Oh, and guess which way supplies the 9.6kW electric shower?
Z.
Originally the bottom half of the fuse board was the off-peak with two fuse ways.
The house had warm air heating with a single huge storage heater positioned centrally with the warm air ducts running out of it.
This was replaced with three storage heaters hence the second fuse board, but the original still supplies the immersion heater.
Being on a E11 tariff a single immersion heater os enough, because there's a daytime boost. That tariff is no longer available to new customers and if they moved off it they would possibly need a new hot water cylinder or at least some controls on the existing to make it dual-tariff.
It's not dangerous, but it's of its time with lots of potential issues.
Originally the bottom half of the fuse board was the off-peak with two fuse ways.
The house had warm air heating with a single huge storage heater positioned centrally with the warm air ducts running out of it.
This was replaced with three storage heaters hence the second fuse board, but the original still supplies the immersion heater.
Being on a E11 tariff a single immersion heater os enough, because there's a daytime boost. That tariff is no longer available to new customers and if they moved off it they would possibly need a new hot water cylinder or at least some controls on the existing to make it dual-tariff.
It's not dangerous, but it's of its time with lots of potential issues.