Approximate litres in steel panels and copper Table X pipe. Use Add to totals to send each answer into the sum at the bottom, then use that figure for expansion-vessel size and inhibitor dose.
Center radiators
Wolseley CenterRad style compact panels. Select type and height, then length, for litres in one radiator.
300
Water Content
0.84
Litres (L)
Ultraheat Compact 4
Select type and height, then length, for approximate litres in one Ultraheat Compact 4 panel.
200
Water Content
0.52
Litres (L)
Pipework
Copper tube (Table X) water content. Enter metres of 15 mm, 22 mm and 28 mm, then add each size — or the pipework total — into the sum.
0.0
0.00 L
0.0
0.00 L
0.0
0.00 L
Pipework Total
0.00
Litres (L)
Sum totals
Each Add to totals click fills the next empty slot and a small name. Edit the name if you like, or type one yourself. Use the × to drop a line from the sum. Use the total for buffers, expansion vessel sizing, and inhibitor dosing.
Answer: Water Content
0.00
Litres (L)
Important: Panel figures are approximate litres per metre of that type and height, taken from the original Hub calculator (CenterRad and Ultraheat Compact 4). Pipe figures are copper Table X: 0.1416 L/m (15 mm), 0.3140 L/m (22 mm), 0.5308 L/m (28 mm). Manufacturer data can differ. Always check the radiator schedule and a Gas Safe engineer’s survey before dosing or sizing a vessel.
