Socially and environmentally responsible Look at the

Socially and environmentally responsible. Look at the following table that compares two types of combi boilers and their running costs the numbers are considered for a 3 bedroom-flat with 4 residents the annual costs were calculated with a presumption that 1 kwh of gas costs 4.38 pence and 1 kwh of electricity is 13.58 pence. Besides.

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