Calculate Your Heater Size

Use this calculator to quickly estimate the heating requirements for a single room. Please be aware that calculating heat loss is complex, and there are many variables that can affect the final result

Need a quote for multiple rooms or some expert assistance? Let our team calculate the exact requirements for your home and provide a comprehensive quote and heating plan. Click here to get started with an online quote.

Enter the length and width of your room in metres, or click Enter Room Area Manually to enter the total area of your room in square metres.
Use the diagram below to estimate the total size of the windows in your room. Include any glass sliding doors in your measurements. Alternatively, click Enter Window Area Manually to enter the total size of your windows in square metres for the most accurate calculation.
You can enter the number of external walls in your room, or enter the total length of your external walls for a more accurate calculation. What is an external wall?
External walls are any that connect to the outside or a cold space such as a garage. If you share a wall with a neighbour, this does not count as an external wall.
Enter the total number of standard external doors (if any). If you have glass sliding doors, include these in your window measurements instead.
Select which description best describes the insulation in your room for each interior surface. If you know the exact insulation value (often found in home energy efficiency reports), enter it into the column on the right.
Wattage:
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
2000W / H500 x L1250 / Double
Preorder
Estimated arrival 11/05/24
$1,680
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
250W / H300 x L400 / Single
In Stock
$663
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
500W / H300 x L800 / Single
Preorder
Estimated arrival 25/03/24
$980
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
750W / H300 x L1100 / Single
In Stock
$1,100
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1000W / H300 x L1500 / Single
In Stock
$1,210
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
500W / H500 x L550 / Single
In Stock
$980
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
750W / H500 x L800 / Single
In Stock
$1,100
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1000W / H500 x L1050 / Single
In Stock
$1,210
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1250W / H500 x L1300 / Single
Preorder
Estimated arrival 15/06/24
$1,320
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
500W / H300 x L500 / Double
Preorder
Estimated arrival 20/02/24
$980
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
750W / H300 x L800 / Double
Preorder
Estimated arrival 11/05/24
$1,100
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1000W / H300 x L1000 / Double
Preorder
Estimated arrival 11/05/24
$1,210
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1250W / H300 x L1300 / Double
Preorder
Estimated arrival 15/06/24
$1,320
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1500W / H300 x L1600 / Double
Preorder
Estimated arrival 11/05/24
$1,470
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
2000W / H300 x L2000 / Double
Preorder
Estimated arrival 11/05/24
$1,680
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
500W / H500 x L400 / Double
In Stock
$980
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
750W / H500 x L500 / Double
Preorder
Estimated arrival 11/05/24
$1,100
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1000W / H500 x L650 / Double
Preorder
Estimated arrival 11/05/24
$1,210
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1250W / H500 x L800 / Double
Preorder
Estimated arrival 11/05/24
$1,320
Yali Plus Oil-Filled Electric Radiator
Yali Plus Oil-Filled Electric Radiator
1500W / H500 x L950 / Double
Preorder
Estimated arrival 11/05/24
$1,470
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
2000W / H500 x L1250 / Double
Preorder
Estimated arrival 11/05/24
$1,870
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
250W / H300 x L400 / Single
Preorder
Contact us for estimated arrival date
$930
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
500W / H300 x L800 / Single
Preorder
Contact us for estimated arrival date
$875.50
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
750W / H300 x L1100 / Single
In Stock
$1,230
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1000W / H300 x L1500 / Single
In Stock
$1,079.50
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
500W / H500 x L550 / Single
Preorder
Contact us for estimated arrival date
$1,100
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
750W / H500 x L800 / Single
Preorder
Contact us for estimated arrival date
$1,230
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1000W / H500 x L1050 / Single
Preorder
Contact us for estimated arrival date
$1,360
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1250W / H500 x L1300 / Single
Preorder
Contact us for estimated arrival date
$1,480
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
500W / H300 x L500 / Double
In Stock
$1,100
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
750W / H300 x L800 / Double
Preorder
Contact us for estimated arrival date
$977.50
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1000W / H300 x L1000 / Double
Preorder
Contact us for estimated arrival date
$1,079.50
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1250W / H300 x L1300 / Double
Preorder
Contact us for estimated arrival date
$1,173
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1500W / H300 x L1600 / Double
Preorder
Contact us for estimated arrival date
$1,650
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
2000W / H300 x L2000 / Double
In Stock
$1,870
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
500W / H500 x L400 / Double
In Stock
$1,100
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
750W / H500 x L500 / Double
Preorder
Estimated arrival 11/05/24
$1,230
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1000W / H500 x L650 / Double
Preorder
Estimated arrival 15/06/24
$1,360
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1250W / H500 x L800 / Double
In Stock
$1,480
Parada Plus Oil-Filled Electric Radiator
Parada Plus Oil-Filled Electric Radiator
1500W / H500 x L950 / Double
In Stock
$1,650