hour to run. A 2.5kW model costs approximately 65p per hour, and a 4kW model costs approximately £1.04 per hour, at the same electricity price.

It depends on your pool's volume, your heater's power rating, and how many degrees you want to raise the temperature by. As a rough estimate, a 2.8kW heater raising a 6,000-litre pool by 10°C takes around 25 hours of running time; a larger pool or bigger temperature rise takes proportionally longer.

Multiply the estimated hours to heat by the cost per hour, or use the calculator above, which does this automatically. For example, heating a 6,000-litre pool by 10°C with a 2.8kW heater costs approximately £18 in total.

Check the rating plate or box for the wattage in kW (commonly 2.5kW, 2.8kW, or 4kW for Bestway's electric pool heater range). If unsure, select Custom in the calculator and enter your model's exact wattage.

A bigger heater costs more per hour of operation, but it heats the pool faster, so the total cost to reach a given temperature rise can be similar to a smaller heater, since it needs to run for less time.

This calculator's heating-time estimate assumes near-100% efficiency and ignores ongoing heat loss to the surrounding air, ground, and evaporation while the heater runs. Real-world heating is often somewhat slower.

Yes, significantly. A pool cover reduces heat loss from evaporation, typically the largest source of heat loss from an outdoor pool, meaningfully reducing how long the heater needs to run.

For an above-ground pool without a cover, heat is lost continuously, so a few hours a day may not reach or hold your target temperature. Running during the warmest part of the day plus an overnight cover often balances cost and comfort.

Yes. Bestway electric pool heaters connect in line with the pool's filter pump and require water to be circulating through them to heat safely and effectively.

That depends on your budget, climate, and how much guaranteed heating you need. Electric heaters give reliable, controllable heating regardless of sunlight, while solar options have no running cost but heat less predictably.

The physics-based formulas apply to any electric pool heater if you enter its correct wattage using the Custom option, but the preset options are based on common Bestway models specifically.

Enter the difference between your pool's current water temperature and your target swimming temperature. For example, 15°C to 25°C is a 10°C rise.

Yes, indirectly. A higher electricity price does not change how long heating takes, but it does increase the cost of that time, so some owners run fewer hours a day during high price periods.

Cost per hour is the ongoing cost of running the heater. Total cost to heat is the one-off cost of reaching your target temperature rise, a different, larger figure since it depends on how long that will take.