Saving you Money as well as CO²
The cost of the Bygone window
calculated in the same way would
equate to £7.83 per window or £54.81
A heating saving of £156.44
The Energy rating Way
As illustrated on the energy rating
label, the Bygone window only uses
20KW per year, or £2.00 per year.
Therefore the average house
heating loss is £17.50 per year,
after the boiler efficiency adjustment
has been made.
A massive cost saving of
£193.75 per year.
Saving the environment
More importantly than purely the cost
saving for the homeowner, is the long
term improvements for the planet.
It is known that for every GJ of heat
created from coal, 120 KG of CO² are
created, 75kg for Oil and 50kg for gas.
For a point of calculation lets use the
oil figures as the average.
Therefore assuming the
size of the box sash
market, means that
638.6 thousand tonnes
of CO² are created each
year heating the outside
world through the
window’s heat loss.
If all 44 million windows
were replaced for ones as
efficient as the Bygone
window then this could
be reduced to 14.6
A 624 thousand tonnes of
CO² improvement every
624 thousand tonnes of CO² is a
substantial amount of gas, an
astronomical 325 Million litres or
the equivalent of:
15.4 millennium domes!
TO find out more about how you can
help reduce CO² emissions, enjoy lower
heating costs, AND retain the
character, appearance and value of
your home contact either:
The Bygone Collection
of sash windows, solving
tomorrows issues today,
whilst maintaining the
Please visit our website at: