Plumbing

Drain fall calculator

Example: Drop: 300 mm over the run (1 in 40, 2.50%)

Hot water cylinder size calculator

Example: Cylinder: 210 litres, about 4.1 h to heat from cold (indicative)

Water flow rate calculator

Example: Flow rate: 16.0 L/min

Expansion vessel size calculator

Example: Vessel: at least 6.77 L (indicative)

Guttering and downpipe calculator

Example: Rainwater flow: 1.26 L/s from 60.0 m² of effective roof

Pipe size and velocity calculator

Example: Velocity: 1.38 m/s

Rainwater harvesting tank calculator

Example: Tank: 1,620 L

Water pressure from height calculator

Example: 10.00 m of head = 0.981 bar (static)

Heating upgrade estimator

Plan a heating upgrade: room heat loss, radiator sizes, boiler or heat pump size, cylinder and expansion vessel in one place.

Heating