Electric underfloor heating running cost calculator
Use our calculator below to find out the potential cost of running a ThermoSphere electric underfloor heating system in your home.
Fill in the calculator to calculate your underfloor heating running costs.
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Representative example for ThermoSphere 150W Mesh underfloor heating
Representative running costs for a ThermoSphere 150W/m2 mesh system used as a primary heat source in a well-insulated environment.
| Area | 1m2 | 2m2 | 4m2 | 5m2 | 10m2 | 15m2 | 25m2 |
|---|---|---|---|---|---|---|---|
| 1 Hour | 2.1p | 4.2p | 8.4p | 10.5p | 21.1p | 31.6p | 52.7p |
| 2 Hours | 4.2p | 8.4p | 17p | 21p | 42.2p | 63.2p | 105.4p |
| 3 Hours | 6.3p | 12.6p | 25.3p | 31.6p | 63.2p | 94.8p | 158.1p |
| 4 Hours | 8.4p | 17p | 33.7p | 42.2p | 84.3p | 126.5p | 210.8p |
| 5 Hours | 10.5p | 21p | 42.2p | 52.7p | 105.4p | 158.1p | 263.4p |
| 6 Hours | 12.6p | 25.3p | 50.6p | 63.2p | 126.5p | 189.7p | 316.1p |
| 7 Hours | 14.8p | 29.5p | 59p | 73.8p | 147.5p | 221.3p | 367p |
| 8 Hours | 16.9p | 33.7p | 67.4p | 84.3p | 168.6p | 253p | 421p |
This approximation does not imply any warranty or guarantee of energy consumption and/or electricity costs.
The following reasonable assumptions have been made to calculate these approximate daily running costs:
System is installed as a primary heat source in a well-insulated dwelling, built to current Part L regulations.
150W/m2 system under a 10mm ceramic tile on 10mm Insulation Board
Energy price of 14.05p/kWh (average UK price at time of printing)
The system is controlled by an intelligent programmable thermostat with floor sensor
Floor temperatures set at 24 degrees Celsius.
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