Kitchen flood - drying out costs

whitesatin

We had an extensive flood in our kitchen, it's dragging on a bit but has involved the use of a company, through insurance, who are using drying machines (dehumidifier?). This is likely to continue when they finally take the floor up to dry out the joists. I remember the man took an electricity meter reading the day he set the first machine up. I expect there will be a couple more weeks of more machines going full time but I wonder how they can calculate the extra costs to us by running these. How can they differentiate between the extra costs and what we would have used anyway. I'm guessing maybe they will look at the equivalent charges from last year?

forgotmyname

Because the machines will have a wattage rating same as most appliances in your home.

1 watt = approx £1 a year if left on 24/7 365. £1 per watt is a rough guide depending on your actual costs. But it wont be far off.

So a 1000watt dehumidifier will cost £1000 a year or £2.74 a day if run 24/7 at full power.

FutureGirl

The company will know how many kWh each dehumidifier uses. It's likely they're telling you to leave them on 24/7, so they can calculate the amount of kWh used. They may ask to see your bill to see the £ per kWh.