insulating water heater

[Sam]

hi there.i have a 100L electric water heater (similar to

in my yard which i was thinking of insulating by wrapping it in fibreglass wool insulation and spraying evo-stick foam in the gaps. the idea is to cut down on heat losses.

then i started thinking....does the majority of heat escape through the walls which i will be trying to insulate? or does it escape through the hot water piping which i cant really stop happening?

Sam

[Christian McArdle]

The majority goes through the walls. However, a significant amount will be lost through the pipes, which should be lagged (insulated) for some distance from the heater with foam. About 60cm/2 foot should do it. (There's no harm in lagging more). The lagging will also make the pipework more resistant to freezing.

Christian.

[Christian McArdle]

Looking at the building regulations, it is suggested that you insulate for 1 metre from the vessel, or until it becomes concealed in the building fabric.

Christian.

[Keithc666767117]

Can not stopheat loss 100% why not lag hot water pipes as well