franchising

at greentomato we have a vision: to make the greatest possible contribution
to improving the environment through education and an innovative approach
to business. we do this through a number of companies. we are always on
the look out for people or companies who share our values and who would
like to work with the greentomato brand as a franchisee. if you are interested,
have a look at the way we approach franchises.

My boiler is 90% efficient; there is almost no room for improvement.

Truth: A “heat pump” can produce 4... read more

My boiler is 90% efficient; there is almost no room for improvement.


Truth: A “heat pump” can produce 4 units of heat for every unit of electrical input. Thus by a conventional definition it is 400% efficient, a big improvement on your boiler! (To avoid confusion, a different measure of efficiency called the Coefficient of Performance, or CoP, is used in heat pumps).


However, the really large fuel bill savings will come from insulating, airtighting and replacing windows in a house to mean that the boiler (or heat pump) does not have to produce so much energy in the first place.