How do you calculate how much power your radiator needs?
Je berekent het vermogen door:
Stap 1. Doe de lengte x breedte x hoogte van je ruimte en daar komt een getal in m3 uit.
Stap 2. Check het benodigde aantal watt per m3 voor de ruimte.
Stap 3. Vermenigvuldig de inhoud in m3 met dit aantal watt.
Stap 4. Een correctiefactor? Tel deze op of trek deze af van het totale wattage.
Stap 5. Je hebt nu het benodigde vermogen in aantal watt voor je nieuwe radiator.
inhoud in m3 x benodigde aantal watt per m3 = x aantal watt plus of min correctiefactor in % = benodigde vermogen in aantal watt.
Step 1. The size of the room you want to heat in m3
The larger the room you want to heat, the more power you need. That is not higher mathematics. You calculate the size of the room by taking a ruler and doing length x width x height in meters.
Step 2. and 3. The desired room temperature
The recommended room temperature in a certain room is a general given. We agree that the rule of thumb below is correct for when you want it warm in the space concerned.
|Room||Recommended temperature||Required number of watts per m3|
|Bathroom||24 degrees||93 watts|
|Living room||22 degrees||85 watts|
|Study||22 degrees||85 watts|
|Kitchen||20 degrees||77 watts|
|Bedroom||18 degrees||70 watts|
Step 4. To what extent your house is isolated and other correction factors
Every house is different. You have new houses that are well insulated or old houses filled with cracks and cracks in the insulation layer. This affects how much power you need to get it warm in a room. Corner and detached houses require more capacity. The same applies when you heat higher than the recommended temperature in a room, this often happens in retirement homes. Keep the correction factors in the table.
|Correction factor||Percentage correction|
|2 ° C higher temperature||+ 10%|
|Well insulated walls||-10%|
|Poor wall insulation||+ 15%|
|Corner and detached house||+ 10%|
You have a bedroom of 20m3 where you want to mount a radiator. How much power do you need to get a pleasant temperature in your bedroom?
Step 1. Do lx bxh of your space and there comes a number in m3. * \ NWe are talking about a space of 20m3.
Step 2. Check the required number of watts per m3 for the room. *
Step 3. Multiply the content in m3 by this number of watts. * A bedroom has a recommended temperature of 24 degrees and a required number of watts per m3 of 70 watts. Wired wattage = 20 x 70 watts = 1400 watts.
Step 4. A correction factor? Add or subtract this from the total wattage. * You live in a new apartment with well insulated walls. Correction factor is therefore -10% of the total number of watts. 1400 watt - 10% = 1260 watt
Step 5. You now have the power required in watt for your new radiator. Time to find a nice one. *