OP... Iron has a thermostat.
- 70% duty-cycle @ 2kW @ 1/2hr @ 180x per year
- 0.70 x 2 x 0.5 x 180 = 126kWhr = £12.60.

Reducing it 50% brings it down to £6.30 per year.
Not much for a 50% reduction - but no point ironing things that do not
need ironing.


Water Meter!!
The Rateable Value charge may be £470, Assessed Usage charge may be
£420, but Water Meter may be £200. Now that could be an easy way to
save £800 over 4 years. That is 1 year free electricity in a very bad
(2009) winter after basic insulation changes have been made.

Cash in Banks.
Cash is earning 0.1%, sadly the govt shut the NSandI Index Linked
Savings Certificates (RPI Index Linked + 1%) which is just an insult -
or smart considering how high inflation will be over the next 10 yrs.
Even so ING offers about 3% and so do others so do not lose even that
seemingly small 2.5-2.9% potential.

Can you save £20/month into a broad equity-multi-asset fund?
You could put 20/month into an ISA fund such as Cazenove Multi-Manager
Diversity, www.trustnet.com will let you chart it, you simply set up a
D/D to buy it. Avoid Absolute Return funds or UK Index funds because
the UK FTSE is now quite tired in terms of 81% global income (not UK)
and frankly not likely to give a good return unless you time a 2008
crash event and hold for a very long time. Try to save 20/month for
5yrs and it at least gives a good reserve for events. Particularly if
you tell no-one about it, then it is not "assumed to be part of the
pot". If you can do 50/month that really will make a difference after
5yrs, a useful chunk that can swat otherwise horrible bills.

E7 has the benefit of no maintenance, no £2000 boiler cost, no
radiator replacement and so on -- but it does require good insulation
to work properly.